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- W1602666801 abstract "Let ex be the cardinality of the smallest independent family of subsets of omega (independent means that all nontrivial Boolean combinations are infinite) which cannot be extended to a homogeneous independent family. Homogeneous means that every finite partial map (points to points, sets to sets) that is compatible with the family is induced by a permutation of omega. Despite its apparently ``complex'' (second order) definition, this cardinal is equal to a well-known ``simple'' cardinal invariant from Cichon's diagram." @default.
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- W1602666801 date "1997-07-16" @default.
- W1602666801 modified "2023-09-27" @default.
- W1602666801 title "A cardinal invariant related to homogeneous families" @default.
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