Ismail M.

asked • 09/06/16

Using Logical simplification

Could someone help me on the question below please.
 
Using Logical simplification, prove that the following are tautologies, contradictions or neither. Verify your answers using a truth tables.

(p ⇒ q) ∨ (q ⇒ p)
(p∨((p’∨ q)∧ q’))
(p∧((p’∨ q)∧ q’))
((p ⇒ q) ⇒ p) ⇒ p

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