===== Vertex neighbours =====
==== Function ====
| @#55CCEE: context     | @#55CCEE: $G=\langle V,E,\psi\rangle$ ... undirected graph |

| @#FFBB00: definiendum | @#FFBB00: $ \mathrm{dom}\ N_G = V $ |
| @#FFBB00: definiendum | @#FFBB00: $ N_G(v):=\{u\ |\ \{v,u\}\dots\mathrm{edge\ in}\ G\} $ |

==== Discussion ====
==== Parents ====
=== Context ===
[[Undirected graph]]