Nuprl Definition : fpf-cap 0,22

f(x)?z == if x  dom(f) f(x) else z fi 
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clarification:

fpf-cap(f;eq;x;z) == if fpf-dom(eqxf) fpf-ap(feqx) else z fi 
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Definitionsf(x), x  dom(f), if b t else f fi
FDL editor aliasesfpf-cap

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