Twelve bridges
The twelve recognized doctrinal mechanisms by which a legal conclusion may be derived from precedent, grouped as authority-based, reasoning-based, evolution-based and policy-based; a synthesis that crosses none of them is argument rather than established law.
First used in The Twelve Bridges
The bridges are Direct Holding Application, Established Multi-Case Doctrine, Recognized Analogical Extension, Intra-Doctrinal Evolution, Controlling Superior Court Adoption, Statutory Codification, A Fortiori Reasoning, Negative Inference (Expressio Unius), Structural Constitutional Inference, Overruling Chain Completion, Identified Policy Rationale Extension, and Stare Decisis Weight Factors.
Each bridge carries conditions that can be checked, which makes the list usable as a whitelist. Eight fault patterns, such as thematic clustering without doctrinal warrant and dissent elevation, form the matching blacklist, and a validator runs both in parallel.
The practical discipline is one question, asked whenever a draft says "therefore": which bridge am I crossing, and does the case law truly support it? If none, the passage belongs in the argument section, labeled as argument.
Related terms
Related frameworks
The Twelve Bridges
A legal 'therefore' is established law only when it crosses one of twelve recognized doctrinal bridges from precedent to conclusion; a synthesis that crosses none is argument, and must be presented as argument.
Counter-Model Builder
An opposition system succeeds when it hands the court a complete, record-grounded replacement for the movant's proposed order, not a list of objections filed under the movant's headings.