`BookProof.LorentzOrthochronous.product_time_component` (a b : Matrix (Fin 4) (Fin 4) ℝ) : (a * b) 0 0 = a 0 0 * b 0 0 + a 0 1 * b 1 0 + a 0 2 * b 2 0 + a 0 3 * b 3 0

Initializing...

`BookProof.LorentzOrthochronous.product_time_component` (a b : Matrix (Fin 4) (Fin 4) ℝ) : (a * b) 0 0 = a 0 0 * b 0 0 + a 0 1 * b 1 0 + a 0 2 * b 2 0 + a 0 3 * b 3 0 · Prove2Me