Nuprl - Proof: compose iter inj cycles 1 1 1 1 1

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At: compose iter inj cycles 1 1 1 1 1

1. k :

2. f :

k
3. Inj(

k; f)
4. u :

k
5.

x,y:

(k+1). x

y & f{

x}(u) = f{

y}(u)

i,j:

(k+1). i<j & f{

i}(u) = f{

j}(u)

By:	ExistHD Hyp:5

Generated subgoal:

1 5. x : (k+1)
6. y : (k+1)
7. x y
8. f{x}(u) = f{y}(u)
i,j:(k+1). i<j & f{i}(u) = f{j}(u)
3 steps

About:

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html