Nuprl - Proof: nsub delete 1 2

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At: nsub delete 1 2

1. k :

2. j :

k
3. m :

4. m = k-1
5. (

i.if i<

i else i-1 fi)

{i:

i = j }

(

i.if i<

i else i+1 fi)

{i:

i = j }

By:

Analyze

Generated subgoal:

1 6. i : m
if i<j i else i+1 fi {i:k| i = j }
1 step

About:

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