On Sat, 20 Mar 2021, Mike Skec wrote:

I was wondering if it is possible to use the "therefore" (?) and
"implies" (?) symbols using eqn.

In LaTeX this is possible using \therefore, and \implies. I can't seem
to find any method of doing this in eqn - I thought I'd ask in case I'm
missing something.

Apologies if this is the wrong place to ask this.

Go and look in the

        groff_char

manual page. They are somewhere there.  I think therefor is

        \[3d]
and
        \[tf]

What do you mean by implies

        ->
or
        =>

There are lots of variations of arrows.  If you mean the latter then

        \[rA]

You can use these in EQN directly or by defining

        implies
or
        therefore

as the appropriate thing.

Regards - Damian

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