[OS X TeX] Latex symbol for "define equal"
Ettore Aldrovandi
ealdrov at mail.math.fsu.edu
Sun Aug 19 22:44:08 CEST 2018
> On Aug 19, 2018, at 05:53, Themis Matsoukas <tmatsoukas at icloud.com> wrote:
>
>>
>> BTW, the last time I used \equiv for defining something (something like $E_{d,\gamma}f\equiv f$, a referee swatted it down. :=)
>>
>
> …and good to know that \equiv is unacceptable :)
I tend to not use \equiv, but rather favor := (or even = with ‘def’ on top) for an “equal by definition,” where in effect the term on the left is introduced for the first time. The \equiv lends itself better to express an identity between two terms. In other words, and extending a bit, \equiv expresses the idea of a “canonical isomorphism,” and therefore \cong (or some such) just is an isomorphism.
My two math cents.
—Ettore
Ettore Aldrovandi
Department of Mathematics, Florida State University
1017 Academic Way * http://www.math.fsu.edu/~ealdrov
Tallahassee, FL 32306-4510, USA * * aldrovandi at math dot fsu dot edu
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