i}(x) == if i=
0
x else f(f{i-1}(x)) fi (recursive)
f:(A
A), i:
. f{i} 
AAA:Type. Id AAa1,a2:A. f(a1) = f(a2) B 
a1 = a2A,B:Type, f:(AB). Inj(A; B; f) Prop| Some definitions of interest. | |
| compose_iter | i}(x) == if i=0 x else f(f{i-1}(x)) fi (recursive) |
| f:(AA), i:. f{i} AA | |
| identity | |
| A:Type. Id AA | |
| inject | a1,a2:A. f(a1) = f(a2) B a1 = a2 |
| A,B:Type, f:(AB). Inj(A; B; f) Prop |
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