Definition:Multiplicative Relation
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Definition
Let $L = \struct {S, \wedge, \preceq}$ be a meet semilattice.
Let $\RR$ be a relation on $S$.
Then $\RR$ is multiplicative (relation) if and only if
- $\forall a, x, y \in S: \paren {\tuple {a, x}, \tuple {a, y} \in \RR \implies \tuple {a, x \wedge y} \in \RR}$
Sources
- Mizar article WAYBEL_7:def 7