Normative systems and their revision: an algebraic approach

Lars Lindahl, Jan Odelstad

Research output: Contribution to journalArticlepeer-review


The paper discusses normative systems and their revision within an algebraic framework. If a system is logically well-formed, certain norms, called connecting norms, determine the system as a whole. It is maintained that, if the system is well-formed, a relation at least as low as determines a lattice or quasi-lattice of its connecting norms. The ideas are presented mainly in the form of comments on a legal example concerning acquisition of movable property by extinction of another person's previous rights.
Original languageEnglish
Pages (from-to)81-104
JournalArtificial Intelligence and Law
Publication statusPublished - 2003

Subject classification (UKÄ)

  • Law


  • normative system
  • organic whole.
  • Alchourrón
  • boolean quasi-ordering
  • Bulygin
  • connecting norm
  • norm revision
  • defeasibility
  • jurisprudence
  • allmän rättslära

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