Nuprl - Proof: sum exponent

IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: sum exponent

, x,y:

. i

y = i

(x+y)

By:

Analyze

Generated subgoal:

1 1. i :
x,y:. ixiy = i(x+y)
6 steps

About:

IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html