“It’s Not Because They’re Japanese”: What #Lean in #Japan Really Teaches Us https://www.leanblog.org/2025/05/its-not-because-theyre-japanese-what-lean-in-japan-really-teaches-us/
It's amazing how much I miss stats a la MPlayer in my video output overlay
How cool simple and smooth my playback arsenal has become
#Android #music #player #mPlayer #musicolet #VLC #lean #MPV #minimalist #OpenSource #POSIX
screwing around with #Lean has mainly served to confirm my prior suspicion that LSPs need to be a lot lighter weight before I'll be interested in using them on a day-to-day basis. I do not appreciate it when my editor lags and my computer's fans howl because some kind of compilation process is being repeated for every keystroke *while I'm in the middle of writing a comment*.
I recently set myself the exercise of using modern automated tools - in particular, a combination of the #GithubCopilot large language model and the dependent type matching tactic #canonical - to try to semi-automatically formalize in #Lean a one-page proof provided by a collaborator of the #EquationalTheoriesProject (Bruno Le Floch). With these tools, I was able to more or less blindly do the formalization in 33 minutes, withou any real high level conception of how the proof proceeded. It was a very different style to how I usually formalize results, but was workable for this type of technical, non-conceptual argument where the main issue is to get the details correct rather than the "big picture".
I recorded my attempt at https://www.youtube.com/watch?v=cyyR7j2ChCI . See also additional discussion at https://leanprover.zulipchat.com/#narrow/channel/458659-Equational/topic/Alternative.20proofs.20of.20E1689.E2.8A.A2E2 . The final proof (which is far from optimized, but got the job done) can be found at https://github.com/teorth/estimate_tools/blob/master/EstimateTools/test/equational.lean
@kubikpixel Haskell is too mainstream for me, I write all my AI-powered malware in #ℒ∃∀ℕ (or #LEAN is you're ASCII).
Multi-level Visualization: Engage Everyone in #ProblemSolving to Achieve Business Results https://www.lean.org/the-lean-post/articles/multi-level-visualization-engage-everyone-in-problem-solving-to-achieve-business-results/ #Lean
Who would have thought that 250 would have already listened to A Junior, A Senior and I
https://open.spotify.com/show/7AMbqJv7HCdSDiTG1nvUaa?si=WULciwKFTx-DMXSm6iYlwQ
Bertrand Russell's Principia Mathematica in Lean