Question: Show that without truth table 1.p q (p q) (p q) 2.p q (p q) q. 3.p q (p q) q. 4. (p q) (p

Show that without truth table

1.p q (p q) (p q)

2.p q (p q) q.

3.p q (p q) q.

4. (p q) (p q) ( p q).

5.p q (p q).

6.(p q) q p q is a tautology.

7.(p q) (q q) is a tautology.

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