Nuprl - Proof: one one corr fams if bij A 1 1 1 2 1

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At: one one corr fams if bij A 1 1 1 2 1

1. A : Type
2. A' : Type
3. A

Type
4. g : A'

A
5. Bij(A'; A; g)
6. f : A

A'
7. InvFuns(A';A;g;f)

InvFuns(A;A';f;g)

By:	BackThru: Thm* InvFuns(A;B;f;g) InvFuns(B;A;g;f)

Generated subgoals:

None

About:

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