Across
- 5. States that any real number, a, is equal to itself
- 7. Instead of showing that the conclusion to be proved is true, you show that the entire alternative is false
- 9. It is a statement accepted after it is proven deductively
- 10. It is the act of making reason
- 12. Is an angle of exactly 90°
- 16. It is a method of reasoning in which the premises are viewed as supplying some evidence, but not full assurance, for the truth of conclusion
- 17. It is a statement that is accepted without proof
- 19. It is a statement drawn from the hypothesis
Down
- 1. It is a statement which is accepted or known at the beginning
- 2. A statement or idea taken to be true and on which an argument or reasoning may be base
- 3. Equality tells us that both sides of an equal sign are equal no matter which side of the equal sign they are on
- 4. Angles measure less than 90 degrees
- 6. The logical statements are presented using complete sentences backed up by reason
- 8. It tells us that if A=B and B=C, then A=C
- 11. It is the process of reasoning from one or more statements to reach a logical Conclusion
- 12. A statement presented in justification or explanation of a believe or action or a proof
- 13. Is two angles that are adjacent and whose non-common sides form a straight line
- 14. It is a logical argument in which statement is supported or justified
- 15. It is a way of showing the truth or false of a given statement or math equations
- 18. Is a type of angle that is always larger than 90° but less than 180°
