 There are two problems with this, however. First, this would do nothing to rule out certain psychophysical laws, such as those of the form ‘M1 → P1’. And so it couldn’t ground the completely general thesis of mental anomalism. But more importantly, Davidson himself holds that the least controversial versions of indeterminacy, having to do with diverging reference schemes, amount to mere notational variance—as he puts it, meaning is what is invariant between empirically adequate translation schemes (Davidson 1977, 225; 1999a, 81). And given that such schemes are generated through a purely mechanical permutation function (Davidson 1979, 229–30) it is a relatively simple technical trick to take these different schemes into account when formulating psychophysical laws. The laws, for instance, could be formulated with disjunctive predicates (‘P1 → (M1 ∨ M2 ∨ M3’). Or, if such predicates are considered problematic, the laws could be of the form ‘P1 → M*’, where ‘M*’ picks out the invariant element between the empirically equivalent theories. So it is not at all clear that indeterminacy in and of itself is capable of supporting an across-the-board rejection of strict psychological or psychophysical laws. And Davidson ultimately acknowledges this, in stating that anomalism would hold even if indeterminacy didn’t (Davidson 1970, 222).