{"id":"find-difference-reduce-no-initial-value","text":"`findTheDifference` calls `reduce` without an initial value, so it raises `TypeError` if both `s` and `t` are empty (empty sequence with no initial value).","truth_value":"OUT","source":"entries/2026/06/06/find-the-difference-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":["construction-correctness-universal-for-valid-inputs","stdlib-delegation-safe-under-input-contracts","within-domain-correctness-comprehensive"],"metadata":{"_retracted":true},"created_at":"","updated_at":"2026-06-17T15:27:14+00:00","reviewed_at":"","verified_at":"","retracted_at":"2026-06-17T15:27:14+00:00","explanation":{"steps":[{"node":"find-difference-reduce-no-initial-value","truth_value":"OUT","reason":"retracted premise"}]}}