Definitions NuprlPrimitives Sections NuprlLIB Doc
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Some definitions of interest.
natDef  == {i:| 0i }
Thm*   Type
nat_plusDef  == {i:| 0<i }
Thm*   Type
subtypeDef S  T == x:Sx  T

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intnatural_numberless_thansetuniversemembersubtypeall!abstraction
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Definitions NuprlPrimitives Sections NuprlLIB Doc