Exercise logic.propositional.consequence
Description
Prove that formula is a logical consequence of a set of formulas
Firsts
Rule logic.propositional.notnot Location [0,0,0,0] Term "Just (TList [TList [TCon logic1.and [TCon logic1.or [TVar \"p\",TCon logic1.not [TVar \"q\"]],TVar \"q\"]],TVar \"p\"])" Focus "Just (TVar \"p\")" Environment