logic Crossword Puzzles

LOGIC SYMBOLS 2023-09-11

Across

^
!
∀
exclusive or
∵
not-negation
tilde

Down

∴
l
&
.
⇒
IF AND ONLY (iff)
~
+

15 Clues: ^ • ∴ • l • & • . • ⇒ • ! • ~ • + • ∀ • ∵ • tilde • exclusive or • not-negation • IF AND ONLY (iff)

Logic Gates 2020-05-21

Across

what is displayed
purpose (of a machine)
a kind of logic where answers are either true or false
exclusive OR
‘+’ = ‘-’ , ‘yes’ = ‘no’. which gate am I talking about?
only works with 2 positives
reasoning
to enter something in
billionaire Bill

Down

signs or icons
a place where all the possible outputs are stated
only works with 2 negatives
the most common ‘building block’
at least one of the input must be 1 for the output to be 1.
roundabout journey

15 Clues: reasoning • exclusive OR • signs or icons • billionaire Bill • what is displayed • roundabout journey • to enter something in • purpose (of a machine) • only works with 2 negatives • only works with 2 positives • the most common ‘building block’ • a place where all the possible outputs are stated • a kind of logic where answers are either true or false • ...

Logic symbols 2020-09-24

Across

Down

15 Clues: ∴ • ⊕ • | • ∵ • + • ∨ • ¬ • ^ • ~ • x • & • ⇔ • ⋅ • ⇒ • x'

LOGIC SYMBOLS 2024-09-01

Across

&
+
⇒
∴
!
⊕︀
∃

Down

15 Clues: | • & • ∨ • + • ¬ • ~ • ⇒ • ∴ • ∀ • ^ • ! • ∵ • ∃ • x̄ • ⊕︀

LOGIC SYMBOLS 2024-09-01

Across

Down

15 Clues: ! • ¬ • ^ • ∵ • & • ~ • ∀ • | • ⇒ • ∃ • ∴ • ⋅ • v • ⇔ • +

LOGIC SYMBOLS 2024-09-02

Across

is used to represent the exclusive OR operation.
reverses the truth value of an operand.
symbolizes as → which means implication
when both operands have the same truth value.
used when both parts of the statement must be true.
sometimes used to represent the logical disjunction "or."
is sometimes used as a shorthand for the logical conjunction "and."
it is a symbol for !

Down

represents the same logical operation as the conjunction symbol ∧.
represents the same logical operation as the disjunction symbol ∨.
indicates a reason or premise for a subsequent statement.
often used as a shorthand for the logical negation "not."
the negation of a proposition.
addition operator "+" is used in logic
indicates a conclusion drawn from previous statements or premises.

15 Clues: it is a symbol for ! • the negation of a proposition. • addition operator "+" is used in logic • reverses the truth value of an operand. • symbolizes as → which means implication • when both operands have the same truth value. • is used to represent the exclusive OR operation. • used when both parts of the statement must be true. • ...

Logic symbols 2024-09-02

Across

Down

&
V
~
!
x’
⇒

15 Clues: & • V • ~ • ! • ↔ • ∵ • ⇒ • + • ⊕ • • • ^ • ∴ • | • ∀ • x’

LOGIC SYMBOLS 2024-09-02

Across

+
!
∃
all ∀
x̄
line |
∴

Down

⊕︀
⇒
¬
&
caret ∨
∵
^
~

15 Clues: ⇒ • + • ¬ • & • ∵ • ! • ^ • ∃ • ~ • ∴ • ⊕︀ • x̄ • all ∀ • line | • caret ∨

LOGIC SYMBOLS 2024-09-02

Across

∀
∵
line |
!
∃
x̄

Down

⊕︀
∴
⇒
caret ∨
^
+
~
¬
&

15 Clues: ∴ • ⇒ • ∀ • ^ • + • ~ • ∵ • ¬ • ! • & • ∃ • ⊕︀ • x̄ • line | • caret ∨

Logic Symbols 2023-03-03

Across

¬
caret
&
| line
x' quote
⊕
⇔
+

Down

∵
there ∃
∴
∨ caret
⇒
! mark
~ negation

15 Clues: ∵ • ¬ • ∴ • & • ⇒ • ⊕ • ⇔ • + • caret • | line • ! mark • there ∃ • ∨ caret • x' quote • ~ negation

Logic symbols 2025-02-24

Across

→
◇
exists ∃
⊢
equivalence ≡
T
and only if ↔
∧

Down

or ⊕
□
¬
⊥
∨
F
all ∀

15 Clues: □ • → • ¬ • ⊥ • ◇ • ∨ • ⊢ • F • T • ∧ • or ⊕ • all ∀ • exists ∃ • equivalence ≡ • and only if ↔

Logic Symbols 2025-02-25

Across

⇒
not - negation
x'
∀
∄
∨
∴
!

