IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
int segs from base by upper ind121 1. P : Prop
2. a : 3. b:{...a}. P(a,b)
4. b:{a+1...}. (c:{a..b}. P(a,c)) P(a,b)
5. b:{a...}. P(a,b)
6. b : 7. ba P(a,b)
By:
BackThru: Hyp:3
Generated subgoals:
None
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
b:{...a}. P(a,b)
}. P(a,c)) 
P(a,b)
a
P(a,b)
