Extensions of ordered semigroups. (English) Zbl 0225.06006


06F05 Ordered semigroups and monoids
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[1] Clifford, A.H. and G.B. Preston,The Algebraic theory of semigroups, Vol. 1, Survey 7, Amer. Math. Soc., Providence, R.I., 1961 · Zbl 0111.03403
[2] Hulin, A.J.,Extensions of ordered semigroups, Dissertation, Tulane Univ., 1970.
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