ThmDex – An index of mathematical definitions, results, and conjectures.
Set of symbols
Alphabet
Deduction system
Theory
Zermelo-Fraenkel set theory
Set
Subset
Power set
Hyperpower set sequence
Hyperpower set
Hypersubset
Subset algebra
Subset structure
Hypergraph
Graph
Path graph
Finite path graph
Definition D4545
Triangle graph
Formulation 0
A D778: Graph $G = (X, \mathcal{E})$ is a triangle graph if and only if
(1) $X = \{ x, y, z \}$
(2) $\mathcal{E} = \{ \{ x, y \}, \{ y, z \}, \{ z, x \} \}$