Скачать или смотреть bad math proofs explained: 1=2?, e=π? can't divide by 0?

You probably have seen "proofs" that 1=2 or e=pi but have you ever what the trick is behind all these bad math proofs? In fact, many of the bad math proofs could be explained by just one word...

0:00 proof that 1=2
2:14 "injective" means "one-to-one" & "one-to-one" means injective"
4:58 proof that e=pi
6:45 why can't we divide by zero

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