An executable specification language with delightful tooling based on the temporal logic of actions (TLA)

A collection of TLA⁺ specifications of varying complexities.

Dr. TLA+ series - learn an algorithm and protocol, study a specification

A gently curated list of companies using verification formal methods in industry

APALACHE: symbolic model checker for TLA+ and Quint

Tutorial "Weeks of debugging can save you hours of TLA+". Each git commit introduces a new concept => check the git history!

Easiest-ever formal methods language! Designed for developers crafting distributed systems, microservices, and cloud applications

TLA+ snippets, operators, and modules contributed and curated by the TLA+ community

Learn TLA+ for free! No prior experience necessary!

Interactive playground for exploring and sharing TLA+ specifications in the browser.

A static web application to explore and animate a TLA+ state graph.

A selection of textbook-like course notes for the Imperial College Computing modules.

Advanced fuzzing via Model Based Testing for Cosmos blockchains

A script for running TLA+/TLC from the command line

Generate (message) sequence diagrams from TLA+ state traces

A tree-sitter grammar for TLA⁺ and PlusCal

Model-based testing tool

Distributed termination detection on a ring, due to Shmuel Safra:

Reading the linearizability paper with TLA+

A TLA+ module for animating TLC traces.