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