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Cody

@codyroux

Still ultrafinitist, but with a softer side. https://www.kleene.church/ I do the Church of Logic podcast. https://open.spotify.com/show/6vEh6ZpQr1Eoeoz8TbsMKx?si=3-hd-mv3ShGe2LFij4MCIQ

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Latest posts by Cody @codyroux

I don't make the rules. I just selectively apply and/or modify them.

06.03.2026 16:06 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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My proofs are to math as this is to art

03.03.2026 21:25 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Locally sourced

03.03.2026 18:03 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I think I'll work as a provider of artisanal theorems

03.03.2026 18:02 πŸ‘ 8 πŸ” 0 πŸ’¬ 4 πŸ“Œ 0
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Public view of The Rocq Prover | Zulip team chat Browse the publicly accessible channels in The Rocq Prover without logging in.

Holy crap. It's all Rover:

rocq-prover.zulipchat.com#narrow/chann...

03.03.2026 16:55 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Another day of "wait, is it Friday? Ah shit it's Monday".

02.03.2026 20:14 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

While that is true, I'm not sure this explains why this allows the Godel-Lob condition to be forced at all worlds.

02.03.2026 18:43 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Apparently the frame condition for provability logic is "conversely well-founded". That's super cool! I don't really have an intuition for this though: why does having a proof somehow relate to well-foundedness in this setting?

02.03.2026 15:26 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I've made a grave mistake: thinking I could formalize a theorem playing loosely goosey with the paper proof

01.03.2026 14:51 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Linkedin feels like instagram for programmers.

28.02.2026 13:59 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It's weird having anxiety as a white dude because, like, what could I possibly have to worry about?

27.02.2026 21:12 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Chilling with my bros

27.02.2026 14:54 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

You wouldn't want a mathematician to handle a support line, trust me

26.02.2026 20:59 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I definitely can't either!

26.02.2026 20:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Yes, the ever touted utility of supersingular ellptic curves with non-integer isomorphisms ;)

26.02.2026 20:51 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I'm with Zach here, the distinction is meaningless operationally.

26.02.2026 20:48 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Worth noting that the really big deals in math involve wholesale novel concepts, which hasn't been yet demonstrated by such tools.

But still.

26.02.2026 10:58 πŸ‘ 9 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

This useful for the practice of mathematics, and history has shown that that in turn is (sometimes) useful for other human endeavors, like physics and engineering, computer science etc.

So potentially a big deal!

26.02.2026 10:58 πŸ‘ 9 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Short answer: yes, potentially enormously.

Computers indeed compute things that are hard for humans, and that has been incredibly useful, but this is qualitatively different; math problems that researchers deal with require creativity to solve, in ways that so far we haven't been able to automate.

26.02.2026 10:58 πŸ‘ 13 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Apparently the JVM does NOT like shenanigans

25.02.2026 18:31 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Welp. It's really hard to rent an apartment in France if you haven't lived here for years.

It's kinda bullshit.

23.02.2026 21:19 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Neat! I enjoyed Blue Prince because the title sounds a little like blueprints, which is ironic because the game centers around those.

Not sure a lot of puzzle game players caught that one. Kind of a meta joke.

21.02.2026 23:05 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

That's actually how they do it nowadays

21.02.2026 18:27 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It's The Sun and their cruel ilk though, sadly.

21.02.2026 18:27 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Example?

21.02.2026 18:25 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Some of these math textbook "one can easily see that..." are like skill check bosses in Dark Souls

20.02.2026 22:57 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

If I wanted to verify an authentication protocol today, how would I do it?

I assume the real answer is "use an existing protocol + impl" but humor me

19.02.2026 18:46 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

starting a dating site where singles can meet others who also want to dismantle the system of police brutality and the targeted disappearing and killing of immigrants and their allies. it’s going to be called ICEbreakers

16.02.2026 07:55 πŸ‘ 175 πŸ” 44 πŸ’¬ 4 πŸ“Œ 0

"impressive costumes" is a desperate hail mary

16.02.2026 21:31 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

If tomorrow ever arrives!

16.02.2026 18:04 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0