Theorems · Theorem · nonassociative algebras

RootPairing.chainCoeff_chainTopIdx_aux

∀ {ι : Type u_1} {R : Type u_2} {M : Type u_3} {N : Type u_4} [inst : Finite ι] [inst_1 : CommRing R]
  [inst_2 : CharZero R] [inst_3 : IsDomain R] [inst_4 : AddCommGroup M] [inst_5 : Module R M] [inst_6 : AddCommGroup N]
  [inst_7 : Module R N] {P : RootPairing ι R M N} [inst_8 : P.IsCrystallographic] {i j : ι},
  RootPairing.chainBotCoeff i (RootPairing.chainTopIdx i j) =
      RootPairing.chainBotCoeff i j + RootPairing.chainTopCoeff i j ∧
    RootPairing.chainTopCoeff i (RootPairing.chainTopIdx i j) = 0

Defined in

Mathlib.LinearAlgebra.RootSystem.Chain

Cited by

2 results in Mathlib

Foundations

Depth 104 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

FiniteCommRingCharZeroIsDomainAddCommGroupModuleAddCommGroupModuleRootPairing.IsCrystallographic