 From the above it can be concluded that all, or at least most, paradoxes of self-reference share a common underlying  structure—independent of whether they are semantic, set-theoretic or epistemic. Priest (1994) argues that they should then also share a common solution. Priest calls this the principle of uniform solution: “same kind of paradox, same kind of solution.” Whether the Inclosure Schema can in full generality count as a necessary and sufficient condition for self-referential paradoxicality is however disputable (Slater, 2002; Abad, 2008; Badici, 2008; Zhong, 2012, and others), hence not all authors agree on the principle of uniform solution either. 