{"id":"gof-authors-gamma-helm-johnson-vlissides","text":"The Gang of Four authors are Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides.","truth_value":"IN","source":"entries/2026/06/17/gof-oo.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{"last_premise_reviewed":"2026-06-17T18:19:22","premise_review_result":"pass"},"created_at":"2026-06-17T17:04:08+00:00","updated_at":"2026-06-17T17:04:08+00:00","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"gof-authors-gamma-helm-johnson-vlissides","truth_value":"IN","reason":"premise"}]}}