{"id":"find-difference-set-minus-idiom","text":"`findDifference` uses Python's set `-` operator for symmetric difference — converts both inputs to sets, then computes `set1 - set2` and `set2 - set1`.","truth_value":"IN","source":"entries/2026/06/06/find-the-difference-of-two-arrays-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":["set-for-o1-membership-universal"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"find-difference-set-minus-idiom","truth_value":"IN","reason":"premise"}]}}