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Universal inclusion structures. (English) Zbl 0483.08001
Universal algebra, Proc. Colloq., Esztergom/Hung. 1977, Colloq. Math. Soc. Janos Bolyai 29, 625-633 (1982).

MSC:
08A02 Relational systems, laws of composition
08A40 Operations and polynomials in algebraic structures, primal algebras
03B50 Many-valued logic
12K10 Semifields
65G30 Interval and finite arithmetic