179 "i² = -1 from 4 ticks = π rotation", 180 "Waves from continuous phase accumulation", 181 "Unitarity from phase conservation", 182 "Fermion sign from 2π rotation = 8 ticks = 1" 183] 184 185/-! ## The 8th Roots of Unity -/ 186 187/-- The 8th roots of unity ζ_k = e^{2πik/8} for k = 0,...,7. 188 189 These are exactly the 8-tick phases! 190 They form a group under multiplication (cyclic group Z₈). -/
depends on (14)
Lean names referenced from this declaration's body.