L4 Tutorials

Task-oriented guides to help you accomplish specific goals with L4. Each tutorial is self-contained and focused on a particular use case or audience.

Getting Started

New to L4? Start here:

• Your First L4 File - Create and run a simple L4 program
• Encoding Legislation - Turn legal text into L4
• Wedding Vows - Fun intro to regulative rules
• Common Patterns - Quick reference patterns

Natural Language Functions

Write functions that read like legal prose:

• Infix, Postfix, and Mixfix Functions

Audience: All L4 users
Prerequisites: Basic function syntax

Deployment and Legalese Cloud

Export your L4 functions as live REST API endpoints:

• Exporting Functions for Deployment - Mark functions with @export, deploy from VS Code, and call them via REST or WebMCP

Audience: L4 authors ready to share their rules Prerequisites: Basic L4 knowledge

LLM Integration

Working with AI and language models in L4:

• LLM Getting Started - Basics of LLM integration
• Legislative Ingestion - LLM-assisted encoding

Audience: Developers, AI/ML practitioners
Prerequisites: Basic L4 knowledge

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Tutorial Ideas

See Tutorial Suggestions for a list of planned tutorials and ideas for new content. Contributions welcome!