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Theorems · Theorem · field theory

IntermediateField.LinearDisjoint.inf_eq_bot

∀ {F : Type u} {E : Type v} [inst : Field F] [inst_1 : Field E] [inst_2 : Algebra F E] {A B : IntermediateField F E},
  A.LinearDisjoint ↥B → A ⊓ B = ⊥

If A and B are linearly disjoint over F, then their intersection is equal to F. This is actually an equivalence if A/F and B/F are finite dimensional, and A/F is Galois, see IntermediateField.LinearDisjoint.iff_inf_eq_bot.

Defined in
Mathlib.FieldTheory.LinearDisjoint
Cited by
2 results in Mathlib
Foundations
Depth 122 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
FieldFieldAlgebra

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