Nuprl Definition : return-class
return-class(x) ==  λes,e. if first(e) then {x} else {} fi 
Definitions occuring in Statement : 
es-first: first(e)
, 
ifthenelse: if b then t else f fi 
, 
lambda: λx.A[x]
, 
single-bag: {x}
, 
empty-bag: {}
FDL editor aliases : 
return-class
return-class(x)  ==    \mlambda{}es,e.  if  first(e)  then  \{x\}  else  \{\}  fi 
Date html generated:
2015_07_17-PM-00_43_10
Last ObjectModification:
2012_02_25-PM-01_20_16
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