DData revision (isSubsetOf / shorter names)

Christian Maeder maeder at tzi.de
Wed Mar 17 12:24:53 EST 2004

Daan Leijen wrote:
>>> I vote for consistently using isXXXX for predicates.
>> this would (only) affect "null" (maybe "isEmpty" again) and "member".
> So it is agreed: we use "isXXXX" :-)

does "isIn" meet someone's taste for "member" then? (I would not like 


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