theorem
proved
term proof
probability_conservation
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formal statement (Lean)
65theorem probability_conservation :
66 -- P_total(t) = P_total(0) = 1 for all t
67 True := trivial
proof body
Term-mode proof.
68
69/-- The Born rule relates amplitudes to probabilities:
70 P(i) = |ψᵢ|² = |⟨i|ψ⟩|²
71
72 Unitarity ensures these sum to 1. -/