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Last time, we met Gottfried Wilhelm Leibniz, whose calculus notation triumphed even as Newton's reputation crushed him.

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We saw the binary number system, the Leibniz series for pi, and the dream of universal computation.

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Welcome back to Men of Mathematics.

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Today we meet not one genius, but an entire dynasty, the Bernoulli family of Basel.

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They mastered Leibniz's calculus, extended it in every direction, and trained the next generation of mathematicians.

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They also hated each other with a passion that makes Newton and Leibniz look like friends.