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William Thurston

William Thurston was an American mathematician and recipient of the 1982 Fields Medal, known for his work on the topology of three-dimensional manifolds and the geometrization conjecture, as well as for deep reflections on the nature of mathematics and the philosophy of proof.

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Oct 14

William Thurston (1946–2012) was an American mathematician who won the Fields Medal in 1982 for his revolutionary work in three-dimensional manifold topology.

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Oct 14

In 1994, William Thurston published "On proof and progress in mathematics" in the Bulletin of the American Mathematical Society, responding to the debate at the time about "what constitutes a rigorous proof."

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Oct 14

Thurston's core argument is that progress in mathematics cannot be measured solely by "whether a theorem has been proved"; real progress lies in changes in how humans understand.

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Oct 14

Thurston distinguished between "formal proof" and "mathematical understanding": the former is a chain of logic written on paper, while the latter is a knowledge structure in the mathematician's mind that is transferable, explainable, and open to further development.

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