Definitions mb nat Sections MarkB generic Doc
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Some definitions of interest.
bijectDef Bij(ABf) == Inj(ABf) & Surj(ABf)
Thm* A,B:Type, f:(AB). Bij(ABf Prop
int_segDef {i..j} == {k:i  k < j }
Thm* m,n:. {m..n Type
natDef  == {i:| 0i }
Thm*   Type

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memberpropandall!abstraction
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Definitions mb nat Sections MarkB generic Doc