Definitions NuprlPrimitives Sections NuprlLIB Doc
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Some definitions of interest.
sfa_doc_exteqDef A =ext B == (X:AX  B) & (X:BX  A)
sfa_doc_sexprDef Sexpr(A) == rec(T.(TT)+A)
Thm* A:Type. Sexpr(A Type

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productunionrecsfa_doc_extequniversememberandall!abstraction
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Definitions NuprlPrimitives Sections NuprlLIB Doc