Introductory Logic: Unit 2 ********* Lessons 6-10

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Across
  1. 1. Second type of sentence that is not a statement.
  2. 4. The first statement must imply the second, and the second must imply the first. Both statements must either be true, or they must both be false.
  3. 5. A statement by a person concerning his own desires, beliefs or feelings.
  4. 7. actual inconsistency between two statements
  5. 10. When there appears to be inconsistency.
  6. 12. A statement which is always true because of its logical structure.
  7. 13. A sentence that is either true or false
  8. 14. Two statements are related by the truth of one requiring the truth of the other.
  9. 16. A statement that is always false because of its logical structure.
  10. 17. a statement whose truth value can be determined from the statement itself.
Down
  1. 2. difference of opinion or perception
  2. 3. Two statements in which the truth or falsity of one has no effect on the truth or falsity of the other.
  3. 6. misunderstanding due to differing definitions for one or more words
  4. 8. Third type of sentence that is not a statement.
  5. 9. First type of sentence that is not a statement.
  6. 11. A statement whose truth value depends on evidence or information from outside itself. (authority, experience, observation, deduction)
  7. 15. Two statements are true at the same time.