(November 29, 2010 at 9:17 am)Lethe Wrote: I don't think I've ever encountered a syllogism that stood up to scrutiny.
There are an indefinite number of syllogisms that withstand scrutiny, actually. It is actually not that hard at all, if one has learned the rules and principles of logic. But for that very reason it is hard for most people because they are not taught that, by others or themselves. (One of my chief complaints about the education system is that it teaches students what to think but never how to think.) Unless one's post-secondary education calls for it, one has to learn it autodidactically.
Take the Wikipedia example you referenced:
1. All men are mortal.
2. Socrates is a man.
3. Socrates is mortal.
That is a perfectly valid argument. But you raised a (presumably) hypothetical objection to it: "Socrates is not alive, nor was his life or death proven without a shadow of a doubt. And mortality is really only proven with death." With this objection you highlight an important categorical distinction. While the argument is perfectly valid, the question remains whether or not it is sound. Those are two different things. An argument is valid if the conclusion logically follows from the premises, that is, the truth of the premises logically guarantees the truth of the conclusion. But are the premises actually true? That speaks to the soundness issue, a more difficult test. An argument is sound if it is both valid and the premises are actually true. (It is worth noting that a valid argument can be unsound, but a sound argument cannot be invalid; e.g., if the premises are actually true yet the argument is invalid, then it is unsound.)
The problem with the arguments presented in this thread is that they did not even pass the validity test, never mind the soundness test. But then again, that was the very point I was making to Paul the Human; all arguments whose conclusion is "Therefore, God does not exist" fail the validity test (which may be why there are so few strong atheists).
(November 29, 2010 at 10:47 am)Captain Scarlet Wrote: As for defeaters around the logical problem of evil and reasonable unbelief, I am not sure that they are as strong as you indicate. They largely rest upon adding a third premise which is consistent with both a god being all good and there being evil or hell, etc.
If you would like to try, I am willing to show you why that fails to rescue such arguments. At this point I am unable to envision what sort of argument you are thinking of.
(November 29, 2010 at 10:47 am)Captain Scarlet Wrote: As for the non-sequitur on freewill / divine commandments, I think that is wrong. There is a problem there for the theist. Unless you want to redefine free will?
Saying that it is wrong and a problem remains for the theist does not help me see it. Furthermore, there is no such thing as "redefining" free-will; such a statement presupposes a universal and objective definition of free-will from which others deviate and shoulders an enormous burden of proof. I do not redefine free-will; I have a definition that competes with others.
Having said that, I struggle to think of any definition of free-will under which my statement fails. Whether libertarianism, determinism, or compatibilism, my statement holds. Can you show me otherwise? In pursuit of accuracy, my statement again was, "Informing a person of what his choices are and the consequences thereof does not negate his ability to freely choose according to his desires."
(November 29, 2010 at 1:52 pm)downbeatplumb Wrote: It is so unlikely that there is such a thing as a God that ...
"It is so unlikely that any deity exists" and "no deity exists" are two different things. The former is not what your conclusion was.
(November 29, 2010 at 6:19 pm)theVOID Wrote: That's not at all what he said. He was responding to the arguments against God from a Christian theological perspective.
I find it incredible that you were the only one who understood the logical context of "assume." Everyone else should be embarrassed.
theVOID Wrote:Do you want to articulate your concept [of God] specifically? Then we can poke holes in that!
Most people should already know that. I have never been coy about it. There are pages upon pages of my writings in these forums indicating clearly the God at the center of my worldview, and my every post contains a link to my web site where it is made even clearer.