Trifree Objects in E-Varieties of Locally E-Solid Semigroups

نویسندگان

  • T. E. Hall
  • Y. T. Yeh
چکیده

We construct a modification of Churchill and Trotter’s trifree objects in e-varieties of locally E-solid semigroups, which have the property, for e-varieties of locally inverse semigroups and for e-varieties of Esolid semigroups, of being isomorphic to the bifree objects.

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تاریخ انتشار 2001