The mathematical field of set theory and its applications
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Let's prove that, if a set has size \(n\), then that same set has exactly \(2^n\) subsets.
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| article | words |
Let's prove that, if a set has size \(n\), then that same set has exactly \(2^n\) subsets.
Think of a number between 1 and 10. Multiply it by 9 and subtract 1. Now close your eyes. It got dark, didn't it?
