return-class(x) ==  
es,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:
x.A[x], 
single-bag: {x}, 
empty-bag: {}
Definitions : 
lambda:
x.A[x], 
ifthenelse: if b then t else f fi , 
es-first: first(e), 
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:
2011_08_16-AM-11_33_10
Last ObjectModification:
2011_01_17-AM-11_37_23
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