👉 The term "exteriority" in mathematics refers to a property or condition that an object possesses, which is not directly observable from within it. This concept arises when we consider the properties of objects outside their immediate context, such as their mathematical structure or physical form. For example, if we look at a cube, its exterior can be observed by looking at the corners and edges alone, but these are not the only aspects that distinguish the cube from other cubes. Similarly, a ball is considered to
