From: Nam Nguyen on
Marshall wrote:
> On Jun 14, 8:33 pm, Nam Nguyen <namducngu...(a)shaw.ca> wrote:
>> Marshall wrote:
>>> On Jun 14, 8:28 pm, Nam Nguyen <namducngu...(a)shaw.ca> wrote:
>>>> Marshall wrote:
>>>>> On Jun 14, 7:36 pm, Nam Nguyen <namducngu...(a)shaw.ca> wrote:
>>>>>> Marshall wrote:
>>>>>>> On Jun 13, 9:32 am, Nam Nguyen <namducngu...(a)shaw.ca> wrote:
>>>>>>>> In all that _Marshall still doesn't have any valid argument_ for his statement
>>>>>>>> that x=x is true in _all_ contexts of FOL reasoning.
>>>>>>> It's true in all contexts in which there isn't anything that is not
>>>>>>> equal to
>>>>>>> itself. Can you find a context where x is not equal to x? Please show
>>>>>>> me an x, any x, that is not equal to itself. Go on, Potato Chip,
>>>>>>> show me one.
>>>>>> So, Marhsall, does the-thing-that-doesn't-equal-itself equal itself,
>>>>>> mathematically speaking?
>>>>> What thing are you speaking of?
>>>> Good technical answer Marshall, for once. So what is the x thing were
>>>> you talking about when you asked "Can you find a context where x is not
>>>> equal to x?"?
>>> I thought that *you* were the one claiming that x=x is not true in
>>> all contexts.
>> I'm still claiming that. What have I just said that made you think
>> otherwise?
>
> The fact that you asked me about the thing that you claim exists,
> and I claim doesn't exist.

Where above did I _claim_ anything exist? I only asked you the question:

>>>>>> So, Marhsall, does the-thing-that-doesn't-equal-itself equal itself,
>>>>>> mathematically speaking?

And I only praised you in your answering (in question form) "What thing
are you speaking of?" that you couldn't know what I was asking you, in
_the exact same manner_ I couldn't know what you meant when you asked to
demonstrate x=x.

In summary your belief that x=x is true in all case is making as much
sense as asserting the-thing-that-doesn't-equal-itself equals itself,
which is really _nonsensical_, mathematically speaking.



From: Marshall on
On Jun 14, 9:25 pm, Nam Nguyen <namducngu...(a)shaw.ca> wrote:
>
> Where above did I _claim_ anything exist?

The claim that x=x isn't always true is a claim that there exists some
thing that is not equal to itself.


Marshall
From: Nam Nguyen on
Marshall wrote:
> On Jun 14, 9:25 pm, Nam Nguyen <namducngu...(a)shaw.ca> wrote:
>> Where above did I _claim_ anything exist?
>
> The claim that x=x isn't always true is a claim that there exists some
> thing that is not equal to itself.

What I asked you:

> So, Marhsall, does the-thing-that-doesn't-equal-itself equal itself,
> mathematically speaking?

So, now you seem to have reversed your answer and claim "Yes" it's true
the-thing-that-doesn't-equal-itself equals itself!

I mean couldn't you give a clear cut answer "Yes" or "no" to my question?
After all, you'd believe whatever the-thing-that-doesn't-equal-itself is
it must equal to itself, right?
From: Marshall on
On Jun 14, 9:42 pm, Nam Nguyen <namducngu...(a)shaw.ca> wrote:
> Marshall wrote:
> > On Jun 14, 9:25 pm, Nam Nguyen <namducngu...(a)shaw.ca> wrote:
> >> Where above did I _claim_ anything exist?
>
> > The claim that x=x isn't always true is a claim that there exists some
> > thing that is not equal to itself.
>
> What I asked you:
>
>  > So, Marhsall, does the-thing-that-doesn't-equal-itself equal itself,
>  > mathematically speaking?
>
> So, now you seem to have reversed your answer and claim "Yes" it's true
> the-thing-that-doesn't-equal-itself equals itself!
>
> I mean couldn't you give a clear cut answer "Yes" or "no" to my question?
> After all, you'd believe whatever the-thing-that-doesn't-equal-itself is
> it must equal to itself, right?

There is another possibility you haven't mentioned, and that
is that there is no thing which is not equal to itself, no matter
the model. This happens to be the possibility that is actually true.

In formal language, that is written as follows:

x=x

A lovely little statement that happens to be true in every model.


Marshall

PS. Or "Ax:x=x" if you want to get pedantic, which pretty much
no one here ever does.
From: herbzet on


Aatu Koskensilta wrote:
> Daryl McCullough writes:
>
> > Yes, don't blame Marshall, blame me.
>
> I blame associate professor Chris Menzel.

I blame Bush.

--
hz