Constraint Minimum
The constraint Minimum ensures that the minimal value among those assigned to the variables of a specified list $x$ respects a numerical condition.
In PyCSP$^3$, we must call the function Minimum() that allows us to pass the variables either in sequence (individually) or under the form of a list. The object obtained when calling Minimum() must be restricted by a condition (typically, defined by a relational operator and a limit).
As this constraint is quite similar to constraint Maximum, we invite the reader to see the page concerning it.