Dunn JonMichael

American philosopher whose research focuses on information based logics, particularly relevance logics and other so-called "substructural" logics. He has an algebraic approach to these under the heading of "gaggle theory" (for generalized galois logics), which he has developed in articles, his book with G. Hardgree Algebraic Methods in Philosophical Logic (Oxford, 2001), and a book with Katalin Bimbó, Generalized Galois Logics: Relational Semantics of Nonclassical Logical Calculi (CSLI Publications, 2008). J. Michael Dunn was married with two children. He died on 5 April 2021 at age 79. Link to Wikipedia biography Read less