Epimorphism between Fine and Ferguson’s Matrices for Angell’s AC

Logic and Logical Philosophy 32 (2):161-179 (2023)
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Abstract

Angell's logic of analytic containment AC has been shown to be characterized by a 9-valued matrix NC by Ferguson, and by a 16-valued matrix by Fine. We show that the former is the image of a surjective homomorphism from the latter, i.e., an epimorphic image. The epimorphism was found with the help of MUltlog, which also provides a tableau calculus for NC extended by quantifiers that generalize conjunction and disjunction.

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Author's Profile

Richard Zach
University of Calgary

Citations of this work

First-Degree Entailment and Truthmaker Functions.Roderick Batchelor - 2024 - Journal of Philosophical Logic 53 (2):373-390.

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References found in this work

Angellic Content.Kit Fine - 2016 - Journal of Philosophical Logic 45 (2):199-226.
Theory of Logical Calculi: Basic Theory of Consequence Operations.Ryszard Wójcicki - 1988 - Dordrecht, Boston and London: Kluwer Academic Publishers.
Faulty Belnap Computers and Subsystems of FDE.Thomas Macaulay Ferguson - 2016 - Journal of Logic and Computation 26 (5):1617–1636.
Proof Theory of Finite-valued Logics.Richard Zach - 1993 - Dissertation, Technische Universität Wien

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