In mathematics, if A {\displaystyle A} is a subset of B , {\displaystyle B,} then the inclusion map is the function ι {\displaystyle \iota } that sends each element x {\displaystyle x} of A {\displaystyle A} to x , {\displaystyle x,} treated as an element of B : {\displaystyle B:} ι : A → B , ι ( x ) = x . {\displaystyle \iota :A\rightarrow B,\qquad \iota (x)=x.} An inclusion map may also be referred to as an inclusion function, an insertion, or a canonical injection.
In mathematics, if A {\displaystyle A} is a subset of B , {\displaystyle B,} then the inclusion map is the function ι {\displaystyle \iota } that sends each element x {\displaystyle x} of A {\displaystyle A} to x , {\displaystyle x,} treated as an element of B : {\displaystyle B:} ι : A → B , ι ( x ) = x . {\displaystyle \iota :A\rightarrow B,\qquad \iota (x)=x.} An inclusion map may also be referred to as an inclusion function, an insertion, or a canonical injection.
Source: Wikipedia "Inclusion map" · CC BY-SA 4.0
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