Logic and Reasoning

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Across
  1. 5. A statement that is accepted even without proof
  2. 7. An idea that may be possibly true based on argument
  3. 8. A way of showing the truth or falsehood of a given statement
  4. 10. An explanation of a belief or action or a proof
  5. 13. Instead of showing that the conclusion to be proved is true, you show that the entire alternative is false.
  6. 14. A statement drawn from the hypothesis.
  7. 15. A logical statements written on the left side and its proof corresponding reasons on the right side
Down
  1. 1. A statement which is accepted or known from the beginning
  2. 2. A statement accepted after it is proven deductively
  3. 3. A logical statements presented using complete sentences backed up by reason
  4. 4. A process of reasoning from one or more statements to reach a conclusion
  5. 6. The act of making a reason
  6. 9. A reasoning conducted or assessed according to strict principles of validity
  7. 11. A method of reasoning that only shows some evidence but not full assurance
  8. 12. A logical argument in which statements are from information