Peter Holmes wrote: ↑March 3rd, 2020, 6:46 am
If you're using 'right or wrong' non-morally, as 'factually correct/incorrect' seems to indicate, then presumably you mean 'true or false'. So you are really saying: 'opinions are true or false - so moral opinions are true or false'.
Yes.
But only factual assertions have truth-value. And only assertions can be objective - with public truth conditions.
Yes.
To say 'this act is morally wrong' is true or false - that this assertion of an opinion has public truth conditions and is therefore objective - merely begs the question. You're not showing that it does, you're flatly asserting that it does.
I'm not sure what question you think is being begged.
Your assumption seems to be that opinions, judgments, beliefs are not factual assertions (propositions). But they are. Calling them opinions, judgments, beliefs merely means the speaker acknowledges that he lacks conclusive evidence for the proposition, or someone else believes he doesn't. But he is still asserting a proposition, which is either true or false. E.g.:
"It is my opinion (belief, judgment) that slavery is wrong."
The embedded proposition is, "Slavery is wrong." That proposition is true or false. It is true if slavery conflicts with the axiom and postulates of the theory; it is false if slavery does not conflict with those postulates. Whether it conflicts or does not is a factual or logical matter, and is objective.
With any other subject matter this "right/wrong" would be understood as the instrumental, or factual, sense of those terms. E.g.,
"It is my opinion that we turned the wrong way at that last intersection."
The embedded proposition is, "We turned the wrong way at that last intersection." That proposition is true or false. It is true if the left turn leads away from our destination; it is false it leads toward the destination.
If the proposition embedded in the expression, judgment, belief is true (or false) then the opinion, judgment, belief is true (or false).
Moral judgments made in the context of a sound, rational moral theory are not expressions of personal values, emotional states, conditioned responses, cultural norms, or anything of the kind. They are claims that a certain act or practice is consistent or inconsistent with the axioms and theorems of that theory. Those claims are either true or false and are objective; they have public truth conditions.
And that says it all. I think our discussion has run its course. For me, at least, it's been salutary. Thanks.
Giving up so quickly? But I also enjoyed the dialogue. It has been more challenging than most here.