  Sylvan is explicit, though, that his “main concern is not really relevance at all—the appropriate sort of relevance is a by-product of any good implication relation, which comes out in the wash” (Routley et al. 1982, x) after a deeper diagnosis of the paradoxes. He emphasizes that what is really at issue for a successful account of a conditional is absolute sufficiency—that when \(p\) really does imply \(q\), this means that \(p\) is all that is needed for \(q\).