VirOptimus
A nihilist who cares.
Neither 1 or 2 is true or supported in the first.Of course they are. If they are not then tell us what invalid inferences are being employed?
You pose as someone who knows logic and philosophy, but a cursory reading of your posts demonstrates that you have no idea what you are talking about. You just make counter-assertions that you never support, and then pat yourself on the back. The fact that you don't think those arguments are valid shows that you don't understand even the most elementary logical inferences.
Here are his arguments with the formal inferences identified:
Epistemic Argument for Moral Realism (1)
(1) If moral facts do not exist, then epistemic facts do not exist. {premise}
(2) Epistemic facts exist. {premise}
(3) So moral facts exist. {modus tollens; 1 & 2}
(4) If moral facts exist, then moral realism is true. {premise}
(5) So moral realism is true. {modus ponens, 3 & 4}
Epistemic Argument for Moral Realism (2)
1) epistemic realism is true; {premise}
2) if epistemic realism is true, then moral realism is true; {premise}
c) hence moral realism is true. {modus ponens, 1 & 2}
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