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Unifiability and Structural Completeness in Relation Algebras and in Products of Modal Logic S5
(Wydawnictwo Uniwersytetu Łódzkiego, 2015)
Unifiability of terms (and formulas) and structural completeness in the variety of relation algebras RA and in the products of modal logic S5 is investigated. Nonunifiable terms (formulas) which are satisfiable in varieties ...