1. Determine if the following deduction rule is valid: p∨q ¬p _______ ∴ q 2. Determine...

1. Determine if the following deduction rule is valid:

p∨q
¬p

_______

∴ q

2. Determine if the following is a valid deduction rule:

(p∧q)→r
¬ p ∨ ¬ q

________

∴ ¬r

3. Suppose p and q are (possibly molecular) propositional statements. Prove that p and q are logically equivalent if any only if p↔q is a tautology.

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Expert Solution

Colby Messinger answered 1 year ago

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