Final answer:
Using the transitive property, if l is greater than m and m is greater than n, then it must be that l is greater than n.
Step-by-step explanation:
Given the two inequalities l > m and m > n, we can infer a relationship between the values l and n using the transitive property of inequality in mathematics. This property states that if one value is greater than a second value, which in turn is greater than a third value, then the first value must be greater than the third value. Therefore, l > n must be true.