### More forcing notions imply diamond

by Roslanowski and Shelah. [RoSh:475]

Archive for Math Logic, 1996

We prove that the Sacks forcing collapses the continuum onto the
dominating number d, answering the question of Carlson and
Laver. Next we prove that if a proper forcing of the size at most
continuum collapses omega_2 then it forces
diamondsuit_{omega_1} .

Back to the list of publications