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math.CT2023
Ideals and Congruences in L-algebras and Pre-L-algebras
Alberto Facchini, Marino Gran, Mara Pompili
We link the recent theory of -algebras to previous notions of Universal Algebra and Categorical Algebra concerning subtractive varieties, commutators, multiplicative lattices, a…
math.CT2023
Central extensions of preordered groups
Marino Gran, Aline Michel
We prove that the category of preordered groups contains two full reflective subcategories that give rise to some interesting Galois theories. The first one is the category of the…