• Title of article

    Not all Epimorphisms are Surjective in the Class of Diagonal Cylindric Algebras

  • Author/Authors

    Ahmed ، Tarek Sayed - Cairo University

  • Pages
    11
  • From page
    198
  • To page
    208
  • Abstract
    Let α be an infinite ordinal. We show that not all epimorphisms are surjective in the class Diα of diagonal cylindric algebras (regarded as a concrete category). It follows that Diα does not have the strong amalgamation property. This answers a question of Pigozzi.
  • Keywords
    Algebraic logic , amalgmation property , cylindric algebras , di , agonal algebras
  • Journal title
    General Mathematics Notes
  • Serial Year
    2011
  • Journal title
    General Mathematics Notes
  • Record number

    2457350