Definitions EventSystems Sections NuprlLIB Doc
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discrete_structDef DS(A) == sort:ATypea:AEqDecider(sort(a))
deqDef EqDecider(T) == eq:TTx,y:Tx = y  (eq(x,y))
Thm* T:Type. EqDecider(T Type
assertDef b == if b True else False fi
Thm* b:b  Prop
iffDef P  Q == (P  Q) & (P  Q)
Thm* A,B:Prop. (A  B Prop
rev_impliesDef P  Q == Q  P
Thm* A,B:Prop. (A  B Prop

Syntax:DS(A) has structure: discrete_struct{i:l}(A)

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IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html

Definitions EventSystems Sections NuprlLIB Doc