Skip to content

Hechler's theorem for the meager ideal

Tomek Bartoszynski, Masaru Kada

math.LOarXiv:math/0209086

Abstract

We prove the following theorem: For a partially ordered set Q such that every countable subset has a strict upper bound, there is a forcing notion satisfying ccc such that, in the forcing model, there is a basis of the meager ideal of the real line which is order-isomorphic to Q with respect to set-inclusion. This is a variation of Hechler's classical result in the theory of forcing.

Create a lesson