{"id":"mixin-class-optional-functionality-via-mi","text":"A mixin class provides optional functionality (e.g., serialization, observable behavior) to be combined with other classes via multiple inheritance.","truth_value":"IN","source":"entries/2026/06/17/gof-oo-chunk-24.md","source_url":"","source_hash":"","justifications":[],"dependents":["mixin-defines-narrow-multiple-inheritance-niche"],"metadata":{"last_premise_reviewed":"2026-06-17T18:19:22","premise_review_result":"misread_source","repair_action":"rewritten"},"created_at":"2026-06-17T21:30:28+00:00","updated_at":"2026-06-17T22:52:59+00:00","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"mixin-class-optional-functionality-via-mi","truth_value":"IN","reason":"premise"}]}}