Exercise logic.propositional.consequence

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

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

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Environment

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

Path 1

path[0, 0, 4, 0, 0, 3, 0, 0, 0, 0, 2, 0, 2, 0, 4, 3]
steps16
major rules1
active labels
  • consequence
  • demorgan

enter consequence, initial, navigator.down, navigator.down, enter cnf, exit cnf, navigator.up, navigator.up, navigator.downlast, enter cnf, check, navigator.down, navigator.right, check, enter demorgan, logic.propositional.demorganand