Exercise logic.propositional.consequence

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

Derivation

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

⇒ fakeabsorptionnot, initial=TList [TCon logic1.and [TCon logic1.or [TCon logic1.not [TVar "p"],TVar "q"],TCon logic1.not [TVar "q"]]]

~p /\ ~q => ~p

⇒ conj-elim

~p => ~p