Nuprl - Proof: select cons hd 1

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At: select cons hd 1

1. T : Type
2. a : T
3. as : T List
4. i :

5. i

hd(nth_tl(i;a.as)) = a

By:	AbReduce 0

Generated subgoal:

1 hd(nth_tl(i;a.as)) = a
2 steps

About:

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