volume_mute
A - B reads as
publish date: 2022/07/12 12:06:00 GMT+10
volume_mute
A minus B
A difference B
A excluding B
A not B
Correct Answer
A difference B
Explanation
The difference of two sets A and B in that order is the set of elements that belong to A but that do not belong to B. We denote the difference of A and B by the set A – B, and read it as “A difference B.”
Reference
Introduction to Differential Calculus (Systematic Studies with Engineering Applications for Beginners) - 2012