Nuprl Lemma : logic9
[P:]. ((P  (P))  (P)  P)
Proof
Error : references
\mforall{}[P:\mBbbP{}].  ((P  \mvee{}  (\mneg{}P))  {}\mRightarrow{}  (\mneg{}\mneg{}P)  {}\mRightarrow{}  P)
Date html generated:
2013_09_05-AM-11_13_00
Last ObjectModification:
2013_06_13-PM-03_56_49
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