Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Cohen algebra

Sortuj według:

Ogranicz wyniki do:

Dominating analytic families

100%

Kamburelis A.

Fundamenta Mathematicae

1998

tom 156

nr 1

73-83

Let A be an analytic family of sequences of sets of integers. We show that either A is dominated or it contains a continuum of almost disjoint sequences. From this we obtain a theorem by Shelah that a Suslin c.c.c. forcing adds a Cohen real if it adds an unbounded real.

Boolean algebras admitting a countable minimally acting group

75%

Błaszczyk A., Kucharski A., Turek S.

Open Mathematics

2014

tom 12

nr 1

46-56

The aim of this paper is to show that every infinite Boolean algebra which admits a countable minimally acting group contains a dense projective subalgebra.

Ograniczanie wyników

1 Fundamenta Mathematicae

1 Open Mathematics

1 Błaszczyk A.

1 Kamburelis A.

1 Kucharski A.

1 Turek S.

1 2014

1 1998

Wyniki wyszukiwania

Dominating analytic families

Boolean algebras admitting a countable minimally acting group