(2steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: card nsub0 union 2 1

1. A : Type
  (0+A) ~ A


By: BackThru: Thm*  (0+A) ~ A


Generated subgoals:

None

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

(2steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc