It was discovered by its namesake while he was considering Cantor's power class theorem: the result that the number of entities in a certain domain is always smaller than the number of subclasses in that domain.
There is some evidence that the first version of this problem was independently discovered by Ernest Zermelo and David Hilbert. It was discovered by its namesake while he was considering Cantor's power class theorem: the result that the number of entities in a certain domain is always smaller than the number of subclasses in that domain. Its discoverer and namesake thus developed the theory of types to explain this philosophical conundrum. FTP, identify this paradox that questions whether sets are members of themselves or not.
There is some evidence that the first version of this problem was independently discovered by Ernest Zermelo and David Hilbert.
{Russell’s} paradox