Philosophy of Mathspeaking topic
At any moment of the year, there exist two exactly opposite points on Earth with precisely the same temperature and pressure. Not a coincidence, a mathematical necessity. Why is chaos condemned to symmetry?
— the Borsuk-Ulam theorem
practice with this topic
Set the timer (5-30 min), take 20 seconds of prep if you like, start talking. Jot your thoughts onto the sticky-note board.
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