From Cantor's Attic
Revision as of 18:00, 27 March 2014 by Jdh (Talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

I am not convinced the definition is what we want. Wouldn't every cardinal above the least PFA cardinal also be a PFA cardin

Yes, that seems to be right. I suppose we want that the forcing is nontrivial unbounded in kappa. Or we could say in the iteration that if PFA holds at that stage, then we add a Cohen real. (by the way, type four tildes to sign your talk posts.) JDH (talk) 19:00, 27 March 2014 (PDT)