Descriptive set theorists study the niche mathematics of infinity. Now, they’ve shown that their problems can be rewritten in ...

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Hannah Cairo is in the first year of her mathematics graduate program at the University of Maryland. Like her peers, she does research and is a TA on campus.

Words matter. And when it comes to learning math, they matter more than you might think.

When Hannah Cairo started showing up at Berkeley Math Circle meetings as a teenager, nobody was betting she would topple a ...