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math.LO2008
A note on ccc forcings
Marcin Sabok
The aim of this short note is to communicate a simple solution to the problem posed in [1] as Question 7.2.7: is it true that for every ccc -ideal I any I-positive Borel set con…
math.LO2008
-continuity and related forcings
Marcin Sabok
The Steprans forcing notion arises as a quotient of Borel sets modulo the ideal of -continuity of a certain Borel not -continuous function. We give a characterization of this…