Down

15 Clues: ⇔ • & • ⇒ • ⊕ • ~ • ∀ • ¬ • | • ∄ • ∨ • ∴ • ! • x' • and • not - negation

Overcoming Personal Barriers to Creativity 2020-01-06

Overcoming Personal Barriers to Creativity crossword puzzle

Across

overcome
avoid
assumptions
positive
analytical
growth

Down

conceptual
creativity
failure
logic
negative
barriers
apply

13 Clues: logic • avoid • apply • growth • failure • overcome • negative • barriers • positive • conceptual • creativity • analytical • assumptions

Logic Symbols 2021-02-26

Across

∴
⇔
plus, exclusive or-xor
mark, !
^
&
caret, v
¬

Down

line, |
negation
quote, x'
+
∵
⇒
•

15 Clues: ∴ • ⇔ • + • ∵ • ^ • ⇒ • • • & • ¬ • line, | • mark, ! • negation • caret, v • quote, x' • plus, exclusive or-xor

Logic Gates 2020-05-21

Across

only works with 2 negatives
at least one of the input must be 1 for the output to be 1.
reasoning
exclusive OR
‘+’ = ‘-’ , ‘yes’ = ‘no’. which gate am I talking about?
only works with 2 positives
purpose (of a machine)
billionaire Bill
signs or icons

Down

a kind of logic where answers are either true or false
roundabout journey
a place where all the possible outputs are stated
the most common ‘building block’
to enter something in
what is displayed

Logic Symbol 2020-09-16

Across

Down

&
+
¬
x or not-negation
x'
⇒
~
^
⊕

15 Clues: • • & • + • ¬ • ∃ • ∀ • ⇒ • ~ • ^ • | • ⊕ • ⇔ • ∨ • x' • x or not-negation

Logic symbols 2021-09-11

Across

Down

15 Clues: ! • ∨ • ⇔ • ⇒ • ^ • | • ∴ • ¬ • ~ • & • ∀ • ⊕ • ⋅ • + • x'

LOGIC SYMBOLS 2021-09-13

Across

example ! x
⇔
&
example x ⋅ y
example x + y
example ¬ x
∴

Down

example x ^ y
∨
exclusive or - xor
∵
∀
negation
⇒
x'

15 Clues: ∨ • ∵ • ∀ • ⇔ • ⇒ • & • ∴ • x' • negation • example ! x • example ¬ x • example x ^ y • example x ⋅ y • example x + y • exclusive or - xor

Logic Symbols 2022-03-15

Across

!
¬
plus ⊕
∴
&
⇒
∃
∀

Down

15 Clues: ↔ • ^ • ⋅ • ! • ~ • ¬ • ∨ • ∴ • & • ⇒ • + • ∵ • ∃ • ∀ • plus ⊕

Logic Symbols 2022-03-15

Across

Down

15 Clues: ⇒ • ∄ • ⊕ • ∃ • • • & • ⇔ • ∀ • ^ • | • ∴ • ∨ • + • ∵ • x'

LOGIC SYMBOLS 2021-09-06

Across

X'
.•.
+
^
|
-
&

Down

•
!
v
~
•.•
equivalent or xor
if and only if (iff)
not-negation

15 Clues: • • ! • v • ~ • + • ^ • | • - • & • X' • •.• • .•. • not-negation • equivalent or xor • if and only if (iff)

LOGIC SYMBOLS 2021-09-06

Across

^
!
+
|
•.•
.•.
not-negation
&

Down

if and only if (iff)
equivalent or xor
~
.
-
v
quote X'

15 Clues: ^ • ~ • ! • . • - • v • + • | • & • •.• • .•. • quote X' • not-negation • equivalent or xor • if and only if (iff)

LOGIC SYMBOLS 2021-09-08

Across

example ! x
⇔
&
example x ⋅ y
example x + y
example ¬ x
∴

Down

example x ^ y
∨
exclusive or - xor
∵
∀
negation
⇒
x'

15 Clues: ∨ • ∵ • ∀ • ⇔ • ⇒ • & • ∴ • x' • negation • example ! x • example ¬ x • example x ^ y • example x ⋅ y • example x + y • exclusive or - xor

LOGIC SYMBOL 2022-03-16

Across

Down

15 Clues: + • ∀ • ∄ • ^ • . • & • ⇔ • ∨ • ~ • ⇒ • ⊕ • ∴ • ∵ • ∃ • x'

Logic Symbols 2022-03-16

Across

∃
+
∴
∵
|
!
⇒
negation

Down

15 Clues: ∨ • ∃ • + • ∴ • ∵ • ⇔ • | • ^ • ∀ • & • ! • ⊕ • ⇒ • x' • negation

LOGIC SYMBOLS 2022-03-16

Across

symbol name of |
symbol name of ∀
symbol name of ∃
⇔
definition of tilde
∨
⇒

Down

symbol name of x'
symbol name of !
symbol name of ^
symbol name of ∴
+
symbol name of &
symbol name of negation
⊕

15 Clues: + • ⊕ • ⇔ • ∨ • ⇒ • symbol name of | • symbol name of ! • symbol name of ^ • symbol name of ∴ • symbol name of ∀ • symbol name of & • symbol name of ∃ • symbol name of x' • definition of tilde • symbol name of negation

Logic Symbols 2022-03-16

Across

if and only or iff
not negation or !
∀
and or &
or or +
negation or ~
or or V
not negation or X'

Down

∴
or or |
∄
not negation
exclusive or xor
and
⇒

15 Clues: ∴ • ∄ • ∀ • ⇒ • and • or or | • or or + • or or V • and or & • not negation • negation or ~ • exclusive or xor • not negation or ! • if and only or iff • not negation or X'

Logic Symbols 2022-03-12

Across

Down

15 Clues: | • ! • ^ • ~ • ¬ • & • ∵ • ⋅ • ∃ • ⊕ • ∀ • ∴ • ⇔ • ⇒ • +

LOGIC SYMBOLS 2023-02-24

Across

∴
X'
•
tilde
!
⇒
¬
∃

Down

|
∨
+
if and only if (iff)
^
&
⊕

15 Clues: | • ∨ • + • ∴ • ^ • & • • • ⊕ • ! • ⇒ • ¬ • ∃ • X' • tilde • if and only if (iff)

Logic Words 2022-09-16

Across

Down

∴
&
∃
⋅
!
+
⇔,↔
plus ⊕
~

15 Clues: ∴ • & • ∃ • ⋅ • ∨ • ! • + • ¬ • ⇒ • ∀ • | • ~ • x' • ⇔,↔ • plus ⊕

Logic Symbols 2024-02-17

Across

Down

∃
+
^
~
∴
⇔ ↔
⊕
⇒
a horizontal line written above a mathematical symbol to give it some special meaning

