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, 0, 1, 4, 4, 1] |
steps | 18 |
major rules | 2 |
active labels | |
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,
exit eliminateimplequiv,
check,
enter demorgan,
navigator.down,
logic.propositional.demorganor