Geodesic
Locicaly separable algebras in varieties of algebras
Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, no. 2 (2007), pp. 33-42.

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Let Θ be an arbitrary variety of algebras and H be an algebra in Θ. Along with algebraic geometry in Θ over the distinguished algebra H we consider logical geometry in Θ over H. This insight leads to a system of notions and stimulates a number of new problems. We introduce a notion of logically separable in Θ algebras and consider it in the frames of logically-geometrical relations between different H1 and H2 in Θ. The paper is aimed to give a flavor of a rather new subject in a short and concentrated manner. 
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B. Plotkin. Locicaly separable algebras in varieties of algebras. Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, no. 2 (2007), pp. 33-42. https://geodesic-test.mathdoc.fr/item/BASM_2007_2_a3/

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