Nuprl - Proof: nsub inj exteq nsub surj 1 1 1

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At: nsub inj exteq nsub surj 1 1 1

1. k :

2. f :

k inj

k
3. f

k
4. Inj(

k; f)

k onto

By:

Analyze

Generated subgoal:

1 Surj(k; k; f)
17 steps

About:

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