3 ms·
In the old days of typesetting, folks actually did use an epsilon for \in! Of course, these days with LaTeX, it would be very odd to see that.
by reikonomusha 7y ago
In the old days of typesetting, folks actually did use an epsilon for \in! Of course, these days with LaTeX, it would be very odd to see that.
- kmill 7y agoThe set membership symbol is called a lunate epsilon. As I half remember, someone used the Greek version of the first letter of the Latin word "est," meaning "is."