russel's paradox
Tags: bertrand russel
Most sets are not sets of themselves, but some sets are self-swallowing. For example, a set of {1,2,3} is not a set of itself, but a set of everything NOT {1,2,3} is self-swalloing
Tags: bertrand russel
Most sets are not sets of themselves, but some sets are self-swallowing. For example, a set of {1,2,3} is not a set of itself, but a set of everything NOT {1,2,3} is self-swalloing