Expressivity of Logics of Knowledge and Action

Bouke Kuijer

Research output: ThesisThesis fully internal (DIV)

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Abstract

Consider two languages, say, English and Dutch. It is possible to translate between these languages, so if I take an English sentence I can find a Dutch sentence with the same meaning and if I take a Dutch sentence I can find an English sentence with the same meaning.
Logics are formal languages, and therefore also languages. This means that if we take two logics L_1 and L_2 we can try to translate from L_1 to L_2. But unlike with natural languages (like English and Dutch) it is sometimes impossible to translate from one logic to another.
If it is possible to translate from L_1 to L_2 and impossible to translate from L_2 to L_1 we say that L_2 is more expressive than L_1. If it is possible to translate from L_1 to L_2 and also possible to translate from L_2 to L_1 we say that L_1 and L_2 are equally expressive.
In this thesis we look at a number of logics and determine which ones are the most expressive. Specifically, we look at the logics L_CP, L_CPS, L_R, L_CPU and L_U*. We conclude that L_CPS is more expressive than L_CP, that L_U* is more expressive than L_R and that L_CPU and L_U* are equally expressive.
Translated title of the contributionExpressivity of Logics of Knowledge and Action
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • University of Groningen
Supervisors/Advisors
  • Kooi, Barteld, Supervisor
  • Tamminga, Allard, Co-supervisor
Award date11-Dec-2014
Place of Publication[S.l.]
Publisher
Print ISBNs978-90-367-7434-5
Electronic ISBNs978-90-367-7433-8
Publication statusPublished - 2014

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