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Contraction based on sentential selection
KTH, School of Architecture and the Built Environment (ABE), Philosophy.ORCID iD: 0000-0003-0071-3919
2007 (English)In: Journal of logic and computation (Print), ISSN 0955-792X, E-ISSN 1465-363X, Vol. 17, no 3, 479-498 p.Article in journal (Refereed) Published
Abstract [en]

The properties of full meet contraction are investigated, and it is shown to be a useful building-block in the construction of composite contraction operators. This is followed by a detailed investigation of specified meet contraction, i.e. the operation divided by such that K divided by p = K similar to f(p), where similar to is full meet contraction and f is a function from sentences to sentences. A number of realistic examples of belief contraction are discussed, and it is shown how the properties of contraction differ according to how the sentence to be contracted is situated in the structure of the belief state. Some plausible properties of f are proposed, and it is shown how they correspond to properties of the contraction operator.

Place, publisher, year, edition, pages
2007. Vol. 17, no 3, 479-498 p.
Keyword [en]
belief change, partial meet contraction, full meet contraction, specified meet contraction, sentential selector, recovery, eradication, eradicative reconstruction, revision functions, logic
Identifiers
URN: urn:nbn:se:kth:diva-16763DOI: 10.1093/logcom/exm010ISI: 000247814900003Scopus ID: 2-s2.0-77349124523OAI: oai:DiVA.org:kth-16763DiVA: diva2:334806
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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