Philosophy of Mathspeaking topic
There are infinitely many integers, and infinitely many even numbers. It feels like we threw half away, yet the two sets are exactly the same size. If half of something can be as big as the whole, what does 'half' even mean?
— Cantor, countable infinity
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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