The Non-Monotonic NonFregean Logic Cover Image

Niemonotoniczna logika niefregowska
The Non-Monotonic NonFregean Logic

Author(s): Anna Wójtowicz
Subject(s): Philosophy
Published by: Uniwersytet Warszawski - Wydział Filozofii i Socjologii, Instytut Filozofii
Keywords: nonFregean logic; theory of meaning; non-monotonic logic

Summary/Abstract: NonFregean logic is the classical logic enriched by identity connective. In one of possible interpretations of this calculus, the identity connective joins two sentences into a true sentence when these sentences have the same meaning. But when (if any) do simple sentences (i.e. sentences not containing logical constants) have the same meaning? In the paper the non-monotonic version of nonFregean logic is presented. The starting point of every reasoning in this logic is that all simple sentences have the same meaning. This assumption may be retracted in order to maintain consistency with a new piece of information.

  • Issue Year: 19/2011
  • Issue No: 2 (74)
  • Page Range: 105-114
  • Page Count: 10
  • Language: Polish