“…Some, but not all, versions supplement it with corollaries that further specify what kind of relation correspondence itself is. Russell, for example, took it to be congruence (1912/1946); the early Wittgenstein seems to have focused on homomorphism, while others have focused on isomorphism; Austin took it to be correlation (1950; see also Wilson 2000); others like Devitt (1984Devitt ( , 2001, Vision (2004), and Marino (2006Marino ( , 2008 have intimated that correspondence is just some kind of other generic mapping relation; and so forth. Other versions supplement (csp) with claims about how many relata the correspondence relation has (dyadic, polyadic, variable, etc.).…”