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Updated lean post

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Brandon Rozek 2024-03-17 23:11:17 -04:00
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@ -6,10 +6,13 @@ medium_enabled: true
medium_post_id: adea1a69ddc8
tags:
- Formal Methods
title: Lean Theorem Prover Tactics
title: Lean 3 Theorem Prover Tactics
---
I've recently been playing with the Lean Theorem Prover. I am impressed with how some of the mathematics community decided to extend this project via [mathlib](https://leanprover-community.github.io/) and really make proving theorems in this framework easy and enjoyable.
Warning: This post covers Lean 3 which has been deprecated
in favor of Lean 4.
I've recently been playing with the Lean 3 Theorem Prover. I am impressed with how some of the mathematics community decided to extend this project via [mathlib](https://leanprover-community.github.io/) and really make proving theorems in this framework easy and enjoyable.
Normally one of the most frustrating parts of theorem proving is having to justify what may seem to be a simple goal. Luckily, mathlib helps us out by [introducing tactics](https://leanprover-community.github.io/mathlib_docs/tactics.html) that can take some of these simple goals to the finish line.