How do I make a \therefore in *plain tex* ?

[Steve Litt]

Hi all,

Right now I use the following:

\def\therefore{\bullet^\bullet\bullet\quad}

It kinda sorta works, but it's ugly.

Is there a better way to make a \therefore in Plain TeX?

Thanks,

SteveT

Steve Litt 
Autumn 2022 featured book: Thriving in Tough Times
http://www.troubleshooters.com/bookstore/thrive.htm