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math.LO2002★ 3 cited
Hechler's theorem for the null ideal
Maxim R. Burke, Masaru Kada
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…
math.LO2002
Hechler's theorem for the meager ideal
Tomek Bartoszynski, Masaru Kada
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…