At: quotient 1 1 corr 1 1 1 5 2
1. A: Type
2. B: Type
3. f: A
B
4. R: B
B
Prop
5. Bij(A; B; f)
6. EquivRel x,y:B. x R y
7. EquivRel x,y:A. x R_f y
8. g: B
A
9. InvFuns(A; B; f; g)
10. F: (x,y:A//(x R_f y))
(x,y:B//(x R y))
11. F = (
x.f(x))
12. G: (x,y:B//(x R y))
(x,y:A//(x R_f y))
13. G = g
(x,y:B//(x R y))
(x,y:A//(x R_f y))
14. Bij(x,y:A//(x R_f y); x,y:B//(x R y); F)
F:((x,y:A//(x R_f y))
(x,y:B//(x R y))). Bij(x,y:A//(x R_f y); x,y:B//(x R y); F)
By: InstConcl [F]
Generated subgoals:None
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