IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
non neg sum n:, f:(n). (x:n. 0f(x)) 0sum(f(x) | x < n)
By:
SumInd
Generated subgoals:
None
About:
IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html
n:
, f:(
). (
f(x)) 
0
