(7steps total) PrintForm Definitions Lemmas NuprlPrimitives Sections NuprlLIB Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: sfa doc factorial wf 1 1 2 2
1. x : 
2. x1:. x1<x  x1!  
3. x  0
  (x-1)!  
By: BackThru: Hyp:2

Generated subgoals:

None

About:
intnatural_numbersubtractless_thanmemberimpliesall
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html

(7steps total) PrintForm Definitions Lemmas NuprlPrimitives Sections NuprlLIB Doc