Logic fan:
7. Debating requires that both parties hold "truth" to be
objective and universally preferable.
8. Thus the very act of debating contains an acceptance of universally
preferable behavior (UPB).
Yes! This illistrates my "problem" perfectly.
In the above example, "universally preferable" essentially means "pragmatic":
This is in accordance with how the book defines it:
"When I speak of a universal preference, I am really defining what is objectively required, or necessary, assuming a particular goal."
In other words, in order to debate and reach valid conclusions, it is pragmatic (universally preferable) to employ logic.
We can refer to that as UPBD1 (UPB Definition 1).
UPBD1="pragmatic behavior"
Now, here's where the trouble starts.
UPB can also be defined as "Stef's methodology for evaluating ethical propositions."
Let's call this UPBD2 (UPB Definition 2).
The question I would ask at this point, is what does the methodology have to do with basic pragmatism? It seems to me, that the methodology involves a LOT MORE than just basic pragmatism. It's NOT merely a test of pragmatism. There are all sorts of other considerations involved in the methodology (we don't need to enumerate them, since I'm pretty sure everyone would agree with that assessment).
I guess my whole point here is that, in theory, we can be logical and pramatic about debating AGAINST those OTHER considerations that stef incorporated into his overall methodology. UPBD2 isn't just about basic pragmatism. It involves a lot more, and thus argueing against those additional issues and factors doesn't contradict a basic acceptance of pragmatism.
In summary, one can employ UPBD1 when arguing against UPBD2.
Does that make sense?