Author Topic: Lurch is cross platform software for teaching and learning mathematical proofs  (Read 928 times)

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Software Santa

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Lurch is powerful, FREE, cross platform software for teaching and learning mathematical proofs! It is a simple math word processor with a general-purpose math checker built in!


Software for teaching and learning mathematical proofs
Where most mathematical proof software concentrates on formal logic (or some other specialty area of mathematics), Lurch aims to be truly general-purpose, with an attracitve user interface.

Computer Aided Instruction (CAI), Mathematics

GNU General Public License version 2.0 (GPLv2)

Additional Project Details:
Intended Audience
Education, Science/Research

User Interface

Programming Language
C++, JavaScript



Your word processor has spelling and grammar checkers. Your math word processor should check your math. (Not just arithmetic, but algebra, calculus, and proofs as well.)

That is what Lurch does; it is a simple math word processor with a general-purpose math checker built in. The project began in June 2008 and version 0.75 has recently been released. You can download it free for Windows, Mac, or Linux.

Lurch 0.8 Released on April 3, 2014!  (Download)  (Troubles? See our FAQ!)

Lurch now supports full mathematical typesetting of math expressions in either TeX or calculator notation. This is a major release, following version 0.7992.  See release notes here.

Mission Statement

  • Lurch should be as indistinguishable from the ordinary activities of mathematics as possible, except for the additional services it provides. That is, it should only add to your math experience, not change your math experience.

TeX-enabled word processoronly unicode math symbols for now, more math rendering coming
built on OpenMath for unambiguous semanticsdone and thoroughly tested
JavaScript engine for customizing validationdone and thoroughly tested
several math topics built inseveral now, more coming
users can add new math topics
Lurch, look no further than the free, online introductory logic textbook forallX, now updated to include Lurch lessons throughout.

Original text

For several years, this author (Nathan Carter) has used the textbook forallX by P.D. Magnus in his introduction to logic course for honors students at Bentley University

Since Lurch became mature enough to handle the course content, I wanted a book that integrated LurchforallX in Lurchis
  • Lurch,
  • Know math but not Lurch?  Want to learn without figuring it all out on your own?  Flip through the text, skip the math you already know, and just focus on the software lessons.  They begin at the very beginning (installing Lurch and typing text) and end at the advanced (declaring variables and using them in proofs with quantifiers).