Nuprl Lemma : logic5

[P:]. (P  (P))


Proof




Definitions occuring in Statement :  uall: [x:A]. B[x] prop: not: A implies: P  Q
Definitions :  implies: P  Q member: t  T not: A prop:
Lemmas :  false_wf
\mforall{}[P:\mBbbP{}].  (P  {}\mRightarrow{}  (\mneg{}\mneg{}P))


Date html generated: 2013_09_05-AM-11_12_36
Last ObjectModification: 2013_06_03-AM-11_46_51

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