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Theorems · Theorem · field theory

IntermediateField.adjoin_simple_eq_adjoin_pow_expChar_pow_of_isSeparable

∀ (F : Type u) (E : Type v) [inst : Field F] [inst_1 : Field E] [inst_2 : Algebra F E] {a : E},
  IsSeparable F a → ∀ (q : ℕ) [ExpChar F q] (n : ℕ), F⟮a⟯ = F⟮a ^ q ^ n⟯

If F is a field of exponential characteristic q, a : E is separable over F, then F⟮a⟯ = F⟮a ^ q ^ n⟯ for any natural number n.

Defined in
Mathlib.FieldTheory.PurelyInseparable.PerfectClosure
Cited by
2 results in Mathlib
Foundations
Depth 197 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
FieldFieldAlgebraExpChar

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