leanprover-community / mathlib

  • Home
  • Zulip archive
  • API documentation
  • Lean web editor
  • Links

Zulip Chat Archive

Stream: Is there code for X?

Topic: total_on


Yaël Dillies (Sep 11 2021 at 10:25):

Do we something akin to directed_on for total relations? I'm looking for the condition ∀ x y ∈ s, r x y ∨ r y x where s : set α and r : α → α → Prop

Kevin Buzzard (Sep 11 2021 at 10:48):

I think this is usually called a chain when the relation gives a poset

Yaël Dillies (Sep 11 2021 at 10:54):

Ah yes of course! Don't mind me :smile:


Last updated: May 02 2025 at 03:31 UTC

Theme Simple by wildflame © 2016 Powered by jekyll