ThmDex – An index of mathematical definitions, results, and conjectures.
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Definition D2788
Confounder digraph
Formulation 0
A D2696: Digraph $G = (X, \mathcal{E})$ is a confounder digraph if and only if
(1) $X = \{ x, y, z \}$
(2) $\mathcal{E} = \{ (z, x), (z, y) \}$