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Theorems · Theorem · order theory

LTSeries.exists_relSeries_covBy

∀ {α : Type u_3} [inst : PartialOrder α] [WellFoundedLT α] [WellFoundedGT α] (s : LTSeries α),
  ∃ t i, t.toFun ∘ ⇑i = s.toFun ∧ i 0 = 0 ∧ i (Fin.last s.length) = Fin.last t.length

Any LTSeries can be refined to a CovBy-RelSeries in a bidirectionally well-founded order.

Defined in
Mathlib.Order.RelSeries
Cited by
1 results in Mathlib
Foundations
Depth 53 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
PartialOrderWellFoundedLTWellFoundedGT

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