mathlib4

The math library of Lean 4 (by leanprover-community)

Mathlib4 Alternatives

Similar projects and alternatives to mathlib4

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better mathlib4 alternative or higher similarity.

mathlib4 reviews and mentions

Posts with mentions or reviews of mathlib4. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-11-06.
  • A Linear Algebra Trick for Computing Fibonacci Numbers Fast
    3 projects | news.ycombinator.com | 6 Nov 2023
    We essentially implemented this matrix version in Lean/mathlib to both compute the fibonacci number and generate an efficient proof for the calculation.

    https://github.com/leanprover-community/mathlib4/blob/master...

    In practice this isn't very useful (the definition of Nat.fib unfolds quick enough and concrete large fibonacci numbers don't often appear in proofs) but still it shaves a bit of time off the calculation and the proof verification.

  • Show HN: The first complete open source implementation of Turing's famous paper
    2 projects | news.ycombinator.com | 17 Sep 2023
    As an aside, there are a number of Turing machines defined in Lean's mathlib. https://github.com/leanprover-community/mathlib4/blob/2c3ee3...
  • Lean 4.0.0, first official lean4 release
    10 projects | news.ycombinator.com | 7 Sep 2023
    Thanks,

    and there is Subobject, which looks like the subobject classifier.

    https://github.com/leanprover-community/mathlib4/blob/master...

  • Are There People Doing Formal Math In Berlin?
    3 projects | /r/berlinsocialclub | 13 Jun 2023
    I just wonder if there are any irl meetups of people involved with formalizing mathematics, I thought that it would be a cool hobby to pick up (with some background in math and programming) but the existing libraries, like MathLib, TypeTopology or UniMath look a bit intimidating...
  • Good First Formal Proof?
    1 project | /r/askmath | 10 Jun 2023
    What is a good proof in either unimath or mathlib4 or somewhere else to get started with formal proofs? Like some well known result without too many dependencies, but still nothing trivial like propositional logic?
  • Functional Programming in Lean – a book on using Lean 4 to write programs
    2 projects | news.ycombinator.com | 29 May 2023
    For searching using search terms for theorems in mathlib, there is the mathlib documentation page (for Lean 3 https://leanprover-community.github.io/mathlib_docs/ and Lean 4 https://leanprover-community.github.io/mathlib4_docs/). To find theorems by type, I find the best way is to use the `library_search` tactic from inside Lean itself.
  • Good Entry Points For `mathlib4`?
    1 project | /r/math | 16 May 2023
    Hello, I'd like to start learning Lean 4. I'm already reading the book, but I'm really curious to study real-life parallel. So I looked into mathlib4, but there seem to be a lot of dependencies between the the files. So I wonder the following:
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Basic mathlib4 repo stats
10
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3 days ago

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