On 17 Jan., 23:59, Virgil <vir...@ligriv.com> wrote:
> > Which term of PPP...PPP(N) is prohibited? > > Why should any of them be prohibited? > > NO matter how many times one iterates it, it will never lead to a set of > all sets, or anything else that is a problem. >
Infinitely many iterations are not different from oo + 1 iterations. That means the power set operation will no longer increase the cardinality.