IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
sum switch122121 1. n : 2. f : n 3. i : (n-1)
4. (i, i+1) nn sum(f((i, i+1)(x+i)) | x < 2) = sum(f(x+i) | x < 2)
By:
Unfold `sum` 0 THEN RecUnfold `primrec` 0 THEN Reduce 0 THEN Unfold `flip` 0
THEN
Reduce 0
THEN
Repeat SplitOnConclITE
Generated subgoals:
None
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
sum(f((i, i+1)(x+i)) | x < 2) = sum(f(x+i) | x < 2)
