Is the product of ccc spaces a ccc space?
Nina M. Roy (1989)
Publicacions Matemàtiques
Similarity:
In this expository paper it is shown that Martin's Axiom and the negation of the Continuum Hypothesis imply that the product of ccc spaces is a ccc space. The Continuum Hypothesis is then used to construct the Laver-Gavin example of two ccc spaces whose product is not a ccc space.