><<P.S. Set theory tells us that all things are things, and all real things
>have attributes. Would you call an attribute a name? Or a boundary? We also
>know that there are big differences between "real things" with attributes
>(boundaries?) and "imaginary things" (like sets of things) which need not
>have boundaries. Please say more to this issue.>>
>Set theory is not true. It is a model and only valid within a particular
>frame of reference.
More than that, set theory is itself a frame of reference. He's tripped up before even making a beginning!