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Splitting families of sets in ZFC
Authors:Menachem Kojman
Institution:Department of Mathematics, Ben-Gurion University of the Negev, P.O.B. 653, Be''er Sheva 84105, Israel
Abstract:Miller's 1937 splitting theorem was proved for every finite n>0n>0 for all ρ-uniform families of sets in which ρ is infinite. A simple method for proving Miller-type splitting theorems is presented here and an extension of Miller's theorem is proved in ZFC for every cardinal ν for all ρ  -uniform families in which ρ≥?ω(ν)ρ?ω(ν). The main ingredient in the method is an asymptotic infinitary Löwenheim–Skolem theorem for anti-monotone set functions.
Keywords:03E04  03E05  03E75  05C15  05C63
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