👉 In mathematics, a nondeferable object is an object that cannot be expressed as a finite sum of finitely many other objects. It is often used in the context of topology to refer to a space that has no countable basis or a closed subset of a Hausdorff space without isolated points. For example: - In algebraic geometry, nondeferable objects are needed for defining local rings and schemes. - In logic, nondeferable objects are needed for defining certain types of
