Survey 1979: Equational Logic - Department of Mathematics ...
Survey 1979: Equational Logic - Department of Mathematics ...
Survey 1979: Equational Logic - Department of Mathematics ...
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WALTER TAYLOR 51<br />
17.10. For "identical inclusions" see e.g. [261]. An identical inclusion is a<br />
(non-first-order) condition <strong>of</strong> the form<br />
r(xl,x2,... ) C Ol(X 1 ,x2,...), o2(x 1 ,x2,...),...,<br />
where ... denotes the subalgebra generated by ....