Exercise logic.propositional.consequence

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

(~p -> ~q) /\ q => p
ready: no

Feedback

Environment

initial=TList [TCon logic1.implies [TCon logic1.not [TVar "p"],TCon logic1.not [TVar "q"]],TVar "q"]

Path 1

path[0, 0, 0]
steps3
major rules1
active labels
  • consequence

enter consequence, initial, conj-intro