Exercise logic.propositional.consequence
Description
Prove that formula is a logical consequence of a set of formulas
Firsts
Rule conj-intro Location [] Term "Just (TList [TList [TCon logic1.and [TCon logic1.equivalent [TVar \"p\",TVar \"r\"],TCon logic1.equivalent [TVar \"q\",TVar \"s\"]]],TCon logic1.equivalent [TCon logic1.or [TVar \"p\",TVar \"q\"],TCon logic1.or [TVar \"r\",TVar \"s\"]]])" Focus "Just (TList [TList [TCon logic1.and [TCon logic1.equivalent [TVar \"p\",TVar \"r\"],TCon logic1.equivalent [TVar \"q\",TVar \"s\"]]],TCon logic1.equivalent [TCon logic1.or [TVar \"p\",TVar \"q\"],TCon logic1.or [TVar \"r\",TVar \"s\"]]])" Environment