Prove p → (q ∨ r), q → s, r → s ⊢ p → s

Prove

p → (q ∨ r), q → s, r → s ⊢ p → s

Expert Solution

Colby Messinger answered 2 years ago

Discrete math question Prove that ¬(q→p)∧(p∧q∧s→r)∧p is a contradiction without using truth table

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