Exercise logic.propositional.consequence

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

~q => ~(p || q) || p
ready: no

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Environment

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

Path 1

path[0, 0, 4, 0, 0, 3, 0, 0, 0, 0, 1, 3, 0]
steps13
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, enter eliminateimplequiv, logic.propositional.defimpl