{"id":"diagonal-sum-overcounting-correction","text":"The center element is double-counted by the loop when n is odd, and the post-loop subtraction is the sole mechanism that corrects this.","truth_value":"IN","source":"entries/2026/06/06/matrix-diagonal-sum-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"diagonal-sum-overcounting-correction","truth_value":"IN","reason":"premise"}]}}