(2steps total) PrintForm Definitions hol arithmetic 1 Sections HOLlib Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: fact zero 1
1. True
  0fact(0-1) = 1  
By: Analyze -1

Generated subgoals:

None

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

(2steps total) PrintForm Definitions hol arithmetic 1 Sections HOLlib Doc