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Why formalize mathematics – more than catching errors

https://rkirov.github.io/posts/why_lean/
2•Bogdanp•2h ago

Comments

alganet•1h ago
Thing is, it sounds like more than I could take. I mean, formal math, not TypeScript.

For TS I really just need some solid notion about sets, maybe some experience with generics, and patience to deal with how other people annotated their types if I want to use their code. It's not that big of a deal.

Math on the other hand, has lots of stuff formalized. Personally, doesn't feel like I can just jump in into one of those formal systems and thrive. It's way more than sets.

Perhaps the post is not for me. It's for people above me in math skills. In fact, I'm sure of it! But maybe there's some curious people that know TS and could be led to believe formal math is also just annotating types and doing sets, when I know that it's not! Analogies can be tricky sometimes.

What are good math abbreviations?

https://old.reddit.com/r/math/comments/l2eda8
1•susam•39s ago•0 comments

AI talent war sees UBS recruit leadership from JPMorgan

https://www.computerweekly.com/news/366632900/AI-talent-war-sees-UBS-recruit-leadership-from-JPMo...
1•latein•1m ago•0 comments

Revolt chat rebranded to Stoat due to trademark issues

https://stoat.chat/updates/long-live-stoat
1•maxloh•7m ago•0 comments

SRAM Scaling Issues, and What Comes Next (2024)

https://semiengineering.com/sram-scaling-issues-and-what-comes-next/
1•porridgeraisin•8m ago•0 comments

1958 Mars Bluff B-47 Nuclear Weapon Loss Incident

https://en.wikipedia.org/wiki/1958_Mars_Bluff_B-47_nuclear_weapon_loss_incident
1•nikolay•16m ago•0 comments

Nvidia unveils first Blackwell chip wafer made with TSMC in US

https://www.reuters.com/technology/nvidia-tsmc-unveil-first-blackwell-chip-wafer-made-us-axios-re...
1•mgh2•18m ago•1 comments

CPS: Compendium of Pharmaceuticals, Starfleet

https://cps.bgcarlisle.com/
1•sohkamyung•32m ago•0 comments

The problem with single-threaded shared mutability

https://manishearth.github.io/blog/2015/05/17/the-problem-with-shared-mutability/
1•fanf2•32m ago•0 comments

New User Trends on Wikipedia

https://diff.wikimedia.org/2025/10/17/new-user-trends-on-wikipedia/
1•TangerineDream•35m ago•0 comments

Magnifying the minuscule: Nikon Small World photomicrography 2025 – in pictures

https://www.theguardian.com/science/gallery/2025/oct/16/nikon-small-world-photomicrography-2025-i...
3•swores•36m ago•0 comments

How Coding Agents Work: Inside OpenCode

https://cefboud.com/posts/coding-agents-internals-opencode-deepdive/
1•mafro•36m ago•0 comments

AGI is still a decade away

https://simonwillison.net/2025/Oct/18/agi-is-still-a-decade-away/
2•nsoonhui•36m ago•0 comments

Show HN: I Built Videoyards to create professional demos videos

https://videoyards.com
1•Yaramsa-Gautham•37m ago•0 comments

Inside the Web infrastructure revolt over Google’s AI Overviews

https://arstechnica.com/ai/2025/10/inside-the-web-infrastructure-revolt-over-googles-ai-overviews/
1•thm•39m ago•0 comments

How Americans are coming back from fentanyl addiction

https://www.bbc.com/news/articles/cm2e471159vo
1•1659447091•40m ago•0 comments

Life, Work, Death and the Peasant, Part V: Life in Cycles

https://acoup.blog/2025/10/17/collections-life-work-death-and-the-peasant-part-v-life-in-cycles/
1•bell-cot•43m ago•0 comments

Tracking What's What

https://medium.com/luminasticity/tracking-whats-what-da1677cc479a
1•bryanrasmussen•50m ago•0 comments

I made a free web application to read aloud PDFs and EPUBs

https://readaloudpdf.org/
1•Graxi•50m ago•0 comments

When the World Realizes the Internet Has a Single Point of Failure

https://comuniq.xyz/post?t=441
3•01-_-•56m ago•0 comments

AI Advantage: Moody Notes

https://renegare.substack.com/p/renegare-the-ai-advantage
1•mrmoo•57m ago•0 comments

ICE Buying Millions in Spyware – Reportedly to Use on Americans

https://www.mediaite.com/media/news/ice-buying-millions-in-spyware-to-use-on-americans/
2•01-_-•57m ago•1 comments

The struggle to protect the young from conspiracy theorist parents

https://www.bbc.com/news/articles/c749d9557j2o
1•1659447091•59m ago•1 comments

Windows 10 refugees flock to Linux in what devs call their "biggest launch"

https://www.neowin.net/news/windows-10-refugees-flock-to-linux-in-what-devs-call-their-biggest-la...
2•bundie•1h ago•1 comments

Record-breaking chip sidesteps Moore's Law by growing upwards

https://www.newscientist.com/article/2500460-record-breaking-chip-sidesteps-moores-law-by-growing...
1•thunderbong•1h ago•2 comments

Luxury Tech

https://www.robinsloan.com/lab/luxury-tech/
1•FromTheArchives•1h ago•0 comments

Lovense Lush Mini Review: A Dual-Stimulation Vibrator

https://www.wired.com/review/lovense-lush-mini/
3•quapster•1h ago•0 comments

The Once and Future Perceptron

https://www.robinsloan.com/lab/once-and-future-perceptron/
1•FromTheArchives•1h ago•0 comments

Rocks, minds, and Turing machines – what does it mean to compute?

https://thefriendlyghost.nl/computation/
1•cvanelteren•1h ago•1 comments

Text inputs are weird [video]

https://www.youtube.com/watch?v=c2i2DIkxd8o
1•micvbang•1h ago•0 comments

Ask HN: What background color among white or black preferrable for websites?

1•avivallssa•1h ago•4 comments