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Logical relations are not closed under composition
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In this episode, I talk through a small (but intricate) example from a paper titled "Pre-logical relations" by Honsell and Sannella, showing that the set of logical relations is not closed under composition.\\xa0 That is, you can have a logical relation between structure A and structure B, and one between B and C, but the composition (while a relation) is not a logical relation between A and C.\\xa0 This took me three takes to get to where I wasn't tripping over my tongue, so enjoy.
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