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Theorems · Definition · commutative algebra

Algebra.TensorProduct.rightAlgebra

{R : Type uR} →
  {A : Type uA} →
    {B : Type uB} →
      [inst : CommSemiring R] →
        [inst_1 : Semiring A] →
          [inst_2 : Algebra R A] → [inst_3 : CommSemiring B] → [inst_4 : Algebra R B] → Algebra B (TensorProduct R A B)

S ⊗[R] T has a T-algebra structure. This is not a global instance or else the action of S on S ⊗[R] S would be ambiguous.

Defined in
Mathlib.RingTheory.TensorProduct.Basic
Cited by
27 results in Mathlib
Foundations
Depth 80 from the axioms · uses propext, Quot.sound
Assumes
CommSemiringSemiringAlgebraCommSemiringAlgebra

Around this declaration

Dashed lines are statement dependencies; solid lines are citations in proofs.

Algebra.Extension.toBaseChange · cited by 7Extension.toBaseChangeAlgebra.TensorProduct.commRight · cited by 4TensorProduct.commRightAlgebra.FormallyUnramified.of_formallyUnramified_tensorProduct_of_faithfullyFlat · cited by 3FormallyUnramified.of_for…IsBaseChange.lift_rank_eq · cited by 3IsBaseChange.lift_rank_eqIsBaseChange.lift_rank_eq_of_le_nonZeroDivisors · cited by 3IsBaseChange.lift_rank_eq…Algebra.Smooth.of_smooth_tensorProduct_of_faithfullyFlat · cited by 2Smooth.of_smooth_tensorPr…Algebra.TensorProduct.right_algebraMap_apply · cited by 2TensorProduct.right_algeb…IsLocalization.Away.tensorRightEquiv · cited by 2Away.tensorRightEquivAlgebra.kerTensorProductMapIdToAlgHomEquiv · cited by 1Algebra.kerTensorProductM…RingHom.IsStableUnderBaseChange.pushout_inl · cited by 1IsStableUnderBaseChange.p…RingHom.IsStableUnderBaseChange.tensorProduct · cited by 1IsStableUnderBaseChange.t…Algebra.Extension.tensorCotangentOfFlat_tmul · cited by 1Extension.tensorCotangent…Algebra.Extension.tensorCotangentSpace_tmul · cited by 1Extension.tensorCotangent…Algebra.IsSmoothAt.of_formallySmooth_fiber · cited by 1IsSmoothAt.of_formallySmo…Algebra.IsPushout.cancelBaseChange_symm_comp_lTensor · cited by 1IsPushout.cancelBaseChang…Semiring · cited by 13802SemiringAlgebra · cited by 11388AlgebraCommSemiring · cited by 10911CommSemiringTensorProduct · cited by 2545TensorProductAlgHom.toRingHom · cited by 490AlgHom.toRingHomAlgebra.TensorProduct.includeRight · cited by 165TensorProduct.includeRightRingHom.toAlgebra' · cited by 3RingHom.toAlgebra'TensorProduct.rightAlgebraCITED BYCITES

Cites7

Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.

Cited by34

Results whose statement or proof uses this declaration.