pith. machine review for the scientific record. sign in
lemma proved term proof

spatialRadius_coordRay_temporal

show as:
view Lean formalization →

No prose has been written for this declaration yet. The Lean source and graph data below render without it.

generate prose now

formal statement (Lean)

 182lemma spatialRadius_coordRay_temporal (x : Fin 4 → ℝ) (s : ℝ) :
 183    spatialRadius (coordRay x 0 s) = spatialRadius x := by

proof body

Term-mode proof.

 184  unfold spatialRadius
 185  rw [spatialNormSq_coordRay_temporal]
 186
 187/-- For any spatial index `i ∈ {1,2,3}`, `x_i² ≤ spatialNormSq x`. -/

used by (5)

From the project-wide theorem graph. These declarations reference this one in their body.

depends on (4)

Lean names referenced from this declaration's body.