(2steps total) PrintForm Definitions Lemmas num thy 1 Sections StandardLIB Doc
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At: assoced elim 1

1. a : 
2. b : 
  a | b & b | a  a = b  a = -b


By: (RWH (LemmaC Thm* a,b:a | b & b | a  a =  b) 0)
THEN
(Unfold `pm_equal` 0)


Generated subgoals:

None

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

(2steps total) PrintForm Definitions Lemmas num thy 1 Sections StandardLIB Doc