2011 seminar talk: $\Pi^1_1$ conservation of combinatorial principles weaker than Ramsey's Theorem for pairs
Talk held by CT Chong (National University of Singapore) at the KGRC seminar on 2011-07-05.
Abstract
We discuss several combinatorial principles known to be weaker than Ramsey's Theorem for pairs from the point of view of reverse mathematics. This is joint work with Ted Slaman and Yue Yang.