Theorems · Theorem · logic and foundations
ZFSet.IsOrdinal.mem_trichotomous
∀ {x y : ZFSet.{u}}, x.IsOrdinal → y.IsOrdinal → x ∈ y ∨ x = y ∨ y ∈ x- Defined in
- Mathlib.SetTheory.ZFC.Ordinal
- Cited by
- 1 results in Mathlib
- Foundations
- Depth 35 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites4
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- ZFSetstatement and proof · cited by 259
- ZFSet.IsOrdinalstatement and proof · cited by 34
- ZFSet.IsOrdinal.subset_iff_eq_or_memproof · cited by 2
- ZFSet.IsOrdinal.mem_or_subsetproof · cited by 2
Cited by1
Results whose statement or proof uses this declaration.
- ZFSet.IsOrdinal.trichotomousproof · cited by 2