IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
set functionality wrt one one corr n pred A:Type, B,B':(AProp).
(x:A. B(x) B'(x)) ({x:A| B(x) } ~ {x:A| B'(x) })
By:
Auto THEN Rewrite by Thm* {x:A| B(x) } ~ {x:A| B(x) }
THEN
BackThru: Thm* (x:A. B(x) B'(x)) ({x:A| B(x) } ~ {x:A| B'(x) })
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