Displaying similar documents to “Martin's axiom and partitions”

OCA and towers in 𝒫 ( ) / f i n

Ilijas Farah (1996)

Commentationes Mathematicae Universitatis Carolinae

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We shall show that Open Coloring Axiom has different influence on the algebra 𝒫 ( ) / f i n than on / f i n . The tool used to accomplish this is forcing with a Suslin tree.