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Theorems · Theorem · number theory

NumberField.InfinitePlace.LiesOver.isReal_of_isReal_over

∀ {K : Type u_4} {L : Type u_5} [inst : Field K] [inst_1 : Field L] [inst_2 : Algebra K L]
  (w : NumberField.InfinitePlace L) {v : NumberField.InfinitePlace K} [w.LiesOver v], w.IsReal → v.IsReal

If w : InfinitePlace L lies above v : InfinitePlace K and w is real, then so is v.

Defined in
Mathlib.NumberTheory.NumberField.InfinitePlace.Ramification
Cited by
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Foundations
Depth 172 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
FieldFieldAlgebraNumberField.InfinitePlace.LiesOver

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