Definition
Logical condition
A logical condition is a true-or-false requirement used to decide which choices are allowed.
What it means
Treat each condition as a gate with a yes-or-no test. A choice passes only when the required test is true. Read combined words carefully, because “and” and “or” allow different sets of choices.
Remember it
A condition is a gate: the choice enters only when the test says true.
Example
The condition is “the whole number is even and greater than 10.” Among the numbers 9, 12, and 15, only 12 passes: it is even and it is greater than 10.
Watch for
The everyday word “condition” can mean a state, such as weather or health. Here it means a true-or-false mathematical requirement.
Common mix-up
A constraint is the restriction on the answer. A logical condition is the true-or-false test used to express or check that restriction.
Exact meaning
A logical condition is a statement about an object or value that can be true or false and is used to decide whether that object or value is allowed. Conditions can be combined with “and,” “or,” “not,” “exactly,” “at least,” and “at most.”