(5steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc
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At: surjection type nsub surjection 1 2

1. a : 
2. b : 
3. a onto b
  b Discrete


By: Def


Generated subgoals:

None

About:
natural_number
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(5steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc