Across
- 3. ~
- 4. One part of a compound statement, such as "p" in "pv~q" or "pvq" in "r-->(pvq)"
- 7. <-->
- 10. A statement created by combining two or more statements or facts through connectives
- 11. Both statements in the compound are true, or both are false
- 12. Fallacy of the converse, fallacy of the inverse, misuse of disjunctive reasoning, misuse of transitive reasoning
- 13. A statement made up of two or more sentences combined using the words "if and only if"
- 14. Words that are used to join statements such as "and", "or", "if...then" and "if and only if"
- 17. -->
- 18. Another word for a valid argument
- 19. One statement of a compound statement represented by "p", "q", or "r"
- 20. A statement with a quantifier in it
- 22. A word such as "all", "some", or "no" (or "none")
- 25. Direct reasoning, contrapositive reasoning, disjunctive reasoning, transitive reasoning
- 26. The second statement in the compound is true or both statements are false
- 28. A statement made up of two or more statements combined with the word "or"
- 29. The conclusion is true when the premises are assumed true
- 30. Used to express whether a statement is true or false using a table listing the possible values of each element of the statement
Down
- 1. The complete compound statement in the last column of a truth table, it is what you are trying to prove true or false
- 2. A statement made up of two or more statements combined using the words "if,then"
- 5. A sentence that is either true or false but not both at once
- 6. A type of compound statement represented in a truth table
- 8. An invalid argument
- 9. ^
- 11. Both statements in the compound are true
- 15. When a statement is written with the word "not" to change the meaning
- 16. At least one statement in the compound is true
- 21. A statement consisting of two or more statements combined with the word "and"
- 23. ∴
- 24. v
- 27. A way to rephrase statements from "and" to "or" and vice versa