ℳ-rank and meager groups
Tom 150 / 1996
Fundamenta Mathematicae 150 (1996), 149-171
DOI: 10.4064/fm-150-2-149-171
Streszczenie
Assume p* is a meager type in a superstable theory T. We investigate definability properties of p*-closure. We prove that if T has $<2^{ℵ_0}$ countable models then the multiplicity rank ℳ of every type p is finite. We improve Saffe's conjecture.
