IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
decidable rset equal R:(Id), x,y:|R|. Dec(x = y)
By:
Unfold `rset` 0 THEN Analyze -2 THEN Analyze -1 THEN Assert Dec(x = y)
THEN
RepeatFor 2 (ParallelOp -1)
THEN
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