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Partial algebras and implications of (weak) matrix properties
Michael Hoefnagel, Pierre-Alain Jacqmin
Matrix properties are a type of property of categories which includes the ones of being Mal'tsev, arithmetical, majority, unital, strongly unital and subtractive. Recently, an algo…
A syntactic characterization of weakly Mal'tsev varieties
Nadja Egner, Pierre-Alain Jacqmin, Nelson Martins-Ferreira
The notion of a weakly Mal'tsev category, as it was introduced in 2008 by the third author, is a generalization of the classical notion of a Mal'tsev category. It is well-known tha…
A note on the atomicity of arithmeticity
Michael Hoefnagel, Pierre-Alain Jacqmin
The main aim of this note is to show that, in the regular context, every matrix property in the sense of Z. Janelidze either implies the Mal'tsev property, or is implied by the maj…