The semigroup of varieties of Brouwerian semilattices

Köhler, Peter

doi:10.1090/S0002-9947-1978-0480230-6

The semigroup of varieties of Brouwerian semilattices
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Trans. Amer. Math. Soc. 241 (1978), 331-342 Request permission

Abstract:

It is shown that the semigroup of varieties of Brouwerian semilattices is free.

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