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Reassembling datatypes from functors using a fixed-point episode artwork

EPISODE · Jul 11, 2021 · 10 MIN

Reassembling datatypes from functors using a fixed-point

from Iowa Type Theory Commute · host Aaron Stump

Last episode we discussed how functors can describe a single level of a datatype.  In this episode, we discuss how to put these functors back together into a datatype, using disjoint unions of functors and a fixed-point datatype.  The latter expresses the idea that inductive data is built in any finite number of layers, where each layer is described by the functor for the datatype.

Episode metadata supplied by the publisher feed · Published Jul 11, 2021

What this episode covers

Last episode we discussed how functors can describe a single level of a datatype. In this episode, we discuss how to put these functors back together into a datatype, using disjoint unions of functors and a fixed-point datatype. The latter expresses the idea that inductive data is built in any finite number of layers, where each layer is described by the functor for the datatype.

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Reassembling datatypes from functors using a fixed-point

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This episode is 10 minutes long.

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This episode was published on July 11, 2021.

What is this episode about?

Last episode we discussed how functors can describe a single level of a datatype.  In this episode, we discuss how to put these functors back together into a datatype, using disjoint unions of functors and a fixed-point datatype.  The latter...

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