TLA+

TLA+ (Temporal Logic of Actions) is a formal language used to specify, model, and verify complex systems, especially those involving concurrent processes like distributed computing or hardware design. It allows engineers to precisely describe how a system should behave over time and reason about possible states and transitions. By using mathematical logic, TLA+ helps identify potential errors early, ensuring correctness and reliability before implementation. It’s a powerful tool for designing critical systems where correctness is essential, providing clarity and rigor in documenting system behavior and catching issues that might be missed with traditional testing.