Theorems · Theorem · linear algebra
TensorProduct.map_ker
∀ {R : Type u_1} {M : Type u_2} {N : Type u_3} {P : Type u_4} [inst : CommRing R] [inst_1 : AddCommGroup M]
[inst_2 : AddCommGroup N] [inst_3 : AddCommGroup P] [inst_4 : Module R M] [inst_5 : Module R N] [inst_6 : Module R P]
{f : M →ₗ[R] N} {g : N →ₗ[R] P},
Function.Exact ⇑f ⇑g →
Function.Surjective ⇑g →
∀ {M' : Type u_6} {N' : Type u_7} {P' : Type u_8} [inst_7 : AddCommGroup M'] [inst_8 : AddCommGroup N']
[inst_9 : AddCommGroup P'] [inst_10 : Module R M'] [inst_11 : Module R N'] [inst_12 : Module R P']
{f' : M' →ₗ[R] N'} {g' : N' →ₗ[R] P'},
Function.Exact ⇑f' ⇑g' →
Function.Surjective ⇑g' →
(TensorProduct.map g g').ker = (LinearMap.lTensor N f').range ⊔ (LinearMap.rTensor N' f).rangeKernel of a product map (right-exactness of tensor product)
- Cited by
- 1 results in Mathlib
- Foundations
- Depth 93 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites30
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
- Modulestatement and proof · cited by 20,661
- RingHom.idstatement and proof · cited by 18,349
- CommRingstatement and proof · cited by 17,173
- AddCommGroupstatement and proof · cited by 12,871
- LinearMapstatement and proof · cited by 10,215
- Top.topproof · cited by 9,680
- Submodulestatement and proof · cited by 7,192
- TensorProductstatement and proof · cited by 2,545
- LinearMap.compproof · cited by 1,642
- LinearMap.rangestatement and proof · cited by 893
- LinearMap.kerstatement and proof · cited by 848
Cited by1
Results whose statement or proof uses this declaration.
- Submodule.isCoideal_iff_comul_memproof · cited by 0