👉 In mathematics, "nonsubstitutable" is a term used to describe an object that cannot be made from two or more other objects. For example, if you have apples and oranges, you can't make both of them because they are not interchangeable. In terms of programming, the term "nonsubsistent" refers to an object that does not exist in a specific context or environment. It is often used in computer science to describe something that doesn't fit into a predefined structure or set of
