The main point we are actually stuck on is whether metaphysical evidence (I assume this is synonymous with logical reasoning?) is premised on assumptions or some statement of truth. You claim the latter, but haven't explained how they can be true or given an example of some true premises. I can't actually think how they could be true, as "truth" is a philosophical concept, isn't it? I can't see how a philosophical concept can relate in anyway to something that we can't even touch/hear/see/measure. Indeed, there's probably philosophical stances that claim that there is no reality at all. So we can't even be sure if there is such a thing as reality.Mr.Samsa wrote: As a show of good faith, I'll start it off: your main problem with claims about reality is that you don't think we can "access" reality so we can't say anything about it. Perhaps the bit you're getting stuck on is that we're only developing coherent and plausible views of what reality could be, and we weigh the evidence for and against various views. If it helps, think of it more as attempting to rationally justify claims about reality rather than some kind of deep deep space mission where we explore the depths of noumena in crazy space suits.
Another point of contention is as you state above. Even if you could convince me that logical reasoning can be based on some truths about underlying reality, then we move to the concept of probability. I don't see how you can get probability without knowing the extent of the set that you are comparing against. In fact, it's probably reasonable to say that the set of possible realities is infinite. In that case, probability is meaningless, I would imagine.
Following on from that idea of infinite possible realities, is another point of contention. You claim that by eliminating a logically nonsense metaphysical position, that tells us something that reality can't be. If we ignore the bit about assumptions and truths above, then this is virtually a useless bit of "evidence". I'm not entirely sure on this, but I'd suspect that infinity minus 1 is still infinity. That is, before your "evidence" there were an infinite number of possible realities. And after your "evidence" there are still an infinite number of possible realities. If this is the case, then we haven't actually learnt anything of value at all about reality.
I've written the above as a kind of summing up of the argument. I'm not particularly interested in continuing the debate, as it will just degenerate into the same as before, which you throwing accusations around about lying and misrepresentation and arguably misrepresenting my positions. I'm not really interested in that. I've got better things to do with my time.