(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

1. x : 
2. x1:x1<x  x1 
3. x  0
  x(x-1)!  


By: BackThru: Thm* i,j:ij  


Generated subgoals:

1   x  
Trivial
2   (x-1)!  
1 step

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

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