Exercise logic.propositional.consequence

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

~p || (q /\ r) => (p /\ q /\ p /\ r) || (~(p /\ q) /\ ~(p /\ r))
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Environment

initial=TList [TCon logic1.implies [TVar "p",TCon logic1.and [TVar "q",TVar "r"]]]

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