 According to this mode, the affirmation of man is the negation of angel and vice versa (affirmatio enim hominis negatio est angeli, negatio vero hominis affirmatio est angeli, I.444b). This mode illustrates Eriugena’s original way of dissolving the traditional Neoplatonic hierarchy of being into a dialectic of affirmation and negation: to assert one level is to deny the others. In other words, a particular level may be affirmed to be real by those on a lower or on the same level, but the one above it is thought not to be real in the same way. If humans are thought to exist in a certain way, then angels do not exist in that way.