me: ah yes, it's so cold that my fingertips are tinted blue.

my diet coca cola addiction: time for a cold drink

tap tap is this thing on

cubical without glue thats like [two things which are inseparable]

Ahh so that's how Agda is designed

syntax? is that like an initial lccc?

constructing a right adjoint to f^* from cartesian closure of all slices... "fun"

man

You know when you have little a problem, then you say "eh, I'll deal with it later", then suddenly it's "later" and the problem is now a massive problem

github.com/plt-amy/1lab/issues

announcement (boosts appreciated)

We're delighted to announce the HoTTEST Summer School, which will take place online everywhere in the world during the months of July and August 2022.

The school will run both synchronously and asynchronously. The lectures will be delivered live (between 2:30-4pm UTC) and paired with various tutorial sessions run by teaching assistants. The course will also feature a discord-based all-hours Q&A and an online archive of all course materials so that participants can follow along on their own schedule.

This school is for everyone and anyone with some familiarity with abstract mathematics or theoretical computer science and an itching to learn about homotopy type theory. Our goal is to make homotopy type theory accessible to, and inclusive of, everyone who is interested, regardless of cultural background, age, ability, formal education, ethnicity, gender identity, or expression. We believe HoTT is for everyone, and are committed to fostering a kind, inclusive environment.

Read more: groups.google.com/g/homotopyty
Join the Discord: discord.gg/tkhJ9zCGs9

we're at 39785 lines of prose+code, 17k of just code

think im gonna do ends tomorrow. also remember when i said i'd do an easy theorem today instead of thinking too hard? i ended up writing ~1000 lines about abelian categories. woops

Froyoneda embedding

$L \dashv \mathrm{ratio}$

bro that proof is like 14 pages can we not do better

> This is VII.9.1 in Mac Lane-Moerdijk

Pain, suffering even

normal website having a normal one

$[\mathbf{FinSets}^\mathrm{op}, \mathbf{Sets}]$

$a$

Ok I think I have LaTeX rendering disabled somehow but I can't be bothered to figure out the settings so

noo what did I do wrong 😭

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A Mastodon instance for programming language theorists and mathematicians. Or just anyone who wants to hang out.