I would normally agree had not the subject been religion where it there is no reason even to assume that particular possibility.
It doesn't make any difference what the subject is because it is NOT necessary to assume anything about possibilities.
If A, then Not-B
If B, then Not-A
So it cannot be the case that both A and B are true. At most one is true. This means that, at least, none are true.
It doesn't matter what we plug in for A or B, or whether either A or B is logically possible.
Must!!! Your adding a word that does not belong just as he did.
No, that wasn't either Gonzo or I that inserted "must," it was you:
Because two claims contradict each other does not mean that one must be true. It only means that two claims contradict each other.
Jusst because tw claims contradict each ther does not imply one must be true.
Why would i assume that one is true?
then do not tag bits on the end that imply a such.
And that was just the most recent post. You were the one insisting that saying "at most one can be true" meant that at least one must be true.
What you mean to say is, " saying that at most one claim could be true implies that a minimum one could be true.
No, I did not mean to say that at all. Because it does not imply that at all. Saying that at most one claim could be true does not in any way imply that any could be true.
Depends on the subject matter which brings us back to context. When dealing with religion where none have been shown to be true then tacking on the end bit becomes nothing more than a fallacy.
A: All fairies are good.
B: All fairies are evil.
C: Fairies are more like a force of nature and no fairy is either good or evil.
D: Some fairies are good, some are evil.
IF any of those are true, then only one is. This is the same as saying at most one is true. This does not imply that any of them could be true. I'm not sure why you think it does. Would it make it easier if we added one more claim:
E: Fairies do not exist.
By adding that on we can change it from "at most one is true" to "One and only one of those claims is true."
So if fairies do actually exist (and we're not assuming they do, or even that it's possible they do), then they would fall into one of the categories of A through F (yes, C is a little fuzzy, but still applicable to all cases where fairies exist, but concepts of good and evil don't apply).
If they do not exist then they fit into category E.
Saying at most only one is true is simply admitting the implicit claim that none are true.