On the variety question for wRRA

• Autores: Jeremy F. Alm
• Localización: Algebra universalis, ISSN 0002-5240, Vol. 57, Nº. 2, 2007, págs. 195-206
• Idioma: inglés
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• Resumen

  • In this paper we consider a question of Jónsson [6] whether the class of weakly representable relation algebras is a variety. We prove that the class is closed under taking homomorphic images provided that a certain embedding condition obtains.