Browsing by Author "Hall, T.E."

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    Trifee objects in e-varieties of locally e-solid semigroups
    (Massey University, 2001) Hall, T.E.; Yeh, Y.T.
    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.