reto (@oter) profile picture
Seattle, WA
Joined June 2008
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I'm happy to announce Thales, a TypeScript compiler and JS engine in Lean. Thales compiles a subset of TypeScript to Lean via a shallow embedding. I'm building a bridge for TS programmers into Lean's program verification toolset. Check out github.com/jessealama/thales to get started.
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Our AI theorem prover has just got a lot more powerful. Please give it a spin!
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AI is writing a growing share of the world's software. No one is formally verifying any of it. New essay: "When AI Writes the World's Software, Who Verifies It?" leodemoura.github.io/blog/20…
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reto retweeted
The CSLib steering committee recently announced the official launch of CSLib — an open-source effort to formalize computer science in Lean, inspired by the impact of Mathlib in mathematics. CS researchers, practitioners, and enthusiasts are invited to get involved to support formalizing essential computer science concepts, and building infrastructure for reasoning about real-world code with Lean. Learn more at: 🌐 cslib.io 📄 White paper: arxiv.org/abs/2602.04846 🤝 Contribute: github.com/leanprover/cslib/… #LeanLang #LeanProver #CSLib #OpenSource #FormalVerification
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I wrote an essay on proof assistants in the age of AI. leodemoura.github.io/blog/20…
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I created a short video about how Arch (the intelligent proxy for agents built on Envoy) can help with intent routing for smarter retrieval, guardrails for safety, and function calling for agent personalization via simple @FastAPIs. Of course, @Gradio is our natively integrated chat interface, and you can select from @MistralAI and @OpenAI LLMs for summarization (more coming soon)
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1. Richard Bird, code as poetry. 2. Mike Burrows, absolute mastery of low level code. 3. Jeff Dean, planet-scale coding. 4. Niklas Wirth, frugality and precision in language design. 5. Lennart Augustsson, utter genius at coding anything.
Who are your top 5 programmers of all time and why? Mine: 1. Fabrice Bellard (ffmpeg, tinycc, quickjs) 2. John Carmack (doom, quake) 3. John McCarthy (lisp, father of AI, invented GC, timesharing) 4. Linus (linux man) 5. Dennis Ritchie (C and unix, K&R book)
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I think I'm finally starting to get "virtual ground" with opamps. Trying to work out the max (DAC+opamp) output voltage for the DIY AVR. Aiming for 2Vrms, to match the power amp input(s). With this opamp setup, it will always strive to keep the voltage on both inputs the same.
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Call for talk proposals for TLA+ workshop on April 15th in Seattle, WA, as part of the Linux Foundation Open Source Software Summit North America 2024 (close to 3K crowd) Submit 2 page proposals as explained here by Feb 7th: conf.tlapl.us/home/ #tlaplus RT please!
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Announcing throughput increase and dead letter queue redrive support for Amazon SQS FIFO queues 👉 With these updates and the increased throughput, you can cover the vast majority of use cases with FIFO queues buff.ly/3NpJaJF #AWS #Messaging #FIFO
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We keep adding new customer value to our FIFO messaging products. 🚀 #aws #serverless #reinvent Today, we announced two new capabilities for SQS FIFO queues: 1⃣ First, we increased its throughput quota to 70K messages per second: aws.amazon.com/about-aws/wha…
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Ok, that's pretty ridiculous. The throughput quota for SQS FIFO has gone up to 70,000 TPS! Lots of throughput limit raises this re:invent so far. aws.amazon.com/about-aws/wha…
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New Amazon APIs for SQS redrive 😍 Just redrive to the original queue would have been nice. This is EXTRA nice because it allows us to specify any destination queue 😍😮 That's a whole class of Lambda Functions.... POOF, gone. aws.amazon.com/blogs/aws/a-n…
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Jane Street is now looking to hire a SECOND internal education person. This is great for CS ed as a field! Details here. Earn more than you will as a professor. (-: (Ask @yminsky if you have questions, I'm just boosting.) janestreet.com/join-jane-str…
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Replying to @yminsky
I've been impressed by Amazon. @nikomatsakis is supporting similar work.
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We are excited to announce the launch of the TLA+ Foundation, under the umbrella of the Linux Foundation. The TLA+ Foundation will promote the adoption and development of the TLA+ programming language and its community of TLA+ practitioners. Learn more: hubs.la/Q01MjLDM0
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We flew a kite for systems programming. m.youtube.com/watch?v=0Htbs1…
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