If a set has closure with regards to certain operations then any solution that is obtained using those operations must belong to that set.
In a group with closure the solution to the operation must be a number from the same set. The set of integers and the set of rational numbers are closed under addition. So the sum of two (or more) integers must be an integer, the sum of rational numbers must be a rational number.
Expecr them to continue to plan and attemp escape
Expect the detainees to disrupt detention operations.
Expect them to disrupt detention operations.
Expect them to disrupt detention operations
Expect them to disrupt detention operations
Expect them to disrupt detention operations
Expect them to disrupt detention operations.
Expect them to disrupt detention operations.
Expect them to disrupt detention operations.
expect them to disrupt detention operations
We fear - or are suspicious of - what we don't know and understand. If we don't know what to expect or how our words will be interpreted, we are rightly cautious. (The solution, of course, is to overcome our ignorance)