15 Clues: ∃ • + • ∀ • ^ • ∨ • ~ • ∴ • ⊕ • ¬ • ⇒ • ∵ • & • x' • ⇔ ↔ • a horizontal line written above a mathematical symbol to give it some special meaning

LOGIC SYMBOLS 2024-08-31

Across

Down

15 Clues: ~ • ∵ • ↔ • ∀ • ! • ∨ • ⊕ • + • ∴ • ¬ • ∃ • | • & • ^ • x'

Mathematical logic 2022-12-14

Across

Determine whether it is true or false(T∧F)∨¬(T∨F)?
R={(1,y);(1,z);(3,y)} Range (y,z) --> ?(1,3)
denoyted by A∪B
p∨~p is always true. It is ...
"A ∪ ∅ = A" Which law of algebra of sets is it?
What is the opposite of disconjunction?
(a,b),(b,c),(a,c) What is this?
A compound proposition that is always false. What is called?
"The dual of ∧ is ∨"

Down

If the variables are only 0 and 1, we call ...
Today is Sunday. Then I say that today is not Sunday. What is this? Inverse or negation?
How is a set that has no elements called a set?
R={(2,1);(3,1);(2,4)} X={(1,2);(1,3);(4,2).What is the set X according to R?
x↔️y What is this sign?
Determine whether these statement is true or false? If 1+1=2, then London is the capital of England.

15 Clues: denoyted by A∪B • "The dual of ∧ is ∨" • x↔️y What is this sign? • p∨~p is always true. It is ... • (a,b),(b,c),(a,c) What is this? • What is the opposite of disconjunction? • R={(1,y);(1,z);(3,y)} Range (y,z) --> ?(1,3) • If the variables are only 0 and 1, we call ... • How is a set that has no elements called a set? • "A ∪ ∅ = A" Which law of algebra of sets is it? • ...

Logic Symbols 2022-09-08

Across

Down

∨
∵
⇒
^
~
⊕
¬
not - negation

15 Clues: ∨ • & • . • ∵ • ⇒ • ! • ^ • ~ • ⊕ • ∀ • ∴ • + • ¬ • ⇔ • not - negation

Logic Words 2022-09-16

Across

|
~
⇔,↔
!
+
∴
⋅

Down

x'
∨
∃
∀
plus ⊕
⇒
&
¬

15 Clues: | • ∨ • ~ • ∃ • ∀ • ! • ⇒ • & • + • ¬ • ∴ • ⋅ • x' • ⇔,↔ • plus ⊕

LOGIC SYMBOLS 2023-09-10

Across

The symbol is ∃
The symbol is &
The symbol is ⇒
It mean negation
It means 'or' with a symbol of ∨
The symbol is ∀
It mean not-negation with a symbol of x'

Down

Used also as 'and' with a symbol of (^)
The symbol is ∵
The symbol is ∴
The symbols is ↔
The symbol is ¬
Means 'and' with a symbol of (.)
The symbol is !
It means exclusive or -xor

15 Clues: The symbol is ∵ • The symbol is ∃ • The symbol is ∴ • The symbol is & • The symbol is ¬ • The symbol is ⇒ • The symbol is ! • The symbol is ∀ • The symbols is ↔ • It mean negation • It means exclusive or -xor • Means 'and' with a symbol of (.) • It means 'or' with a symbol of ∨ • Used also as 'and' with a symbol of (^) • It mean not-negation with a symbol of x'

Logic Symbols 2023-09-11

Across

Down

15 Clues: ∣ • + • ⇒ • ⋁ • ' • ∴ • & • ! • ⋅ • ^ • - • ∵ • ∃ • ¬ • Φ

Logic Symbols 2023-09-14

Across

Down

15 Clues: & • ! • ⇒ • ^ • ∵ • + • ⊕ • ∨ • ¬ • ∄ • ∃ • ∴ • ~ • ∀ • x̄

Logic Symbols 2025-02-22

Across

used to indicate a quotation within another quotation
∵
two or more values are the same or have the same value
a straight line that runs from top to bottom or bottom to top
means addition
an "approximately equal to" or "equivalent to" relationship between two values
term used to refer to the symbol &, which stems from the ligature of the Latin word et, meaning “and.”
used to indicate an exponent, meaning it signifies that a number is being raised to a certain power

Down

if something is true, then something else is also true
represented by the symbol "∃" and is called an existential quantifier
a V-shaped symbol that's often used in typography and proofreading
a horizontal line above a number or symbol, or a method for solving problems
a mathematical symbol representing a specific operation
∀
used to indicate a logical consequence

15 Clues: ∵ • ∀ • means addition • used to indicate a logical consequence • used to indicate a quotation within another quotation • if something is true, then something else is also true • two or more values are the same or have the same value • a mathematical symbol representing a specific operation • a straight line that runs from top to bottom or bottom to top • ...

