Share Misconception: Students mistakenly believe comparison expressions use the same syntax in math, English, and logic. with FacebookShare Misconception: Students mistakenly believe comparison expressions use the same syntax in math, English, and logic. with Twitter 3 < x < 5 seems like a legitimate way to express a value of x which is greater than 3 and less than 5 but this is not valid. This statement must be separated into two different statements. More about this tip Tags Content Misconceptions Development Methods External Source Interview with Pamela Fox Other Tips By Other Tips By Pamela Fox