Clique
= Clique
{wiki=Clique_(graph_theory)}
A clique in a graph is a vertex set whose induced subgraph is complete. A copy of $K_r$ is therefore an $r$-vertex clique.
= Clique
{wiki=Clique_(graph_theory)}
A clique in a graph is a vertex set whose induced subgraph is complete. A copy of $K_r$ is therefore an $r$-vertex clique.