Theorems · Inductive type · field theory
IsPurelyInseparable
(F : Type u_1) → (E : Type u_2) → [inst : CommRing F] → [inst_1 : Ring E] → [Algebra F E] → Prop
Typeclass for purely inseparable field extensions: an algebraic extension E / F is purely
inseparable if and only if the minimal polynomial of every element of E ∖ F is not separable.
We define this for general (commutative) rings and only assume F and E are fields
if this is needed for a proof.
- Cited by
- 84 results in Mathlib
- Foundations
- Depth 6 from the axioms · uses no axioms
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites3
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
Cited by89
Results whose statement or proof uses this declaration.
- IsPurelyInseparable.elemExponentstatement and proof · cited by 15
- isPurelyInseparable_iff_pow_memstatement · cited by 10
- IsPurelyInseparable.surjective_algebraMap_of_isSeparablestatement and proof · cited by 6
- RingHom.IsPurelyInseparableproof · cited by 5
- IsPurelyInseparable.elemReductstatement and proof · cited by 5
- IntermediateField.adjoin_eq_adjoin_pow_expChar_pow_of_isSeparableproof · cited by 4
- IsPurelyInseparable.inseparablestatement and proof · cited by 4
- IsPurelyInseparable.inseparable'statement and proof · cited by 4
- IsPurelyInseparable.pow_memstatement and proof · cited by 4
- isPurelyInseparable_iffstatement and proof · cited by 4
- IsPurelyInseparable.elemExponent_le_of_pow_memstatement and proof · cited by 3
- IsPurelyInseparable.injective_comp_algebraMapstatement and proof · cited by 3