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Theorems · Theorem · commutative algebra

smul_left_injective

∀ (R : Type u_1) {M : Type u_3} [inst : Ring R] [inst_1 : AddCommGroup M] [inst_2 : Module R M] {m : M}
  [IsCancelMulZero R] [Module.IsTorsionFree R M], m ≠ 0 → Function.Injective fun x => x • m
Defined in
Mathlib.Algebra.Module.Torsion.Free
Cited by
25 results in Mathlib
Foundations
Depth 22 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
RingAddCommGroupModuleIsCancelMulZeroModule.IsTorsionFree

Around this declaration

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

RootPairing.setOfPred_root_add_zsmul_eq_Icc_of_linearIndependent · cited by 5RootPairing.setOfPred_roo…Submodule.span_singleton_eq_span_singleton · cited by 5Submodule.span_singleton_…IsSl2Triple.h_eq_coroot · cited by 4IsSl2Triple.h_eq_corootiSupIndep.linearIndependent · cited by 4iSupIndep.linearIndepende…RootPairing.nsmul_notMem_range_root · cited by 4RootPairing.nsmul_notMem_…LieModule.eventually_genWeightSpace_smul_add_eq_bot · cited by 4LieModule.eventually_genW…Ideal.iInf_pow_smul_eq_bot_of_isTorsionFree · cited by 3Ideal.iInf_pow_smul_eq_bo…Module.Finite.left · cited by 2Finite.leftRootPairing.linearIndependent_iff_coxeterWeight_ne_four · cited by 2RootPairing.linearIndepen…CharZero.of_isAddTorsionFree · cited by 2CharZero.of_isAddTorsionF…EuclideanGeometry.Sphere.inter_orthRadius_eq_of_dist_le_radius_of_norm_eq_one · cited by 1Sphere.inter_orthRadius_e…niven_angle_div_pi_eq · cited by 1niven_angle_div_pi_eqSMulPosReflectLT.toSMulPosReflectLE · cited by 1SMulPosReflectLT.toSMulPo…LieModule.exists_forall_mem_corootSpace_smul_add_eq_zero · cited by 1LieModule.exists_forall_m…exists_root_adjoin_eq_top_of_isCyclic · cited by 1exists_root_adjoin_eq_top…Module · cited by 20661ModuleAddCommGroup · cited by 12871AddCommGroupRing · cited by 7463RingModule.IsTorsionFree · cited by 600Module.IsTorsionFreesub_eq_zero · cited by 407sub_eq_zeroIsCancelMulZero · cited by 177IsCancelMulZerosub_smul · cited by 97sub_smulsmul_eq_zero_iff_left · cited by 10smul_eq_zero_iff_leftsmul_left_injectiveCITED BYCITES

Cites8

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

Cited by25

Results whose statement or proof uses this declaration.