Archives of: IMPAN working group in applications of set theory

Piotr Koszmider: Uncountable constructions from CH using generic filters

Seminar: Working group in applications of set theory, IMPAN

Thursday, 11.10. 2018, 10:15, room 105, IMPAN

Speaker: Piotr Koszmider (IMPAN)

Title: “Uncountable constructions from CH using generic filters”

Abstact. We will present some old CH constructions due to S. Shelah. As usual they use transfinie induction, diagonalization and enumeration of all relevant objects in the first uncountable type. However, the use of the Martin’s axiom type arguments makes them additionally powerful.

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