Exercise logic.propositional.consequence
Description
Prove that formula is a logical consequence of a set of formulas
Firsts
Rule consequence.enter Location [] Term "Just (TList [TList [TCon logic1.equivalent [TVar \"p\",TVar \"q\"],TCon logic1.not [TVar \"p\"]],TCon logic1.not [TVar \"q\"]])" Focus "Just (TList [TList [TCon logic1.equivalent [TVar \"p\",TVar \"q\"],TCon logic1.not [TVar \"p\"]],TCon logic1.not [TVar \"q\"]])" Environment