Exercise

Exercise logic.propositional.consequence

Description
Prove that formula is a logical consequence of a set of formulas

p <-> r, q <-> s => (p /\ q /\ r /\ s /\ ((p /\ q /\ r /\ s) || ~r || ~s)) || (~(p /\ q) /\ ((p /\ q /\ r /\ s) || ~r || ~s))

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Feedback

initial=TList [TCon logic1.equivalent [TVar "p",TVar "r"],TCon logic1.equivalent [TVar "q",TVar "s"]]

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