(10steps total) PrintForm Definitions Lemmas num thy 1 Sections StandardLIB Doc
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At: decidable divides 1 1 1
1. a : 
2. b : 
3. a = 0
4. b = 0
  a | b  a | b
By: (DNth 1 0) THEN (HypSubst 3 0) THEN (HypSubst 4 0)
THEN
(BackThru Thm* a:. a | a)

Generated subgoals:

None

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

(10steps total) PrintForm Definitions Lemmas num thy 1 Sections StandardLIB Doc