https://unnamed.website/tags/programming-languages/Recent content in Programming-Languages on Unnamed WebsiteHugoen-usAnthony WangAnthony WangSun, 10 May 2026 21:34:36 -0400https://unnamed.website/posts/proof-assistant/Sun, 10 May 2026 21:34:36 -0400Anthony Wanghttps://unnamed.website/posts/proof-assistant/<p>Lean is an incredibly awesome programming language, as I&rsquo;ve mentioned many times before on this blog. It&rsquo;s blazingly fast, expressive, and has pleasant tooling. I use Lean instead of Python for scripting, I write slides in <a href="https://github.com/kiranandcode/LeanTeX/">LeanTeX</a> (I really should try <a href="https://github.com/leanprover/verso-slides/">VersoSlides</a> sometime too), and I&rsquo;ve even made Lean <a href="https://unnamed.website/posts/bad-apple-lean-tactic/">play &ldquo;Bad Apple!!&rdquo; at compile time</a>.</p> <p>But&hellip; what if we could use Lean as something more than just a mere programming language, and instead do math in Lean? Maybe prove some theorems like the commutativity of addition and the irrationality of √2?</p>