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May 1, 2026 2 min

A Strange Deal

from Iowa Type Theory Commute Hosted by Aaron Stump

The Curry-Howard isomorphism for the law of excluded middle, as a radio drama. I first saw a version of this story performed by Phil Wadler and Frank Pfenning (wearing fake horns!) at RTA in Nara, Japan in 2005. This is my take on it. In a subsequent episode, I will explain how the story illustrates the computational interpretation of the law of excluded middle.

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A Strange Deal

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