Wittgenstein, Dummett, and anti-realism It doesn't say that the use of words has nothing to do with the world. It says that it has nothing to do with recognition-transcendent things. The recognised world is the world that has something to do with language use as it is that which influences and measures it. — Michael
This, if taken seriously, is tautological: swapping in the definitions for each other, we get: "language use has nothing to do with things that have nothing to do with language use." That's obvious and uninteresting, but surely you can't mean that, so I must be making a mistake somewhere in translation; but surely you see how that interpretation comes about from the above paragraph.
The more substantive claim seems to be something like: "it's not possible for language use to have to do with things we don't recognize [meaning what?]." Well, that's just false on a charitable construal: language use can conventionally allow us to make reference to all sorts of things we have little to no understanding of, and the truth conditions that follow may be ones we aren't equipped to figure out or deal with. For example, to use the word
gold we need only isolate some substance by its extremely superficial properties – yet in doing so we refer to that substance, in all its chemical complexity, and can make true or false claims about it, even though we have no idea what that complexity is, or what it entails.
We can even not know what certain words mean, despite their use committing them to mean certain things – for instance, we may use 'Hesperus' and 'Phosphorus' to refer to the very same thing, yet not recognize we're doing so, and so fail to realize the words mean the very same thing.
our language use is identical in the situation that it does and in the situation that it doesn't, and that language use is all there is to meaning, and so nothing to do with their truth. — Michael
But language use isn't self-contained – use of a word to refer to a thing, for example, depends on the thing. If the word's use arises with respect to two different things, the usage is different – in one case it refers to one thing, and in another to the other. Again, you deny that it's about use having nothing to do with the world, but what else am I to make of your claim here? Different external circumstances, different uses.