On 06 Jun 2009, at 23:54, m.a. wrote:
> (I'll be here till Tuesday.) Evidently, the symbol you are using for
> "such that" is being shown on my screen as a small rectangle. In the
> copy below, I see two rectangles before the A=, two before the B=,
> two after the A, two after the B. The UNION symbol (inverted "U")
> shows up but is followed by a rectangle in the next two examples and
> preceded by a rectangle in the last three. In checking a table of
> logic notaion, I find that the relation "such that" is designated by
> a reversed capital "E". Is this the symbol you are using? m.a.
Yes, we have a problem. There should be no rectangles at all. We have
to switch on english abbreviations. This explains the difficulty you
did have with the union ...
You could look on the archive, from here,
http://www.mail-archive.com/everything-list.domain.name.hidden/msg16531.html
the symbols are correct on my computer, but we will think on easier
mail symbols. Tell me if you see different symbols in the archive.
Best,
Bruno
> ----- Original Message -----
> From: Bruno Marchal
> To: everything-list.domain.name.hidden
> Sent: Saturday, June 06, 2009 4:36 PM
> Subject: Re: The seven step-Mathematical preliminaries 2
>
>
>
> We do have problem of symbols, with the mail. I don't see any
> rectangle in the message below!
>
> Take it easy and . We will go very slowly. It will also be the exam
> periods. There is no rush ...
>
> Have a good holiday
>
> Bruno
>
>>
>> ----- Original Message -----
>> From: Bruno Marchal
>> To: everything-list.domain.name.hidden
>> Sent: Wednesday, June 03, 2009 1:15 PM
>> Subject: Re: The seven step-Mathematical preliminaries 2
>>
>> ∅ ∪ A =
>> ∅ ∪ B =
>> A ∪ ∅ =
>> B ∪ ∅ =
>> N ∩ ∅ =
>> B ∩ ∅ =
>> ∅ ∩ B =
>> ∅ ∩ ∅ =
>> ∅ ∪ ∅ =
>>
>>
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>>
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>
> http://iridia.ulb.ac.be/~marchal/
>
>
>
>
>
> >
http://iridia.ulb.ac.be/~marchal/
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Received on Sun Jun 07 2009 - 00:41:10 PDT