(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.
----- Original Message -----
From: Bruno Marchal
To: [email protected]
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: [email protected]
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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