👉 Axinite is a concept in mathematics and computer science, which refers to a set of finite sets that are closed under certain operations such as union, intersection, and difference. These sets can be defined recursively by specifying how elements should be combined or manipulated. For example, let's consider the set A = {a, b} (the set of all letters in English alphabet). We can define axinite A to be a set containing only the letter 'a' and 'b'. This means that