At: list quo choice pls 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1
1. q: 

2. E:
q*

q*
Prop
3. EquivRel x,y:
q*. x E y
4.
x,y:
q*. Dec(x E y)
5. f:
q*


6. g: 


q*
7. g o f = Id
8. f o g = Id
9. h: 



10.
n,k:
. ((g(n)) E (g(k))) 
h(n) = h(k)
11.
n:
. (g(n)) E (g(h(n)))
12. x:
q*
13. y:
q*
14. (x E y) 
h(f(x)) = h(f(y))
15. h(f(x)) = h(f(y))
g(h(f(x))) = g(h(f(y)))
By: RWH (HypC 15) 0
Generated subgoals:None
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