LOGIC SYMBOLS 2025-02-23

Across

∀
∃
∴
∵
not negation
^
if and only if (iff)

Down

exclusive or - xor
&
x'
∨
negation
¬
x̄
⇒

15 Clues: ∀ • & • ∃ • ∴ • ∨ • ¬ • ∵ • ⇒ • ^ • x' • x̄ • negation • not negation • exclusive or - xor • if and only if (iff)

Logic Vocabulary 2024-10-25

Across

term that describes something about the subject
a sentence that is either true or false
(law of)if a statement is true, then it is true
when the truth of one statement requires the truth of the other
word that has more than one definition
the scope of its claim about the extension of a subject; universal or particular
a concept that is expressed precisely in words
(premise) contains the minor term
statement that gives the meaning of a term

Down

the term being described or about which something is asserted
(disagreement); difference of opinion or perception
the science and art of reasoning well
sum of all common attributes denoted by the term
a deductive argument with 2 premises and 3 terms
reasoning with certainty from premises to conclusions

15 Clues: (premise) contains the minor term • the science and art of reasoning well • word that has more than one definition • a sentence that is either true or false • statement that gives the meaning of a term • a concept that is expressed precisely in words • term that describes something about the subject • (law of)if a statement is true, then it is true • ...

Logic Symbols 2025-02-28

Across

Down

15 Clues: ⊕ • | • & • ~ • ∃ • ∨ • ^ • ⋅ • ! • ⇔ • ⇒ • ¬ • + • ∀ • x'

logic symbols 2025-02-26

Across

Down

15 Clues: ∃ • ∴ • ∵ • ⇔ • ~ • & • ∀ • • • ⇒ • ∨ • | • ! • ^ • X' • x̄

Logic Chapter 1-5 2025-08-29

Across

terms applied to different things/meanings
statement expresses truth/falsehood
argument follows its premises
a tree to classify concepts
affirms/denies something
affirm or deny
each simple concept to define complex concept
terms with the same meaning
distinguish true from false
dealing with truths and propositions
socrates is a man
terms spelled the same with different meanings
verbal mental real

Down

what a concept refers to
both true and valid
to be/is/are
univocal equivocal analogous
father of traditional logic
affirming/denying something about it
sum of notes represented by concept
logic interested in the form and structure
science of right thinking
statement to reality
forming a concept
verbally expresses concept

25 Clues: to be/is/are • affirm or deny • forming a concept • socrates is a man • verbal mental real • both true and valid • statement to reality • what a concept refers to • affirms/denies something • science of right thinking • verbally expresses concept • father of traditional logic • a tree to classify concepts • terms with the same meaning • distinguish true from false • ...

CROSSWORD-1 2016-08-28

Across

..........Gates are switching circuits used to control some electronic systems
......Code is single error-correcting code; code group contains coded bits and parity bits.
A system where the data varies continuously with time and can have any value between two limits.
....Gate:A logic circuit whose output is 0 when at least one output is 1.
A logic gate, also known as NOT, that changes its input logic level to the opposite state.
What is a binary digit referred to as?
Another name for maxterm expression
The acronym for American Standard Code for Information Interchange is .......
Don't.... Condition:Situation when a circuit's output level for a given set of input conditions can be assigned as either a 1 or 0.
.....adder is a circuit that performs addition using inputs form A and B only
.......logic circuit is a circuit whose output depends only on its current combination of input values (or "input combination")

Down

.......Number system that uses 10 different digits or symbols to represent a quantity.
For any negative number k, the ....'s complement is obtained by adding a bias term of 2n, so that the positive number k+2n is used to represent the negative number k.
The decimal equivalent of 10100 is...
..........is used when looking for zeros in a truth table.
......bit is used to store a 0 or 1 depending on the result of binary addition
...........Codes are used to represent characters.
......term: A term in a Boolean expression where one or more true or complement variables are ANDed.
After the binary system, ___________ numbers are the most often used in digital applications.
......Laws:X+X = X,X*X = X
.......law:x+xy=x and x(x+y)=x
A.......... code in which corresponding decimal digits are easily determined by adding the weights associated with the 1's in the group's code.
A logic gate that has two inputs. If both inputs are '1' it will output '1', otherwise it will output '0'.
A karnaugh map is used to ...... the terms in a Boolean logic expression.
The rightmost bit of a binary number. This bit has the number's smallest positional multiplier.

25 Clues: ......Laws:X+X = X,X*X = X • .......law:x+xy=x and x(x+y)=x • Another name for maxterm expression • The decimal equivalent of 10100 is... • What is a binary digit referred to as? • ...........Codes are used to represent characters. • ..........is used when looking for zeros in a truth table. • ....Gate:A logic circuit whose output is 0 when at least one output is 1. • ...

Logic Review 2019-01-06

Across

A compound statement with the "If ..., then ..." structure.
A type of diagram that illustrates a connection between concepts or propositions.
The relationship between to things that imply each other.
The shorter way saying implication.
A compound statement that is false for all possible truth values.
The negative of a proposition.
A collection of objects inside curly brackets.

Down

A formal word used for 'or.'
A statement that is either true or false.
A proposition whose truth value varies based on the person.
The values that we put into a truth table for a proposition.
The type of disjunction that does not contain the overlap of the two sets.
The ________ of a set A is the values outside of A and in the universal set.
The negation of a contradiction.
An informal word used for conjunction

15 Clues: A formal word used for 'or.' • The negative of a proposition. • The negation of a contradiction. • The shorter way saying implication. • An informal word used for conjunction • A statement that is either true or false. • A collection of objects inside curly brackets. • The relationship between to things that imply each other. • ...

