IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
select-map f:Top, T:Type, L:T List, i:||L||. map(f;L)[i] ~ (f(L[i]))
By:
InductionOnList THEN Reduce 0 THEN Analyze 0
Generated subgoals:
1
1. f : Top
2. T : Type
3. T List
4. i : 0
nil[i] ~ (f(nil[i]))