refactor: Lint
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@ -11,24 +11,16 @@ We define the standard basis of the Lorentz group.
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-/
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namespace spaceTime
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namespace lorentzAlgebra
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open Matrix
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/-- The matrices which form the basis of the Lorentz algebra. -/
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@[simp]
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def σMat (μ ν : Fin 4) : Matrix (Fin 4) (Fin 4) ℝ := fun ρ δ ↦
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η^[ρ]_[μ] * η_[ν]_[δ] - η_[μ]_[δ] * η^[ρ]_[ν]
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end lorentzAlgebra
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end spaceTime
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