{"id":"digit-sum-min-returns-binary","text":"`sum_of_digits` returns exactly 0 or 1 (even/odd parity of the minimum element's digit sum), never any other value.","truth_value":"IN","source":"entries/2026/06/06/sum-of-digits-in-the-minimum-number-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"digit-sum-min-returns-binary","truth_value":"IN","reason":"premise"}]}}