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At: one one preser fin 1 1 1 1 1 1 1

1. T: Type
2. S: Type
3. n:
4. f: nT
5. Bij(n; T; f)
6. f1: TS
7. g: ST
8. g o f1 = Id
9. f1 o g = Id
10. a1: n

a2:n. (f1 o f)(a1) = (f1 o f)(a2) a1 = a2

By: UnivCD

Generated subgoal:

111. a2: n
12. (f1 o f)(a1) = (f1 o f)(a2)
a1 = a2


About:
allnatural_numberimpliesequalapplyuniversefunction