(9steps total) Remark PrintForm Definitions Lemmas DiscreteMath Sections DiscrMathExt Doc
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At: least exists2 1 1 1
1. P : Prop
2. i:. P(i)
3. p : 
4. i:. p(i)  P(i)
  p  {p:()| i:. p(i) }
By: Analyze

Generated subgoal:

1   i:. p(i)
1 step

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