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The Weak Variable Sharing Property
The Weak Variable Sharing Property

Author(s): Tore Fjetland Øgaard
Subject(s): Logic
Published by: Wydawnictwo Uniwersytetu Łódzkiego
Keywords: characteristic matrix; relevant logics; variable sharing properties

Summary/Abstract: An algebraic type of structure is shown forth which is such that if it is a characteristic matrix for a logic, then that logic satisfies Meyer's weak variable sharing property. As a corollary, it is shown that RM and all its odd-valued extensions \(\mathbf{RM}_{2n\mathord{-}1}\) satisfy the weak variable sharing property. It is also shown that a proof to the effect that the "fuzzy" version of the relevant logic R satisfies the property is incorrect.

  • Issue Year: 52/2023
  • Issue No: 1
  • Page Range: 85-99
  • Page Count: 15
  • Language: English
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