# Symbols:Greek/Iota/Inclusion Mapping

Used by some sources to denote the mapping on $S$ to $T$ where $S \subseteq T$ defined as:
$\iota_S: S \to T: \forall x \in S: \map {\iota_S} x = x$
The $\LaTeX$ code for $\iota_S$ is \iota_S .