⚔️ Lean Theorem

Mathematical Reasoning, Interactive Proving, Type Theory, Formal Mathematics

Types That Count: Journey across Qualitative and Quantitative Intersection Types
iris.unito.it·1d·
Discuss: Hacker News
🔍Type Inference
Pointwise definable end-extensions of models of arithmetic and set theory, Changchun, China, July 2025
jdh.hamkins.org·2d
🏗️Constructive Mathematics
Cancellative Convex Semilattices
arxiv.org·13h
🔲Proof Irrelevance
A Poet Completes the Square
denisegaskins.com·4h
⚔️Lean Tactics
Dual numbers
funcall.blogspot.com·40m·
Discuss: www.blogger.com
📐Interval Arithmetic
A Rust shaped hole
ente.io·2d
🦀Rust Macros
Functional Abstract Interpretation
simon.peytonjones.org·1d·
Discuss: Hacker News
🔗Functional Compilers
Effectively Zero-Knowledge Proofs for NP with No Interaction, No Setup
eccc.weizmann.ac.il·19h·
Discuss: Hacker News
🎯Interactive Provers
Historical highlights?
logicmatters.net·1d
🔀Category Theory
Cactus Language • Stylistics 4
inquiryintoinquiry.com·1d
🌳Context free grammars
Proof by Intimidation
en.wikipedia.org·8h·
Discuss: Hacker News
🎯Proof Tactics
The Fundamental Failure-Mode Theorem: Systems lie about their proper functioning
devblogs.microsoft.com·3h
💾Persistence Strategies
A PhD's Apology
cappadokes.github.io·4h·
Discuss: Hacker News
🧮Theoretical Computer Science
Book Notes: The Dark Art of Linear Algebra by Seth Braver — Chapter 1 Review
ruslanspivak.com·1d
📐Mathematical Art
Binary Search in a 2D Matrix
mmhaskell.com·2d
📐Error Bounds
How a 12% Tax Rule Becomes Code: Grammar, Law, and Machine Execution
dev.to·4h·
Discuss: DEV
📝Concrete Syntax
The great misunderstanding of the DRY principle
pmatteo.com·2d·
Discuss: Hacker News
💧Liquid Types
A distributed systems reliability glossary
antithesis.com·1d·
Discuss: Lobsters, Hacker News, r/programming
✅Archive Fixity
Extensions and Shadows (6)
sites.psu.edu·1d
🎯Proof Tactics
Understanding TypeScript A Beginner-Friendly Dive Into Types
blog.codeminer42.com·1d
🎯Gradual Typing