Logic

2. can represent negation, meaning "not."
5. represents a conditional statement, symbolized by "→" or "⊃." It means that if the first part of the statement (the antecedent) is true, then the second part (the consequent) must also be true.
7. is a quantifier in logic and mathematics, meaning that a statement is true for every single element in a specific set.
9. often signifies a derivative or a transpose.
13. is a word that indicates a conclusion or consequence that follows logically from previous statements or arguments.
14. represents the logical conjunction "and." This means that a statement with an ampersand is only true if both parts of the statement are true.
15. is a fundamental concept in logic and language, expressing negation or the opposite of something.

1. is often called a caron or a háček. It looks like an upside-down "v" (ˇ). It's used in various languages as a diacritical mark, which means it modifies the pronunciation of a letter.
3. means having the same value, meaning, or effect as something else.
4. is a phrase used in mathematics and logic to indicate that at least one element within a specific set or domain satisfies a given condition or property.
6. represents the operation of addition, which combines two or more numbers to find their sum.
8. is used to indicate exponentiation, meaning raising a number to a power.
10. is a phrase used in mathematics and logic to indicate that a statement is true for every element in a specific set or domain.
11. often represents the logical disjunction "or." This means that a statement with a bar symbol is true if at least one of the parts of the statement is true.
12. is a straight line that runs from top to bottom and is perpendicular to a horizontal line. It's like a line that goes straight up and down.