(15steps total) PrintForm Definitions DiscreteMath Sections DiscrMathExt Doc
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At: decidable vs unique nsub2

  P:Prop. Dec(P (!i:2. if i=0 P else P fi)

By: UnivCD


Generated subgoal:

1 1. P : Prop
  Dec(P (!i:2. if i=0 P else P fi)

14 steps

About:
ifthenelsenatural_numberpropall
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(15steps total) PrintForm Definitions DiscreteMath Sections DiscrMathExt Doc