Continuing on from my earlier theme of maths books you really should read, I would like to add "1089 And All That" to the list. This is a great read, much in the vein of "The Most Beautiful Mathematical Formulas: An Entertaining Look at the Most Insightful, Useful and Quirky Theorems of All Time". And from it, I would like to offer this little anecdote:
- "[an] astronomer, a physicist and a mathematician ...were on a train journey together in Scotland. Glancing from the window they observed a black sheep in the middle of a field.
'How interesting!' said the astronomer. 'All Scottish sheep are black!'
The physicist, rather startled, said: 'Surely you mean some Scottish sheep are black?'
But the mathematician viewed even this as a bit rash. 'I think what you both mean,' he said, 'is that there is at least one sheep in Scotland which is black on at least one side.'"
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