{"id":"ocp-bidirectional-grounded-in-solid","text":"OCP's bidirectional extensibility is fully grounded in SOLID's theoretical foundation: the standard direction (add new types via composition) is enabled by the LSP→DIP→OCP dependency chain that grounds the composition paradigm, while the inverted direction (Visitor adding new operations via double-dispatch) is validated by the same substitutability guarantees — demonstrating that SOLID grounds not only standard extension but also its systematic inversion through the Visitor pattern.","truth_value":"OUT","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["ocp-bidirectional-extensibility","solid-grounds-composition-paradigm"],"outlist":[],"label":"depth-5 insight that SOLID's grounding extends to both standard and inverted OCP extension directions"}],"dependents":["ocp-central-axis-of-variation-management"],"metadata":{"source_type":"derived","review_result":"invalid"},"created_at":"2026-06-17T18:56:36+00:00","updated_at":"2026-06-17T20:39:50+00:00","reviewed_at":"2026-06-17T20:39:50+00:00","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"ocp-bidirectional-grounded-in-solid","truth_value":"OUT","reason":"SL justification invalid","failed_antecedents":["solid-grounds-composition-paradigm"],"label":"depth-5 insight that SOLID's grounding extends to both standard and inverted OCP extension directions"}]}}