Nuprl Definition : f2f+-p+ 11,40

f2f+-p+ == e',e. f2f+-pred(e',e)^+ 
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clarification:

f2f+-p+{i:l}
f2f+-p+(es; ff; f2f+; sndr; rcvr)
== rel_plus(es-E(es); (e',e. f2f+-pred{i:l}(es; ff; f2f+; sndr; rcvr; e'; e))) 
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DefinitionsR^+, E, x.A(x), f2f+-pred(e',e)
FDL editor aliasesf2f+-p+

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