===== Total relation =====
==== Set ====
| @#55CCEE: context     | @#55CCEE: $X$ |

| @#FFBB00: definiendum | @#FFBB00: $ R\in\mathrm{TotalRel}(X) $ |

| @#55CCEE: context     | @#55CCEE: $ R\ \in\ \mathrm{Rel}(X) $ |
| $x,y\in X$ |

| @#55EE55: postulate   | @#55EE55: $ xRy\ \lor\ yRx $ |

==== Discussion ====
Wikipedia: [[http://en.wikipedia.org/wiki/Total_relation|Total relation]]
==== Parents ====
=== Subset of ===
[[Binary relation on a set]]