Logics Admitting Final Semantics

  • Authors:
  • Alexander Kurz

  • Affiliations:
  • -

  • Venue:
  • FoSSaCS '02 Proceedings of the 5th International Conference on Foundations of Software Science and Computation Structures
  • Year:
  • 2002

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Abstract

A logic for coalgebras is said to admit final semantics iff-- up to some technical requirements--all definable classes contain a fully abstract final coalgebra. It is shown that a logic admits final semantics iff the formulas of the logic are preserved under coproducts (disjoint unions) and quotients (homomorphicimages).