Nuprl Definition : alive 11,40

alive(X) == (X|fail-dcdr{i:l}(es;Fail)) 
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clarification:

alive{i:l}(esFailX) == (X|fail-dcdr{i:l}(esFail)) 
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Definitions(I|p), fail-dcdr{i:l}(es;Fail)
FDL editor aliasesalive

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