(9steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: card prod family intseg singleton elim 1 2 1

1. a : 
2. a' : 
3. a'-a = 1
4. {a..a'}Type
5. a  {a:}
6. x : {a:}
  x  {a..a'}


By: BackThru: Thm*  a,a':a'-a = 1  ({a..a'} =ext {a:})


Generated subgoals:

None

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

(9steps total) PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc