===== Loopless graph =====
==== Set ====
| @#55CCEE: context     | @#55CCEE: $V,E$ ... set |

| @#FFBB00: definiendum | @#FFBB00: $ \langle V,E,\psi\rangle \in \mathrm{it}(E,V) $ |

| @#55EE55: postulate   | @#55EE55: $\langle V,E,\psi\rangle $ ... undirected graph |

| @#FFFDDD: for all     | @#FFFDDD: $u\in V$ |

| @#55EE55: postulate   | @#55EE55: $\{u,u\} $ ... not an edge |

==== Discussion ====
==== Parents ====
=== Subset of ===
[[Undirected graph]]