Logic Symbol 2020-09-16

Across

Down

&
+
¬
x or not-negation
x'
⇒
~
^
⊕

15 Clues: • • & • + • ¬ • ∃ • ∀ • ⇒ • ~ • ^ • | • ⊕ • ⇔ • ∨ • x' • x or not-negation

Logic Symbols 2022-03-10

Across

Down

&
negation
x'
not - negation
∴
⇔
⇒

15 Clues: & • ¬ • ∴ • ∵ • ⇔ • ⇒ • ^ • | • + • ∀ • ⊕ • ⋅ • x' • negation • not - negation

Logic Symbols 2022-03-12

Across

⋅
x'
&
exclusive or - xor, ⊕
↔
∵
!

Down

^
+
⇒
∨
¬
∴
∀
negation,~

15 Clues: ^ • ⋅ • + • ⇒ • & • ∨ • ¬ • ∴ • ∀ • ↔ • ∵ • ! • x' • negation,~ • exclusive or - xor, ⊕

Logic Symbols 2022-03-15

Across

Down

15 Clues: ⇒ • ∨ • ∃ • ⇔ • ∴ • ! • ⊕ • ^ • ⋅ • ∀ • & • ∵ • ¬ • ~ • x'

Logic Symbols 2022-03-16

Across

Down

15 Clues: ∴ • | • ∃ • ~ • ↔ • ∵ • ∀ • ⋅ • & • ⇒ • + • x • ! • ¬ • x'

Logic Symbols 2023-03-09

Across

Down

15 Clues: ! • ∨ • ⇔ • ⇒ • ^ • | • ∴ • ¬ • ~ • & • ∀ • ⊕ • ⋅ • + • x'

LOGIC SYMBOLS 2023-03-06

Across

⊕ Exclusive or - xor
x' Not- negation
↔ If and only if (iff)
+ Or
! Not- negation
& And
^ And
∴
¬ Not- negation

Down

⇒
∀
∨ Or
~ Negation
∵
∃

15 Clues: ⇒ • ∀ • ∵ • ∃ • ∴ • ∨ Or • + Or • & And • ^ And • ~ Negation • ! Not- negation • ¬ Not- negation • x' Not- negation • ⊕ Exclusive or - xor • ↔ If and only if (iff)

Logic Symbols 2023-03-08

Across

Down

15 Clues: ⇔ • | • ^ • ~ • ⇒ • ∨ • ∀ • ∃ • ∴ • ∄ • ⊕ • ⋅ • & • ¬ • x'

Logic Symbols 2022-09-18

Across

.·.
^
x*y
y ’
∃
&
+

Down

·.·
v
!
~
i
∀
•
x ’

15 Clues: v • ^ • ! • ~ • i • ∀ • • • ∃ • & • + • ·.· • .·. • x*y • y ’ • x ’

Logic & Reasoning 2021-02-24

Across

The logical statements are written on the left side and its corresponding reasons on the right side. It often uses symbols of different relationships.
It is a statement accepted after it is proven deductively.
It is a way of showing the truth or falsehood of a given statement or math equations by a straightforward combination of established facts and usually axioms without making any assumptions.
It is a method of reasoning in which the premises are viewed as supplying some evidence, but not full assurance, for the truth of conclusion.
a definite or clear expression of something in speech or writing.
It is the act of making a reason. A process of reaching a logical conclusion after thinking about all the relevant facts.
It is an organized set of statements and reasons to establish the truth of a specific statement.

Down

It is the process of reasoning from one or more statements to reach a logical Conclusion.
It is a statement that is accepted without proof.
Instead of showing that the conclusion to be proved is true, you show that the entire alternative is false.
It is a statement which is accepted or known at the beginning.
It is a statement drawn from the hypothesis.
A statement presented in justification or explanation of a belief or action or a proof.
The logical statements are presented using complete sentences backed up by reason.
a statement or idea taken to be true and on which an argument or reasoning may be base.

15 Clues: It is a statement drawn from the hypothesis. • It is a statement that is accepted without proof. • It is a statement accepted after it is proven deductively. • It is a statement which is accepted or known at the beginning. • a definite or clear expression of something in speech or writing. • ...

LOGIC SYMBOLS 2021-09-08

Across

example ! x
⇔
&
example x ⋅ y
example x + y
example ¬ x
∴

Down

example x ^ y
∨
exclusive or - xor
∵
∀
negation
⇒
x'

15 Clues: ∨ • ∵ • ∀ • ⇔ • ⇒ • & • ∴ • x' • negation • example ! x • example ¬ x • example x ^ y • example x ⋅ y • example x + y • exclusive or - xor

