👉 Diskinness, also known as "diskinicity" or "diskineness", is a concept in mathematics that refers to a property of an object or set which can be expressed by two different properties. It is closely related to the concept of being "closed" and "open". In other words, it's the ability to express both openness and closure simultaneously. For example, consider the set S = {x ∈ ℤ | x < 10} (where ℤ is
