mb list 2 Sections MarkB generic Doc
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TheoremName
Thm* P:(TProp). (xnil.P(x))  False[l_exists_nil]
cites the following:
Thm* x:T. (x  nil)  False[nil_member]
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
mb list 2 Sections MarkB generic Doc