Nuprl Lemma : assert_of_bnot 9,38

p:. ((p))  ((p)) 
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ProofTree


Definitionst  T, P  Q, P  Q, x:AB(x), ff, if b then t else f fi , tt, A, b, b, P  Q, , True, P  Q, False, Unit, ,
Lemmasbool wf, true wf, false wf

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