On Monk’s questions
Volume 151 / 1996
Fundamenta Mathematicae 151 (1996), 1-19
DOI: 10.4064/fm-151-1-1-19
Abstract
We deal with Boolean algebras and their cardinal functions: π-weight π and π-character πχ. We investigate the spectrum of π-weights of subalgebras of a Boolean algebra B. Next we show that the π-character of an ultraproduct of Boolean algebras may be different from the ultraproduct of the π-characters of the factors.
