{"id":"product-init-one-not-zero","text":"The product accumulator in `subtract_product_and_sum` starts at 1 (multiplicative identity); starting at 0 would make the product always 0 regardless of input","truth_value":"IN","source":"entries/2026/06/06/subtract-the-product-and-sum-of-digits-of-an-integer-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"product-init-one-not-zero","truth_value":"IN","reason":"premise"}]}}