Nuprl Definition : ifthenelse 13,42

if b then t else f fi  == case b of inl() => t | inr() => f 
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Upbool 1, bool 1
Wellformedness Lemmasifthenelse wf, ifthenelse wf
Definitionscase b of inl(x) => s(x) | inr(y) => t(y)
FDL editor aliasesifthenelse

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