From: Teh Oh Kian <mr_teh@hotmail.com>
To: Teacher2Teacher Public Discussion
Date: 2000122712:57:51
Subject: Re: Re: Math Symbols

I agree that the symbol is used to denote congruence in Number Theory
and as symbol of 'equivalent to' in Logic and some other disciplines
of Mathematics. I would like to remind that as far as I have learnt in
Mathematics, it is also used to denote identically equal to.
This symbol has a similar characteristic as the symbol ( , ). For
example, (4, 6) can mean a cartesan point with co-ordinates 4 and 6 or
can mean an open interval of real numbers from 4 to 6(not including 4
and 6) and 2 = (4, 6) meand the greatest common divisor of 4 and 6 is
2.
I hope I have not given any incorrect information.
Teh

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