(9steps total) Remark PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc
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At: least exists2 1 1 2 1 1 1

1. P : Prop
2. i:P(i)
3. p : 
4. i:p(i P(i)
5. (least i:p(i))  {i:p(i) & (j:j<i  p(j)) }
6. u : 
7. p(u) & (j:j<u  p(j))
  P(u) & (j:j<u  P(j))


By: Rewrite by Hyp:4


Generated subgoals:

None

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

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