Bisimulation

Bisimulation is a concept used in computer science and mathematics to compare two systems or processes. It means that two systems can simulate each other's behavior step by step, such that for every action one system can take, the other can take a corresponding action, leading to similar outcomes. If two systems are bisimilar, they are considered equivalent in terms of their behavior, even if they look different at a surface level. This concept helps in understanding and verifying the correctness of systems like software programs, where we want different implementations to behave in the same way.