Algebraic structures and state theory represent a confluence of abstract algebra and logic, where the former provides a rigorous framework for describing systems such as BL-algebras, residuated ...

In his paper Good ideals in fields of sets Keisler proved, with the aid of the generalized continuum hypothesis, the existence of countably incomplete, β+-good ultrafilters on the field of all subsets ...

It is a well-known theorem of R. S. Pierce that, for every infinite cardinal a, aℵ0 = a if and only if there is a complete Boolean algebra B s.t. card B = a (see [3, Theorem 25.4]). Recently, Comfort ...

https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!105439~!0#focus ...

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