Re: Self-Refrential 2

["George Dance"]

Peter_Smith wrote:
> Khodaeifar wrote:
>
> > For example "This is a sentence" is not a sentence since it is equivalent to
> > .....is a sentence) is a sentence) is a sentence) whit no beginning.
>
> No. Given that the context makes it clear that the demonstrative "this"
> in
>
>       This is a sentence
>
> is pointing to that sentence I've just displayed -- imagine, here I am,
> pointing to the sentence on the screen --- then that is true so long as
>
>      "This is a sentence" is a sentence
>
> is true (since what "this" is pointing to is the sentence which we've
> now given a quotation-name for). And that second displayed sentence is
> plainly true.

Oh?  Why is "'This is a sentence' is a sentence." 'plainly true'?
Since Khodeifar does not think it's 'plainly true', don't you think you
owe him some reason for saying that? 

> So the first one is.