# Hillel Wayne - Processes :: Learn TLA+ (Highlights)  ## Highlights - ---- MODULE module\_name ---- \* TLA+ code (* --algorithm algorithm\_name variables global\_variables process p\_name = foo variables local\_variables begin \* pluscal code end process process p\_group \in bar \* set variables local\_variables begin \* pluscal code end process end algorithm; *) ==== - so all processes in a behavior *must* be comparable and *should* be unique. - You can get a process’s value with `self` - Variables declared in a process scope are local to *that process*. - If you use `\in` for the variables, TLC will create one state for each combination of initial states in each process. - Is there a way to prevent a step from running? We can do this with `await`: