HarrisonGrodin

PhD student in the CMU SCS CSD PoP group, excited about type theory, programming languages, and category theory

Public Key

npub10twd8l2ldt7tx4axe7jchm040hy324e28ket8p5a9jk4vy90ly0qxmdyyu

NIP-05 Address

HarrisonGrodin@mathstodon-xyz.mostr.pub

Profile Code

nprofile1qqs84hxnl40k4l9n27nvlfvtah6hmjg42u4rmv4ns6wjet2kzzhlj8spz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsj8gj4y

Publishing to

nostr.wine

Author Public Key

npub10twd8l2ldt7tx4axe7jchm040hy324e28ket8p5a9jk4vy90ly0qxmdyyu

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Last Notes

2026-02-09 15:47:28 UTC

- reply

@nprofile…xuzd Thanks, these look quite nice! I do like the mathematical angle you take, vs my notes are a bit more implementation driven.
(I wish I could've talked more about the theory - eg, regular expressions being the free monad on the character set, and automata being a cofree comonad!)

2026-01-29 23:13:14 UTC

- reply

@nprofile…sqfw They could be, but I figured 1 as the terminal object/nullary product is reasonable, and same for 0 and initial object/nullary coproduct.

2026-01-29 04:15:22 UTC

(series preface, Mathematics and Its Applications)
https://media.mathstodon.xyz/media_attachments/files/115/976/427/687/465/368/original/3afd3997bb5faee3.png
https://media.mathstodon.xyz/media_attachments/files/115/976/428/468/800/036/original/c2aac63c021a7229.png

2025-04-22 02:26:33 UTC

broke woke
(⊤,&) (1,×)
(1,⊗) (⊤,⊗)
(0,⊕) (0,+)
(⊥,⅋) (⊥,⊕)