Andrej Bauer wrote a popular post in 2016 (Hask is not a category): https://math.andrej.com/2016/08/06/hask-is-not-a-category/ https://math.andrej.com/2016/08/

Andrej Bauer wrote a popular post in 2016 (Hask is not a category): https://math.andrej.com/2016/08/06/hask-is-not-a-category/ https://math.andrej.com/2016/08/06/hask-is-not-a-category/ Mathematicians are still thinking about this stuff. A recent post by Mike Shulman, asking about Agda (Haskell for mathematicians): https://proofassistants.stackexchange.com/questions/1887/categorical-semantics-of-agda https://proofassistants.stackexchange.com/questions/1887/cat...