Editor's Note] The International Congress of Mathematicians (ICM) will be held in Philadelphia, USA, from July 23-30, 2026.

RIO DE JANEIRO - Spring's Simone Biles is the four-time defending national champion and three-time defending world champion because she does the hardest routines in the world more cleanly than other ...

Every year, the countries competing in the International Mathematical Olympiad arrive with a booklet of their best, most original problems. Those booklets get shared among delegations, then quietly ...

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