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Theorems · Theorem · order theory

hahnEmbedding_isOrderedAddMonoid

∀ (M : Type u_1) [inst : AddCommGroup M] [inst_1 : LinearOrder M] [inst_2 : IsOrderedAddMonoid M],
  ∃ f,
    Function.Injective ⇑f ∧
      ∀ (a : M), ArchimedeanClass.mk a = (FiniteArchimedeanClass.withTopOrderIso M) (ofLex (f a)).orderTop

Hahn embedding theorem For a linearly ordered additive group M, there exists an injective OrderAddMonoidHom from M to Lex ℝ⟦FiniteArchimedeanClass M⟧ that sends each a : M to an element of the a-Archimedean class of the Hahn series.

Defined in
Mathlib.RingTheory.HahnSeries.HahnEmbedding
Cited by
0 results in Mathlib
Foundations
Depth 164 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
AddCommGroupLinearOrderIsOrderedAddMonoid

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