Past Seminars- Logic Set Theory

Logic Set Theory

The influence of strong forcing axioms on weak square

Professor James Cummings

Thu May 12, 2011

4:00 pm

We use the extent to which the combinatorial principle "weak square" holds to quantify the influence of Martin's Maximum on the combinatorics of singular cardinals. (joint work with Menachem Magidor)
Logic Set Theory

Generic Elementary Embeddings I

Monroe Eskew

Mon May 9, 2011

4:00 pm

Generic embeddings are a generalization of large cardinal embeddings. The difference is that they are definied in a forcing extension, using an object in the ground model called a precipitous ideal. An interesting feature is that the critical point can be quite small. In this talk I will develop some basic properties, emphasizing the...
Logic Set Theory

Resectionable and other \Sigma_1 truths

Professor Ralf-Dieter Schindler

Mon May 2, 2011

4:00 pm

Which consistent statements can be forced to be true? It is shown that "resectionable" \Sigma_1 statements about parameters in H_{\omega_2} which are "honestly consistent" can be forced to be true in a stationary set preserving extension, and we also show that a strong form of BMM, according to which all "honestly consistent" \Sigma_1 statements...
Logic Set Theory

On Homeomorphisms of Lebesgue Stieltjies measure with Lebesgue Measure IV

Sean Xue

Mon Apr 25, 2011

4:00 pm
Logic Set Theory

On Homeomorphisms of Lebesgue Stieltjies measure with Lebesgue Measure III

Sean Xue

Mon Apr 18, 2011

4:00 pm
Logic Set Theory

On Homeomorphisms of Lebesgue Stieltjies measure with Lebesgue Measure II

Sean Xue

Mon Apr 11, 2011

4:00 pm
Logic Set Theory

On Homeomorphisms of Lebesgue Stieltjies measure with Lebesgue Measure

Sean Xue

Mon Apr 4, 2011

4:00 pm

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Past Seminars- Logic Set Theory