Symbols:Greek/Epsilon/Element of Set

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Element of Set

The notation for an object being an element of a set uses a stylized form of the letter $\epsilon$:

$x \in S$, $S \owns x$

This notation was invented by Peano, from the first letter of the Greek word είναι, meaning is.

The $\LaTeX$ code for \(\in\) is \in .

The $\LaTeX$ code for \(\owns\) is \owns  or \ni.