Just got home.

Originally Posted by
Madej
Moral realism can be understand as a multi-part thesis:
1. Moral statements attribute properties to their respective subjects, such as wrongness and goodness.
This is easily understandable because without it a moral debate is impossible. Defining wrongness and goodness is central to the ideal that objectivity exists in morality.

Originally Posted by
Madej
2. These moral properties exist. That is, at least some things in the world have these properties.
You will have to be far more specific. Technically speaking thought arises in the brain which in turn is a real thing. Obviously this does not predicate that morals are absolute or objective although it does mean thought exists physically.

Originally Posted by
Madej
3. We can sometimes know that the things which we attribute these properties actually have them.
This doesn't seem to be leading to objective morality or something that I can argue at all. It seems to me what you're doing is stating that morals are real, but whether they're real or not it does not mean that they're objective which would predicate their existence in a similar fashion to H20.

Originally Posted by
Madej
The first of which is moral platonism, which holds that moral properties are irreducible, nonphysical properties that we know on the basis of intuition.
But intuition is not objective.

Originally Posted by
Madej
We should not confuse this with the statement that we can know all normative facts on the basis of intuition. So I entirely reject an all-encompassing, ethically normative approach to intuitionism.
You really should avoid using concepts like platonism and intuitionism because these implies formal doctrines, if you're going to debate use your own descriptions of what you mean not someone else's dogma. Furthermore there's so many forms of platonism as to be ambiguous when you state it as though it has meaning.

Originally Posted by
Madej
The second of which is ethical naturalism, which holds that moral properties are reducible to non-subjective natural properties. Ethical naturalism brings with it certain nuances such as the division between analytic and synthetic formulations. Anayltic naturalism holds that it is true that "Good = [some natural property]" as matter of tautology or definition. Synthetic reductionism holds that the underlying nature of the Good can be revealed to be some natural property, e.g. in the way that Water = H20 is true.
You have failed to define the two concepts apart from one another.

Originally Posted by
Madej
I would be defending the moral platonist view.
This is meaningless until you define it more.
Unfortunately when I'm asking you to define what you mean I mean that you need to define what your claims are. Using a formal doctrine to describe your claims is insufficient for a real debate, I do not intend to debate a Wiki page on platonism. Describe what you actually mean, what your conclusion is and the reasoning that leads to it otherwise the debate is ambiguous at it's outset in which case it's impossible to be had. Given that our two philosophies are close as it is with really wordchoice being the only obvious difference to me at this point it does not seem that you're doing anything but defining subjective as objective. In which case, you can call it as you will but no debate can be had.

Originally Posted by
Madej
I take an objective fact to mean that the fact is true independent of what a mind thinks. I take morality to be objective if moral propositions describes some genuine feature of the reality rather than the psychological relations of Gods or of subjects of experience. That is not, however, to say that objective moral principles cannot hold subjective mental states.
This entire paragraph is ambiguous. Objective fact is independent of what the mind thinks, thus objective morality is independent of a mind's existence which is to essentially say, in a universe of rocks there still exists moral truths. Is that what you're saying?