👉 In computational complexity theory and related areas of computer science, a preoccurring event or occurrence is an event that occurs before another event. In other words, it is an event that occurred earlier than its predecessor. For example, if we have two events: 1. Event A - "The sun rises" 2. Event B - "The moon sets" If Event B precedes Event A, then the preoccurring event (Event B) is called a preoccurrence of Event A.
