Peter Holmes wrote: ↑March 23rd, 2020, 11:56 am
GE Morton wrote: ↑March 23rd, 2020, 10:44 am
All three of those formulations are truth-value equivalent. What is explicitly missing in your second two is the "we want goal Y." But that we want goal Y is implicit in the concept of a goal --- a goal is something we seek, that we want. Hence, that we want goal Y is implicit in your two formulations.
Not so. 'This action leads to this outcome' in no way implies that anyone wants this outcome.
You're right that "This action leads to this outcome" does not imply that anyone wants that outcome. But we are not speaking of generic outcomes, or events. We're speaking of goals. I'd assumed the outcomes to which you were referring were goals; otherwise the proposition would have been irrelevant to the thread.
The 'if we want ...' is critical. And the claim that 'goal Y' implies 'wanting goal Y' is false.
Really? What do you think a goal is, other than something someone desires and seeks? Saying that Alfie's goal is Y, but he doesn't want Y, is self-contradictory.
And the "ought" in the first formulation is the instrumental "ought": it simply means that X is necessary, or effective, for attaining Y. Or perhaps that X is the best available method, in the circumstances, for attaining Y. All of those claims can be objective.
So what? It's wanting Y that matters. That action X leads to outcome Y may well be true, so that the assertion that it does is objective. But that isn't what my OP was about. I'm asking what could make 'slavery is morally wrong' objective. Nothing you've said addresses that question.
Peter, I've already agreed that not everyone will embrace the goal I proposed. I've argued that those who don't are amoral, and have no desire or interest in a morality. But that fact doesn't render the theorems of a moral theory --- moral principles and rules --- subjective. They are objective
if whether they advance the declared goal is empirically determinable. To say that slavery is wrong is to say that it frustrates that goal. Whether it does or not is objective. That not everyone embraces that goal is immaterial.
And your mistake is in thinking that every assertion has a truth-value, so that 'slavery is morally wrong' is either true or false.
Oh, I've never claimed that every proposition has a truth value. "Colorless green ideas sleep furiously" (Chomsky) has no truth value. Every cognitive proposition does, however (by definition). "Slavery is morally wrong" is a cognitive proposition. It is true if slavery is incompatible with a moral goal, and is only meaningful with reference to some moral goal or standard. All instrumental, advisory propositions are meaningful, and have truth values, only with reference to some goal or standard.
Also implicit in every goal --- something we seek, that we want --- is that we also want whatever is necessary or most effective in attaining that goal. If Alfie declares that he seeks goal Y, and X is the best, or only, means of attaining Y, and Alfie elects not to do X, he contradicts himself --- he does not actually seek Y.
As I said above, this claim is simply false. To want and say we want an outcome, and to know that an action leads to that outcome, and yet not to perform that action - is not a contradiction.
Yes, it is. We can infer a proposition from an action, or an inaction. If Alfie says "My goal is Y," and declines to do X, when X is necessary for Y, then we can infer "I don't want to do X." Which contradicts that Y is a goal of his.
Of course, someone may decline to perform some action X necessary for Y because it conflicts with some other goal of his, Z. Or conflicts with it at a given time, but may not later. But if he never is never willing to do X, then he has abandoned the goal Y. One cannot consistently claim "I want Y, but don't want X," when X is necessary for Y.
In the real world, of course, these decisions can get quite complicated and difficult, because many actions can have consequences affecting more than one goal. They can be difficult, but there will usually be a right --- optimum --- answer, and it will be objective.