Bart Michels
26,355
reputation
Some answers I am proud of:
- Proving the identity $\sum_{k=1}^n {k^3} = \big(\sum_{k=1}^n k\big)^2$ without induction (cool)
- Hat 'trick': Can one of them guess right? (surprising)
- Show that $\mathbb{R}^n$ cannot be written as a countable union of proper subspaces (funny)
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