(9steps total) PrintForm Definitions Lemmas num thy 1 Sections StandardLIB Search Doc
IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: divides anti sym n 1
1. a : 
2. b : 
3. a | b
4. b | a
  a = b
By: Decide (a = 0)

Generated subgoals:

1 5. a = 0
  a = b
2 steps
2 5. a = 0
  a = b
5 steps

About:
intnatural_numberequal
IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html

(9steps total) PrintForm Definitions Lemmas num thy 1 Sections StandardLIB Search Doc