Exercise logic.propositional.consequence

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

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• (no onefirst)
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• allapplications
• derivation
• microsteps

Environment

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

Path 1

path	[0, 0, 4, 0, 0, 3, 0, 0, 0, 0, 2, 0, 2, 0, 3, 0]
steps	16
major rules	1
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, navigator.right, check, enter eliminateimplequiv, logic.propositional.defimpl