Logic

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Across
  1. 4. A sentence that is either true or false (truth value). Represented by using letters such as p or q.
  2. 5. An example that shows a conjecture is false.
  3. 6. Conditional formed by negating the hypothesis and conclusion.
  4. 8. Given a conditional statement, if the conclusion is false, then the hypothesis is false.
  5. 11. Conditional formed by switching the hypothesis and conclusion.
  6. 14. Statement that has the opposite truth value.
  7. 15. Statements joined by the word AND. Only true when both statements are true.
  8. 17. Conditional formed by negating and switching the hypothesis and conclusion.
  9. 18. A statement that can be written in "if-then" form. Can also be read as "implies".
  10. 19. The phrase immediately following the word "then".
Down
  1. 1. The phrase immediately following the word "if".
  2. 2. The process of reasoning logically and drawing a conclusion from given facts and statements.
  3. 3. Given two conditional statements, the conclusion of the first statement is the hypothesis of the second statement.
  4. 7. Given a conditional statement, if the hypothesis is true, then the conclusion is true.
  5. 9. Two or more statements joined by the words AND or OR.
  6. 10. Making a conclusion based on observations and patterns.
  7. 12. Statement that is the conjunction of a conditional and its converse. Only true when both the conditional and converse are true.
  8. 13. Statements joined by the word OR. Only false when both statements are false.
  9. 16. A concluding statement reached using inductive reasoning.