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Determine which of the following are (a) tautologies
(b) logically true.
- 1.
- (A B) (-A -B)
- 2.
- (A B) (A -B)
Repeat the exercise assuming that
- 3.
- A is logically true.
- 4.
- A is logically false.
Mike Rosner
Fri Oct 30 14:59:11 MET 1998