fast;159631 wrote:I just thought he was implying he has a deceased sister. But if he never had a sister, then fine.
I came to the conclusion that he does not have (nor ever has had) a sister, and I base that conclusion off of what he says, and what he says is, "My sister does not exist, but she is not fictional." I bet you didn't come to that same conclusion, did you?
But if someone thinks Santa Claus does not exist, then he should be saying more strictly,
It is not the case there is a Santa Claus: ~(Ex) Sx
But it is just plain wrong to say things like, "Santa Claus is fictional." That does
violate logic because it says there is something that is Santa Claus and is fictional: (Ex) (Sx and Fx). But this is clearly false.
[QUOTE=fast;159631] But, you did respond about Nixon. I also bet you think Nixon doesn't exist, and like I said, he does. He is the 37th President, is he not?[/QUOTE]
I agree. Again, I just thought Kennethamy was implying he has a sister who is now deceased, on the same lines that Nixon used to be president of the USA.
[QUOTE=fast;159631] The point is it's not the case that Kennethamy has a sister,[/QUOTE]True.
[QUOTE=fast;159631] and it's also not the case that his sister is fictional.[/QUOTE]
False. Now you are saying that Ken has a sister that is not fictional. Or, that it is not the case that his sister is fictional, which either means,
(Ex) (Sx and ~Fx) or
(Ex) ~(Sx and Fx)
Either way you are implying his sister exists.
[QUOTE=fast;159631] In other words, Kennethamy does not have a sister,[/QUOTE]
[QUOTE=fast;159631]and Kennethamy's sister is not fictional.[/QUOTE]
False again. You are saying Ken has a sister that is not fictional.
[QUOTE=fast;159631] My point is that I thought that you thought that "Kennethamy's sister is not fictional" implies that Kennethamy has a sister, and that is why I asked about the logical rule and if you think he violated it.[/QUOTE]
That's what it does
imply. It's false if he never had a sister.
"Ken has a sister that is fictional" is false.
"Ken has a sister that is not fictional" is false.
Both are false because Ken does not have a sister, and never had one.
[QUOTE=fast;159631]My other ancillary point was that you confused what it means to say of something that it exists; hence you bringing up Nixon.[/QUOTE]
I've dealt with these issues long enough in my educational philosophical career that I am confident what I am saying is correct. I wish you would stop presuming I am confused. I am not.