Definitions
,
Results
,
Conjectures
▾
Set of symbols
▾
Alphabet
▾
Deduction system
▾
Theory
▾
Zermelo-Fraenkel set theory
▾
Set
▾
Binary cartesian set product
▾
Binary relation
▾
Map
▾
Operation
▾
N-operation
▾
Binary operation
▾
Enclosed binary operation
▾
Groupoid
▾
Semigroup
▾
Monoid
Map kernel
Formulation 0
Let $G$ be a
D265: Monoid
such that
(i)
$I_G$ is an
D39: Identity element
in $G$
Let $f : X \to G$ be a
D18: Map
.
The
kernel
of $f$ with respect to $G$ is the
D11: Set
\begin{equation} \{ x \in X : f(x) = I_G \} \end{equation}
Also known as
Kernel, Null space
Results
»
R3901: Domain of map to monoid equals union of kernel and support