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Order-theoretic fixed point theorems

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Some messy history of messy classical proofs and a simple constructive proof with applications to messy algebra.

I will survey the history of classical and constructive fixed point theorems in order theory, demonstrating that most of the attributions are wrong and why not to use transfinite recursion.

I will conclude with a constructive theorem that can do everything that the older ones could do, but has a simpler proof and is easier to use.


This talk is part of the Lab Lunch series.

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