DiscreteMath Sections DiscrMathExt Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
RankTheoremName
10Thm*  (k inj k) ~ (k!)[nsub_inj_factorial]
cites the following:
9Thm*  (a inj b) ~ (b!a)[nsub_inj_factorial_tail]
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
DiscreteMath Sections DiscrMathExt Doc