LOGIC SYMBOLS 2021-09-06

Across

~
|
v
equivalent or xor
•.•
not-negation
!
•

Down

X'
&
-
^
.•.
if and only if (iff)
+

15 Clues: & • - • ^ • ~ • | • v • + • ! • • • X' • .•. • •.• • not-negation • equivalent or xor • if and only if (iff)

LOGIC SYMBOLS 2023-09-11

Across

tilde
~
⊕
^
•
&
X̅
⇔

Down

15 Clues: ∴ • ∀ • V • ~ • ⇒ • ⊕ • ∵ • ^ • • • & • + • ⇔ • ¬ • X̅ • tilde

LOGIC SYMBOLS 2023-09-11

Across

tilde
~
⊕
^
•
&
X̅
⇔

Down

15 Clues: ∴ • ∀ • V • ~ • ⇒ • ⊕ • ∵ • ^ • • • & • + • ⇔ • ¬ • X̅ • tilde

Logic Symbols 2023-09-10

Across

!
|
&
°•°
exclusive or xor
=>

Down

x’
not-negation
•°•
^
V
~
if and only if(iff)
•
+

15 Clues: ! • ^ • V • ~ • | • • • & • + • x’ • => • •°• • °•° • not-negation • exclusive or xor • if and only if(iff)

Logic symbols 2023-09-10

Across

Down

⇔
∀
⇒
^
+
∨
∵
not - negation

15 Clues: ⇔ • ∀ • ⇒ • ! • ^ • + • ⊕ • ∨ • ∵ • ∃ • ⋅ • ∴ • & • x' • not - negation

Logic Symbols 2023-09-12

Across

Down

15 Clues: ! • ^ • ~ • ∃ • ∴ • V • ∵ • ⇒ • ¬ • ⊕ • | • & • + • ∀ • •

Logic Symbols 2023-09-12

Across

is a Horizontal line
used before a logical consequence, such as the conclusion of a syllogism
mark to multiply by decreasing positive integers.
relationship between different propositions where the second proposition is a logical consequence of the first.
it's used to denote a small quantity, like an error, or perhaps a term which will be taken to zero in some limit.
Caret The symbol for “or”
means "approximately" and in logic it means "not."
is intended to show an argument to be valid

Down

exists to express the existence of a variable
The inverted form of the therefore sign ( ∴ ) used in proofs before logical consequences
is an operation that takes a proposition to another proposition "not ", standing for " is not true", written , or .
The (&) can replace the reserved value *AND.
is the truth-functional operator of conjunction or logical conjunction.
line a line parallel to the Y-axis
all is called a universal quantifier and is denoted by ∀x.

15 Clues: is a Horizontal line • Caret The symbol for “or” • line a line parallel to the Y-axis • is intended to show an argument to be valid • The (&) can replace the reserved value *AND. • exists to express the existence of a variable • mark to multiply by decreasing positive integers. • means "approximately" and in logic it means "not." • ...

Legal Logic 2024-06-05

Across

Legal process for administering a deceased person’s estate
Pike & Lustig
Venue for legal disputes and trials
Where property and assets are held
He emerged from a Big 8 accounting firm and then obtained top securities licenses
Legal wrong or injustice
Alternative dispute resolution method

Down

Courtroom cry for attention?
Policy providing financial protection
A more efficient and cost-effective means to resolution
Unlike vehicles, these are not titled in Florida
Licensed professionals who facilitate property transactions
Legally binding agreement
Legal principle of fairness and impartiality
Last _____ and testament

15 Clues: Pike & Lustig • Legal wrong or injustice • Last _____ and testament • Legally binding agreement • Courtroom cry for attention? • Where property and assets are held • Venue for legal disputes and trials • Policy providing financial protection • Alternative dispute resolution method • Legal principle of fairness and impartiality • Unlike vehicles, these are not titled in Florida • ...

Legal Logic 2024-06-05

Across

Legal process for administering a deceased person’s estate
Pike & Lustig
Venue for legal disputes and trials
Where property and assets are held
He emerged from a Big 8 accounting firm and then obtained top securities licenses
Legal wrong or injustice
Alternative dispute resolution method

Down

Courtroom cry for attention?
Policy providing financial protection
A more efficient and cost-effective means to resolution
Unlike vehicles, these are not titled in Florida
Licensed professionals who facilitate property transactions
Legally binding agreement
Legal principle of fairness and impartiality
Last _____ and testament

F. Logic 2024-02-21

Across

|
not-negation
the pattern of digits under the bar repeats without end
^
⊕︀
¬
→
∴

Down

if and only if (Iff)
⌄
X¹
+
∵
~
and

15 Clues: | • ⌄ • ^ • + • ∵ • ~ • ¬ • → • ∴ • X¹ • ⊕︀ • and • not-negation • if and only if (Iff) • the pattern of digits under the bar repeats without end

Logic Puzzler 2023-10-13

Across

switching the hypothesis and conclusion and negating both
created when the hypothesis and conclusion of a conditional statement are reversed
s statement joining two events together in the form of “If something, then something”
an artificial distraction from the essence of the problem
whether or not a given statement or proposition is true or false
any exception to a generalization
the part of a conditional statement just after the word if

Down

the process that uses logic to make conjectures based on previously accepted facts
the part of a conditional statement after then
when both the hypothesis and conclusion of a conditional statement are negated
an educated guess that is based on known information
a list of statements/reasons used to prove that a given mathematical concept or idea is true
the process of observing, recognizing patterns to make conjectures
a true statement combining a hypothesis and conclusion with the words 'if and only if'
a statement that can be proved to be true based on known and proved facts

15 Clues: any exception to a generalization • the part of a conditional statement after then • an educated guess that is based on known information • switching the hypothesis and conclusion and negating both • an artificial distraction from the essence of the problem • the part of a conditional statement just after the word if • ...

Logic symbols 2024-08-30

Across

the symbol is •
the symbol is =>
the symbol name of negation
the symbol is !
the symbol name of not-negation
the symbol is +
the symbol is &

Down

the symbol name of exclusive or-xor
the defination of ~
the symbol is |
the symbol is x'
the symbol is ^
the symbol name of if and only if (iff)
the defination of reversed caret
not-negation

15 Clues: not-negation • the symbol is • • the symbol is | • the symbol is ^ • the symbol is ! • the symbol is + • the symbol is & • the symbol is x' • the symbol is => • the defination of ~ • the symbol name of negation • the symbol name of not-negation • the defination of reversed caret • the symbol name of exclusive or-xor • the symbol name of if and only if (iff)

