(6steps total) Remark PfGloss PrintForm Definitions DiscreteMath Sections DiscrMathExt Doc
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At: finite inj counter example 1 1 1 1

1. m : 
2. f : m
3. Inj(mf)
4. (x:my:xf(x) = f(y))
5. a1 : m
6. a2 : m
7. f(a1) = f(a2)
8. a1<a2
  x:my:xf(x) = f(y)


By: Witness: a2 THEN Witness: a1


Generated subgoals:

None

About:
intnatural_numberless_thanapplyfunctionequalexists
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(6steps total) Remark PfGloss PrintForm Definitions DiscreteMath Sections DiscrMathExt Doc