Theorems · Theorem · ring theory
StarAlgHom.subtype_comp_codRestrict
∀ {R : Type u_2} {A : Type u_3} {B : Type u_4} [inst : CommSemiring R] [inst_1 : StarRing R] [inst_2 : Semiring A]
[inst_3 : Algebra R A] [inst_4 : StarRing A] [inst_5 : Semiring B] [inst_6 : Algebra R B] [inst_7 : StarRing B]
[inst_8 : StarModule R B] (f : A →⋆ₐ[R] B) (S : StarSubalgebra R B) (hf : ∀ (x : A), f x ∈ S),
S.subtype.comp (f.codRestrict S hf) = f- Defined in
- Mathlib.Algebra.Star.Subalgebra
- Cited by
- 0 results in Mathlib
- Foundations
- Depth 35 from the axioms · uses propext, Quot.sound
Around this declaration
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Cites13
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- DFunLike.coestatement and proof · cited by 62,936
- Semiringstatement and proof · cited by 13,802
- Algebrastatement and proof · cited by 11,388
- CommSemiringstatement and proof · cited by 10,911
- StarRingstatement and proof · cited by 1,686
- StarModulestatement and proof · cited by 570
- StarAlgHomstatement and proof · cited by 215
- StarSubalgebrastatement and proof · cited by 194
- StarAlgHom.compstatement · cited by 30
- StarAlgHom.extproof · cited by 14
- StarSubalgebra.subtypestatement · cited by 7
- StarAlgHom.codRestrictstatement · cited by 4
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