LOGIC SYMBOLS 2024-09-01

Across

∀
∃
∴
!
+
⊕︀

Down

15 Clues: ~ • ⇒ • ¬ • ^ • ∀ • & • ∨ • | • ∃ • ∵ • ∴ • ! • + • x̄ • ⊕︀

Logic Symbols 2024-09-02

Across

Down

^
–>
•••
~
&
quote x1

15 Clues: ^ • + • . • ~ • | • & • E • ! • x • V • –> • => • xor • ••• • quote x1

Logic Symbols 2024-09-02

Across

Down

if and only (iff)
∴
¬
|
x̄
⋅
∀

15 Clues: ⟹ • ∴ • ¬ • | • ∃ • ~ • v • ⋅ • ^ • ⊕ • + • ∀ • & • x̄ • if and only (iff)

Logic Symbols 2024-09-02

Across

Down

15 Clues: ⟹ • ^ • & • | • ∃ • + • ∴ • ∄ • ⨁ • ⇔ • v • • • ! • ~ • ∵

Logic Symbols 2024-09-02

Across

⇔
!
∃
¬P (Not P)
exclusive or - xor
∵

Down

P ∧ Q (And)
A ⊢ B
⇒
∨
∴
P ↔ Q
^
&
~

15 Clues: ⇒ • ∨ • ⇔ • ∴ • ! • ^ • & • ~ • ∃ • ∵ • A ⊢ B • P ↔ Q • ¬P (Not P) • P ∧ Q (And) • exclusive or - xor

Logic Symbols 2025-02-24

Across

– A statement always false
– The opposite of a statement
– A statement always true
– Conditional statement
– Part of an implication
– Short for "if and only if"
– Negation of an implication’s terms
– An invalid logical value

Down

– A conditional relationship
– A statement true in both directions
– Logical disjunction
– A valid logical value
– Logical negation
– The reversed form of an implication
– Logical conjunction

15 Clues: – Logical negation • – Logical disjunction • – Logical conjunction • – A valid logical value • – Conditional statement • – Part of an implication • – A statement always true • – A statement always false • – An invalid logical value • – A conditional relationship • – Short for "if and only if" • – The opposite of a statement • – Negation of an implication’s terms • ...

Foundation and History of AI (Activity 2) 2025-08-28

Foundation and History of AI (Activity 2) crossword puzzle

Across

Inference procedure pioneered by Robinson in 1965.
A central concept of AI that mimics human problem-solving.
Computer that defeated Kasparov in chess (1997).
Early AI program for geometry theorem proving.
Field studying rational decision-making.
Computer language popular in symbolic AI.
First AI conference location in 1956.
Symbol for knowledge representation in predicate logic.
Logic system developed by Aristotle.
One of the founders of modern control theory.
Father of cybernetics.

Down

Author of Principia Mathematica with Whitehead.
AI branch concerned with "acting humanly."
Branch of philosophy studying reasoning and valid arguments.
Machine built by Jacquard that used punched cards.
First commercial expert system developed by Digital Equipment Corp.
Philosopher who argued "I think, therefore I am."
Researcher who developed perceptrons.
Early AI program that solved word problems in algebra.
MIT professor, co-founder of AI field.
Inventor of the Analytical Engine.
Mathematician who formalized computation.
1973 report criticizing AI progress in the UK.
Greek philosopher who codified reasoning and logic.
Mechanical calculating device built by Pascal.

25 Clues: Father of cybernetics. • Inventor of the Analytical Engine. • Logic system developed by Aristotle. • Researcher who developed perceptrons. • First AI conference location in 1956. • MIT professor, co-founder of AI field. • Field studying rational decision-making. • Computer language popular in symbolic AI. • Mathematician who formalized computation. • ...

LOGIC SYMBOLS 2022-09-07

Across

Down

15 Clues: ^ • & • ∴ • ∨ • ¬ • ~ • ⇒ • ∵ • ⇔ • ∃ • ! • ⋅ • + • ∀ • x'

LOGIC SYMBOLS 2020-09-23

Across

Down

15 Clues: ∴ • ! • ↔ • ~ • ⇒ • ∨ • & • ^ • ∃ • ⋅ • ∵ • + • ∀ • ¬ • x'

LOGIC SYMBOLS 2020-09-22

Across

⇒
∴
!
&
exclusive or - xor
¬
^
+

Down

∨
↔
|
x
∵
tilde
∀

15 Clues: ∨ • ↔ • | • ⇒ • x • ∵ • ∴ • ! • & • ¬ • ∀ • ^ • + • tilde • exclusive or - xor

Logic symbols 2020-09-24

Across

Down

15 Clues: ⊕ • ⋅ • ~ • ⇔ • ^ • ∵ • x • & • ∃ • ⇒ • ∴ • ¬ • + • | • x'

LOGIC SYMBOLS 2021-09-06

Across

^
&
|
~
X'
if and only if (iff)

Down

.
!
•.•
+
equivalent or xor
v
not-negation
-
.•.

15 Clues: ^ • . • ! • + • & • v • | • ~ • - • X' • •.• • .•. • not-negation • equivalent or xor • if and only if (iff)

Logic Symbols 2021-09-14

Across

Down

15 Clues: ∀ • ∴ • | • ^ • ! • ∨ • ⇔ • ~ • + • ¬ • ⇒ • & • ⊕ • x̄ • x'

Logic symbols 2021-02-24

Across

Down

15 Clues: ∀ • ∨ • ∵ • ⊕ • ∃ • ~ • ¬ • ∴ • & • ^ • ! • + • ⇒ • | • x'

Logic & Reasoning 2021-02-24

Across

It is a statement which is accepted or known at the beginning.
REASONING It is the process of reasoning from one or more statements to reach a logical Conclusion.
PROOFING It is a way of showing the truth or falsehood of a given statement or math equations by a straightforward combination of established facts and usually axioms without making any assumptions.
A statement presented in justification or explanation of a belief or action or a proof.
It is a statement that is accepted without proof.
a statement or idea taken to be true and on which an argument or reasoning may be base.
COLUMN PROOF The logical statements are written on the left side and its corresponding reasons on the right side. It often uses symbols of different relationships.

