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mattrusselluk.bsky.social
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youtu.be/U3GQePblz4M What is the easiest language?

submitted 27 days ago • 0 comments

Blundered into my first infinite loop bug in Lean - and it seems Lean isn't really as set-up to help rule out certain runtime issues ("panics" and non-termination) as I had initially assumed. A teeny bit disappointed!

submitted 81 days ago • 1 comment

Day 8 Advent of Code in Lean: github.com/mdr/aoc-2024...

submitted 82 days ago • 0 comments

I keep trying to migrate this one and the video gets corrupted. It’s just that powerful! #FunctionalProgramming #Haskell #OCamel #Programming

submitted 99 days ago • 3 comments

React but for TUIs would be fun, I bet that exists already

submitted 85 days ago • 1 comment

Day 5 of #AdventofCode in Lean: github.com/chenson2018/... One of my favorite days so far, came out very cleanly. Having quicksort in the language is nice. I enjoyed writing the function to get the middle of an Array with a provably correct index, though ran into some decidable equality trickiness.

submitted 85 days ago • 0 comments

Advent of Code Day 5 in Lean: github.com/mdr/aoc-2024...

submitted 85 days ago • 1 comment

Day 4 Advent of Code in Lean: github.com/mdr/aoc-2024... I suspect I might begin to fall behind the daily pace soon! Today's was a straightforward puzzle, but it took me a while to get both parts working as a Lean novice.

submitted 86 days ago • 0 comments

A Shape must be a Circle or a Square. In Scala, I can write def findCircles(shapes: List[Shape]): List[Circle] In Haskell (and other FP languages), I'm stuck with: findCircles :: [Shape] -> [Shape] Is there a way to achieve the expressivity of the former if you lack subtypes?

submitted 87 days ago • 1 comment

Microservices are just technical debt: www.youtube.com/watch?v=LltD...

submitted 87 days ago • 1 comment

Day 3 Lean Advent of Code solution: github.com/mdr/aoc-2024... I used regexes (but there was enough unpacking of matches that I suspect parser combinators would have been cleaner), and State monad to turn on/off instructions (probably overkill).

submitted 87 days ago • 0 comments

Day 2 Advent of Code solution in Lean: github.com/mdr/aoc-2024... Lean's syntax sugar where you can call certain functions as if they were methods or properties - e.g "report.differences.toSet" - is very pleasant, especially if your day job is OO languages.

submitted 87 days ago • 0 comments

I'm trying to learn a little #leanlang theorem proving as well as use it as a programming language for Advent of Code. I would especially like to get to where I could start to prove some simple properties about programs!

submitted 88 days ago • 1 comment

🎁 Just in time for your #AdventOfCode puzzles, the latest Unison version, 0.5.29 contains a few code rendering improvements and a hefty performance boost for some programs using the standard interpreter.

submitted 88 days ago • 0 comments

I like Lean's Nested Actions syntax lean-lang.org/lean4/doc/do...

submitted 89 days ago • 0 comments

Day 1 Advent of Code solution in Lean github.com/mdr/aoc-2024...

submitted 89 days ago • 0 comments

Just reading the #Lean tutorial. Using special Unicode angle brackets that look visually similar to regular angle brackets is a surely just asking for confusion.

submitted 94 days ago • 0 comments