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After years of debate, Palo Alto's school board approved two new advanced math courses: multivariable calculus/linear algebra honors and introduction to proofs honors.

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All of modern mathematics is built on the foundation of set theory, the study of how to organize abstract collections of objects. But in general, research mathematicians don’t need to think about it ...

Research: set-theoretic topology, selection principles, covering properties, covering dimension. Research: set theory, set-theoretic topology, selection principles, game theory, and combinatorics.