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Flashcards in 8.2 Deck (4)
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1

Law of the excluded middle

the principle that for any given statement, either it or its negation is true

2

Law of noncontradiction

the principle that contradictions are never true

3

Rule of thumb 4 and 5

4. it is often useful to consider logically equivalent forms of the conclusion
5. Both conjunction and addition can lead to useful applications of De Morgan's laws

4

First five equivalence rules

Double negation
commutation
Association
De Morgan's laws
Contraposisiton