👉 The term "firster" is a term used in mathematics to refer to an element or object that precedes another. It is often used in algebra, where it refers to the smallest positive integer that is not already part of a set. In other words, "firster" means "the first thing or something preceding another." For example, if you have two sets: A and B, and you want to find the smallest element that is not already in set A but is in set B
