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## Re: [ontolog-forum] Universal Basic Semantic Structures

 To: "[ontolog-forum]" Matthew West Fri, 28 Sep 2012 11:45:04 +0100
 Dear Avril, I do not see set theory and mereology as alternatives that you choose one from for your ontology, rather I see them as being appropriate in different circumstances. One of the tests I use to determine which is appropriate is whether I am or could be interested in the weight of the collection. Sets are abstract and so do not have a weight. A mereological sum on the other hand does. For example, if I am looking at the collection of cars sold under a particular brand and model, then I would see that as a set, because the weight I want to associate with the collection is the nominal weight of each member of the model. On the other hand if I am looking at a collection of cars on a scrap heap, then I am interested in the mereological sum, because I want to know about the weight of the whole collection. Regards Matthew On Sep 28, 2012 11:04 AM, "Avril Styrman" wrote: Lainaus "John F Sowa" : > Before criticizing mereology, I want to say that I consider it > a useful alternative to set theory for many aspects of ontology. I fully agree that e.g. as a definition of a flat part, mereology does all that is required, in a simpler way than set theory, and thus is better than set theory. Also, as a definition of what is continuous, continuous mereology is a lot simpler than set theory which can be used as a foundation continuous point-sets, and thus mereology is better. A better question is that why do we need 'continuity' in the first place in modeling finite and discrete phenomena? Apart from all this, set theory is not all bad. When we take transfinities and the empty set away, the empirically applicable 'structural' features are revealed: set theory can be used in modeling granular structures that are found all around in nature. If mereology is used in modeling granular structures, then mereology will in any case have to be complemented with the epsilon/memberOf relation, or with some corresponding relation that does the job of epsilon. -Avril _________________________________________________________________ Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/ Config Subscr: http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/ Unsubscribe: mailto:ontolog-forum-leave@xxxxxxxxxxxxxxxx Shared Files: http://ontolog.cim3.net/file/ Community Wiki: http://ontolog.cim3.net/wiki/ To join: http://ontolog.cim3.net/cgi-bin/wiki.pl?WikiHomePage#nid1J ``` _________________________________________________________________ Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/ Config Subscr: http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/ Unsubscribe: mailto:ontolog-forum-leave@xxxxxxxxxxxxxxxx Shared Files: http://ontolog.cim3.net/file/ Community Wiki: http://ontolog.cim3.net/wiki/ To join: http://ontolog.cim3.net/cgi-bin/wiki.pl?WikiHomePage#nid1J    (01) ```
 Current Thread Re: [ontolog-forum] Universal Basic Semantic Structures, (continued) Re: [ontolog-forum] Universal Basic Semantic Structures, John F Sowa Re: [ontolog-forum] Universal Basic Semantic Structures, Avril Styrman Re: [ontolog-forum] Universal Basic Semantic Structures, doug foxvog Re: [ontolog-forum] Universal Basic Semantic Structures, William Frank Re: [ontolog-forum] Universal Basic Semantic Structures, John F Sowa Re: [ontolog-forum] Universal Basic Semantic Structures, doug foxvog Re: [ontolog-forum] Universal Basic Semantic Structures, William Frank Re: [ontolog-forum] Universal Basic Semantic Structures, John F Sowa Re: [ontolog-forum] Universal Basic Semantic Structures, Chris Partridge Re: [ontolog-forum] Universal Basic Semantic Structures, Avril Styrman Re: [ontolog-forum] Universal Basic Semantic Structures, Matthew West <= Re: [ontolog-forum] Universal Basic Semantic Structures, doug foxvog Re: [ontolog-forum] Universal Basic Semantic Structures, doug foxvog Re: [ontolog-forum] Universal Basic Semantic Structures, Pat Hayes Re: [ontolog-forum] Universal Basic Semantic Structures, doug foxvog Re: [ontolog-forum] Universal Basic Semantic Structures, Rich Cooper Re: [ontolog-forum] Universal Basic Semantic Structures, Obrst, Leo J. Re: [ontolog-forum] Universal Basic Semantic Structures, doug foxvog Re: [ontolog-forum] Universal Basic Semantic Structures, Andries van Renssen Re: [ontolog-forum] Universal Basic Semantic Structures, John F Sowa Re: [ontolog-forum] Universal Basic Semantic Structures, David C. Hay