While I'm on a roll, I figure I'll jot down what I have so far for my views on the relation between logic and reality. I'm trying to find some way of arguing for the position, or at least making it clearer; I'm attempting to balance listening to my intuitions with a desire to communicate clearly to others and be sufficiently critical of myself. So, here's the argument.
As stated earlier in my post on individuation and logic, logic requires individuals: things which are undivided in themselves (law of identity) and divided from everything else. I mentioned that this entails a partition of the world. I intend this in a mathematical sense: any application of logic would entail a partition P, which is a set of elements {a, b, . . ., z} such that for every x and y in P, the intersection of x and y is the null set, and the union of everything within P is the universe (everything, pretty much). The disjointment thesis I take to follow readily from the law of non-contradiction (there is an exact isomorphism between logic and set theory, from which I get the idea of a partition, where "and" -> "union", "or" -> "intersection", "not" -> complement, "false" -> "null set", and "true" -> "universal set").
The universality thesis I take to be a bit harder to prove. It's easy if you allow the law of the excluded middle, but as that is contentious I propose a different proof. Let's say that the union of all the elements in P does not contain everything. Then, there is something in the universe which is not in P (P', or ~P, or something of the sort). But then we can form the partition R from the union of P and ~P. ~P will be disjoint from everything in P, and so everything in R will be disjoint from everything else. Further, the union of P and ~P now does contain everything and by definition is the universal set. Therefore, R is the partition which we were looking for. I guess this ends up being an argument for the law of the excluded middle if one adopts the strict logical starting point.
So, my first argument is simply this: I don't see why I am forced to believe that this accurately describes the universe. Therefore, I am entitled to pursue a different research project. This I take to be the solidest, though of course least persuasive position.
The second argument is that it is possible that the universe does not hold up to such a partition. If this is possible, it is possible in some possible world. But if it is possible in some possible world, then (assuming our modal logic is at least reflexive) from that world it would be possible that the universe could be partitioned. If it is possible that the universe could be partitioned, then this would create a partitioning from the standpoint of that world. So the universe would be partitioned from the standpoint of that world, and it would not be true there that the universe would be non-partitioned. Therefore, if it is possible for the world to be non-partitioned, then it is non-partitioned. Ergo, etc. I think I'm playing fast and loose with the modal stuff here, and I need to work out details at some point, but that's at least the broad outline.
The third argument is the least developed. I'm not sure whether it confirms or denies my senior paper (which was on the inapplicability of Goedel's Theorem to reason; the key ambiguity being the definition of reason). More or less, here is how it would go: the elements in our partition would be isomorphic to some formal system which can express arithmetic. This is due to the fact that any decent partition actually deals with arithmetic and other mathematical facts. However, in this case Goedel's Theorem applies, and there exists some truth in the universe which has not been accounted for. But the partition was supposed to be universal. I think that I may be equivocating on "universal" throughout the various definitions, and this gets into the problem of the one and the many (is "universal" the most general thing underlying everything, or is it the collection of all the particulars?). Of course, I think this problem gives a pretty good impetus to the rejection of partitioning itself.
So, not really any fully developed ideas, but some which I have been batting around.