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.
Original language | English |
---|---|
Pages (from-to) | 1-18 |
Number of pages | 18 |
Journal | Fundamenta Mathematicae |
Volume | 151 |
Issue number | 1 |
State | Published - 1996 |