codual
Adjective
Meaning
codual (not comparable)
(mathematics, of a relation) complement dual.
For a relation
P
⊆
A
2
{\displaystyle P\subseteq A^{2}}
, the codual relation is defined as
P
c
d
=
{
(
x
,
y
)
∈
A
2
∣
(
y
,
x
)
∉
P
}
{\displaystyle P^{\mathit {cd}}=\left\{(x,y)\in A^{2}\mid (y,x)\not \in P\right\}}
.