Nuprl - Proof: count pairs swap 1 1 1 1 1 1

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At: count pairs swap 1 1 1 1 1 1

1. T : Type
2. L : T List
3. T

4. n :

(||L||-1)
5. (n, n+1)

||L||

||L||
6. ||swap(L;n;n+1)|| = ||L||
7. f :

||L||

||L||
8.

||L||. f(i) = (n, n+1)(i)

Bij(

||L||;

||L||; f)

By:	Subst (f = (n, n+1)) 0

Generated subgoals:

1 f = (n, n+1)
1 step

2 Bij(||L||; ||L||; (n, n+1))
1 step

About:

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