Introductory Logic Lessons 5-10

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Across
  1. 2. trusting our own senses to determine truth value
  2. 3. a statement whose truth value depends on evidence from outside itself
  3. 4. a statement by person concerning his own feelings or desires
  4. 7. when the truth or falsity of one statement has no effect on the truth or falsity of the other
  5. 8. when the truth of one statement requires the truth of the other
  6. 10. a trustworthy, authoritative source
  7. 13. statement which is false by logical structure
Down
  1. 1. reasoning to some conclusion based on other statements, whose truth value we know
  2. 3. a sentence that is either true or false
  3. 5. when two statements imply each other
  4. 6. a statement whose truth value can be determined from the statement itself
  5. 9. when 2 statements can both be true at the same time
  6. 11. a statement which is always true because of its logical structure
  7. 12. a disagreement based on a difference of opinion or perception