Bill Page <bill.p...@newsynthesis.org> writes:

|          This is not so different than considering the CardinalNumber
| domain as an extension of NonNegativeInteger.  CardinalNumber is not
| used much in FriCAS except as the domain of the operation 'dimension'
| (of VectorSpace, etc.) however it includes a value of Aleph(0) for
| infinite cardinality. 

I have always considered it a weakness that VectorSpace did not use
CardinalNumber for dimension -- even if for all practical purposes
NonNegativeInteger is sufficient and more efficient.  That, in my
opinion, calls for an efficient abstraction, e.g. find a way to
support CardinalNumber and make the common cases as efficient as
NonNegativeInteger.

(please don't mention `subsumption', I don't want to go there.)

-- Gaby

------------------------------------------------------------------------------
Enable your software for Intel(R) Active Management Technology to meet the
growing manageability and security demands of your customers. Businesses
are taking advantage of Intel(R) vPro (TM) technology - will your software 
be a part of the solution? Download the Intel(R) Manageability Checker 
today! http://p.sf.net/sfu/intel-dev2devmar
_______________________________________________
open-axiom-devel mailing list
open-axiom-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/open-axiom-devel

Reply via email to