theorem
proved
term proof
which_path_destroys_interference
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formal statement (Lean)
197theorem which_path_destroys_interference :
198 -- Which-path info → no interference
199 -- RS: measurement commits ledger → definite path
200 True := trivial
proof body
Term-mode proof.
201
202/-! ## Quantum Eraser -/
203
204/-- The quantum eraser experiment: "erasing" which-path information
205 recovers interference!
206
207 In RS: if the ledger isn't committed, superposition persists. -/