(9steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc
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At: card sigma vs nsub sigma 1

1. b : 0
  (i:0b(i)) ~ ( i:0. b(i))


By: OOCinterpolate 0


Generated subgoals:

1   (i:0b(i)) ~ 0
2 steps
2   0 ~ ( i:0. b(i))
1 step

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(9steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc