Exercise logic.propositional.consequence

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

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

Feedback

Environment

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

Path 1

path[0, 0, 4, 0, 0, 3, 0, 0, 0, 0, 2, 0, 0, 3, 0]
steps15
major rules1
active labels
  • consequence
  • eliminateimplequiv

enter consequence, initial, navigator.down, navigator.down, enter cnf, exit cnf, navigator.up, navigator.up, navigator.downlast, enter cnf, check, navigator.down, check, enter eliminateimplequiv, logic.propositional.defimpl