Down

It is a statement accepted after it is proven deductively.
PROOFING Instead of showing that the conclusion to be proved is true, you show that the entire alternative is false.
REASONING It is a method of reasoning in which the premises are viewed as supplying some evidence, but not full assurance, for the truth of conclusion.
The logical statements are presented using complete sentences backed up by reason.
It is a statement drawn from the hypothesis.
a definite or clear expression of something in speech or writing.
It is the act of making a reason. A process of reaching a logical conclusion after thinking about all the relevant facts.
It is an organized set of statements and reasons to establish the truth of a specific statement.

Logic Symbols 2021-02-26

Across

mark, !
line, |
caret, v
∵
¬
⇒
^

Down

∴
⇔
&
•
negation
quote, x'
plus, exclusive or-xor
+

15 Clues: ∴ • ⇔ • & • • • ∵ • ¬ • ⇒ • + • ^ • mark, ! • line, | • negation • caret, v • quote, x' • plus, exclusive or-xor

Logic Symbols 2023-02-28

Across

all ∀
if and only if (iff)
not-negation
&
^
⇒
∴
or

Down

~
exclusive or-xor
|
+
•
∵
x′

15 Clues: ~ • | • & • + • • • ∵ • ^ • ⇒ • ∴ • x′ • or • all ∀ • not-negation • exclusive or-xor • if and only if (iff)

Logic Symbols 2023-03-03

Across

∵
x' quote
⇔
∨ caret
~ negation
¬
caret
⊕

Down

&
∴
! mark
| line
⇒
there ∃
+

15 Clues: & • ∴ • ∵ • ⇔ • ⇒ • ¬ • ⊕ • + • caret • ! mark • | line • ∨ caret • there ∃ • x' quote • ~ negation

F. Logic 2022-03-12

Across

!
∴
∀
&
¬ negation
∨
|
+
∵

Down

x'
exclusive
negation
⇔
ˆ
•

15 Clues: ! • ∴ • ∀ • & • ⇔ • ∨ • ˆ • | • + • ∵ • • • x' • negation • exclusive • ¬ negation

Logic Symbols 2022-03-17

Across

!
⇒
¬
∴
+
negation
⇔
x

Down

&
∵
⋅
x'
all, ∀
|
~

15 Clues: & • ∵ • ! • ⋅ • ⇒ • ¬ • | • ~ • ∴ • + • ⇔ • x • x' • all, ∀ • negation

LOGIC SYMBOLS 2022-03-16

Across

Down

15 Clues: ∃ • ⊕ • ⋅ • ∀ • ^ • ∵ • & • ∨ • ∴ • + • ~ • ∄ • ⇒ • ⇔ • x'

Logic Symbol 2023-09-14

Across

Down

15 Clues: V • ∴ • ¬ • ~ • & • + • ! • ∵ • ^ • ∃ • ∀ • ∄ • | • • • x'

Logic Symbols 2024-02-23

Across

Down

!
+
x'
x
⇒
all ∀
^
↔
⋅

16 Clues: ! • + • ⊕ • & • x • ~ • ⇒ • ^ • ∨ • ↔ • ⋅ • ¬ • | • ⇔ • x' • all ∀

LOGIC SYMBOLS 2024-02-19

Across

three dots pointing downward
NOt-negation
Up-pointing angle indicates continuation
The exclamation mark
A flipped letter E
means negation
shapes like the number 8
arrow that points left and right
an arrow that points on right

Down

Circled plus
indication of choices "or"
a three triangular dot
indicated choices
and Upside-down letter A
shapes like cross

15 Clues: Circled plus • NOt-negation • means negation • indicated choices • shapes like cross • A flipped letter E • The exclamation mark • a three triangular dot • and Upside-down letter A • shapes like the number 8 • indication of choices "or" • three dots pointing downward • an arrow that points on right • arrow that points left and right • Up-pointing angle indicates continuation

Logic Symbols 2023-09-08

Across

Down

15 Clues: ⇒ • ! • ^ • ∨ • ~ • ⊕ • ¬ • ⇔ • ∀ • x • ⋅ • + • | • & • x'

Logic Symbols 2024-09-01

Across

Down

15 Clues: ∀ • ! • ⇒ • ∵ • ¬ • ^ • ~ • & • + • ∃ • ↔ • ∴ • . • x̄ • ` '

Logic Symbols 2025-02-25

Across

line |
⊕
exists ∃
x̄
•
∴
~
+

Down

&
^
⇔
all ∀
∵
¬
⇒

15 Clues: & • ^ • ⇔ • ⊕ • ∵ • • • ¬ • ⇒ • ∴ • ~ • + • x̄ • all ∀ • line | • exists ∃

Logic Symbols 2025-02-24

Across

If and only if (iff)
'&' symbol
caret in this symbol 'vVV'
Large marsupial
'+' symbol
'∵' symbol
'!' symbol

Down

A line with this symbol'|'
'∴' symbol
'^' symbol
Exclusive or -xor
'~' symbol
Used to indicate negation.
'x' symbol
'•' symbol

15 Clues: '∴' symbol • '^' symbol • '&' symbol • '~' symbol • '+' symbol • '∵' symbol • 'x' symbol • '!' symbol • '•' symbol • Large marsupial • Exclusive or -xor • If and only if (iff) • A line with this symbol'|' • caret in this symbol 'vVV' • Used to indicate negation.