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This repository hosts the core TLA⁺ command line interface (CLI) Tools and the Toolbox integrated development environment (IDE). Its development is managed by the TLA⁺ Foundation. See http://tlapl.us for more information about TLA⁺ itself. For the TLA⁺ proof manager, see http://proofs.tlapl.us.

Versioned releases can be found on the Releases page. Currently, every commit to the master branch is built & uploaded to the 1.8.0 Clarke pre-release. If you want the latest fixes & features you can use that pre-release.

The TLA⁺ tools require Java 11+ to run. The tla2tools.jar file contains multiple TLA⁺ tools. They can be used as follows:

java -cp tla2tools.jar tla2sany.SANY -help  # The TLA⁺ parser
java -cp tla2tools.jar tlc2.TLC -help       # The TLA⁺ finite model checker
java -cp tla2tools.jar tlc2.REPL            # Enter the TLA⁺ REPL
java -cp tla2tools.jar pcal.trans -help     # The PlusCal-to-TLA⁺ translator
java -cp tla2tools.jar tla2tex.TLA -help    # The TLA⁺-to-LaTeX translator

If you add tla2tools.jar to your CLASSPATH environment variable then you can skip the -cp tla2tools.jar parameter. Running java -jar tla2tools.jar is aliased to java -cp tla2tools.jar tlc2.TLC.

The TLA⁺ Tools and Toolbox IDE are both written in Java. The TLA⁺ Tools source code is in tlatools/org.lamport.tlatools. The Toolbox IDE is based on Eclipse Platform and is in the toolbox directory. For instructions on building & testing these as well as setting up a development environment, see DEVELOPING.md.

We welcome your contributions to this open source project! TLA⁺ is used in safety-critical systems, so we have a contribution process in place to ensure quality is maintained; read CONTRIBUTING.md before beginning work.

Copyright (c) 199?-2003 HP Corporation
Copyright (c) 2003-2020 Microsoft Corporation

Licensed under the MIT License