👉 Stalked is a term used in the field of mathematics and computer science to describe an object that is both a subobject of a larger set and its own subset. In other words, it is a property or attribute possessed by an element that can be accessed from within itself. For example, consider the following mathematical concept: ``` n = 4 a = [1, 2, 3, 4] b = {1, 2, 3, 4