(11steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc
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At: absurd nonfin imp unb inf 1 2
1. D : Type
2. (D)
3. Unbounded(D)
  D
By: Witness3: 1

Generated subgoal:

1 4. (1 inj D)
  D
2 steps

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(11steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc