Relativity, Physics, Math, Einstein, Spacetime.
𝑥 = 0, 𝑥′ = 0 and 𝑡′ = 0. By substituting these concurrent values, both sides of the equations become zero, quite in accordance with the assumptions. Secondly, Eq.(7) has been obtained after application of Δ operator on both sides of the above result i.e. 𝑥′ = 𝑎𝑥 and thereby substituting Δ𝑥 = 1.