lemma
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other
coordRay_apply
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formal statement (Lean)
23@[simp] lemma coordRay_apply (x : Fin 4 → ℝ) (μ : Fin 4) (t : ℝ) (ν : Fin 4) :
24 coordRay x μ t ν = x ν + t * basisVec μ ν := rfl
used by (7)
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depends on (2)
Lean names referenced from this declaration's body.
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basisVec
in IndisputableMonolith.Relativity.Calculus.Derivatives
decl_use
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coordRay
in IndisputableMonolith.Relativity.Calculus.Derivatives
decl_use