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Equations implying congruence n-permutability and semidistributivity

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Title:Equations implying congruence n-permutability and semidistributivity
Authors:Freese, Ralph
Keywords:n-permutability, semidistributivity, congruence lattice
Date Issued:08 Feb 2013
Abstract:T. Dent, K. Kearnes and A. Szendrei de ne the derivative, 0, of a
set of equations and show, for idempotent , that implies congruence modularity
if 0 is inconsistent ( 0 j= x y). In this paper we investigate other types of
derivatives that give similar results for congruence n-permutable for some n, and for
congruence semidistributivity.
Rights:Attribution-NonCommercial-NoDerivs 3.0 United States
Appears in Collections: Ralph Freese
Freese, Ralph

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