The expression “reversed predication” is not common. It is used in the field of symbolic logic to define complex conditions of negation. There are two key places where reversed predication, under a different, more general application, plays a key role: (1) George Spencer-Brown’s non-numerical calculus (Laws of Form, 1969), as applied to the “sorites” of Lewis Carroll, and (2) Slavoj Žižek’s ide...