The additivity of porosity ideals
arXiv:math/9309206
Abstract
We show that several sigma-ideals related to porous sets have additivity omega_1 and cofinality 2^omega. This answers a question addressed by Miroslav Repick'y.
arXiv:math/9309206
We show that several sigma-ideals related to porous sets have additivity omega_1 and cofinality 2^omega. This answers a question addressed by Miroslav Repick'y.