KGO wrote:Even if you're thirsty or cold you can't say that you "ought" to drink or warm yourself because that would be assuming that you ought to satisfy your desires. Since you can't derive that you ought follow your desires from any "is", you can't say that you "ought" or "should" drink if you're thirsty or warm yourself if you're cold. All you can say is that if you want to satify X desire, you must do Y. That is a hypothetical imperative and not an "ought".
Oughts are categorical imperatives and that is what the is-ought problem points out.
When Toge asks if there is such a thing as "ought", then he's obviously not asking if there exists imperatives that are conditional. That would just be silly.
But here's where you're confusing me. If Toge is asking about unconditional imperatives, then they clearly can't be derived from facts, otherwise they would be conditional on those facts.
Even a categorical imperative is not unconditional. The categorical imperative is contingent on the existence of beings which form maxims.
Note: I'm discussing this in Kantian terms because that's how you seem to be deploying the concepts of hypothetical/categorical imperative.
EDIT: Note that by "desired ends", I did not mean ends that the agent desires. Perhaps that caused some confusion. I lack an actual term for it, but I mean ends that "ought" to happen.
Ok, but I gave an example of an end that "ought" to happen. What's tricky here is that you are only taking as "ought" some kind of strict unconditional "ought." But of course such an "ought" couldn't derived from a fact, otherwise it would be conditional on that fact. In this sense, claiming that you can't derive an "ought" from an "is" is pretty trivial.
Of course, here we see another ought, which is why you can't derive an ought from an is because you can only say what you ought to do if you know what ought to happen and what ought to happen is not an "is". Ergo, there are no oughts.
1. You can only say X if you know X.
2. X is not Y.
Therefore: There are no X's.
I don't even need to point out how problematic this argument is. But let's change the conclusion to something not so strong:
1. You can only say X if you know X.
2. X is not Y.
Therefore: You can't derive X from Y.
Even this doesn't follow! I could know X because of Y even if it isn't Y. We make this kind of inference every day! Granted, for these inferences we need a connecting premise, e.g.
1. There is a loud whistling noise outside my door.
2. If there is a loud whistling noise outside my door, that means the tea is ready.
Therefore: The tea is ready.
Now, loud whistling noises are not the readiness of tea! Not at all! Yet somehow we're getting from one thing to another thing when those things aren't identical.
So what it is incumbent on the proponent of 'oughts' is to provide a premise along the lines of the second premise in this argument. It is incumbent on the denier to show why this kind of connecting premise is impossible when it comes to 'is' and 'ought' (presumably by showing that all such premises require a further 'ought' to establish). So far, it's not clear you've done so.
On the other hand, in Kantian morality such a connecting premise is posited: namely, that 'oughts' are a result of the rational intentionality inherent in agency. If you will to perform an end, you are bounded rationally to employ some means to that end. Otherwise there is a strict volitional incoherence in your willing.