Tutorials
Learn to write executable rules, one package and one checked answer at a time.
First package: from rule to answer
Begin with a rule, provide facts, ask a question, and check the answer. Then build on the same foundations.
Start hereNorthbridge course
Follow one fictional municipality from a first permit to evidence, appeals, and a complete case. Twenty-five chapters, with exercises and worked solutions.
Build the foundations
Objects, facts, support, exceptions, and tests.
Model a real source
Quantities, source anchors, definitions, and a pinned edition.
Express legal effects
Time, duties, competing readings, evidence, and procedure.
Compose and explain
Dependencies, parameters, explanations, and a package ready for review.
Practice what you learned
Exercises to try after the corresponding lessons.
- Exercise 1. A second article of the rules
- Exercise 2. Four cases for one question
- Exercise 3. Two ways to say "not accredited"
- Exercise 4. Suspension also closes the general room
- Exercise 5. A guest pass for one missing from the registry
- Exercise 6. A test on silence and a test on dispute
- Exercise 7. A bulk-order discount
- Exercise 8. The largest of the unpaid
- Exercise 9. An anchor the compiler checks
- Exercise 10. The same date via two norms
- Exercise 11. A document counts as lost
- Exercise 12. A return counts as timely
- Exercise 13. A second article from the same bytes
- Exercise 14. A transition period with two bounds
- Exercise 15. A complaint term in business days
- Exercise 16. An extension moves the term, not cancels the duty
- Exercise 17. A power to extend a visit
- Exercise 18. A third reading: reciprocity
- Exercise 19. A digital receipt
- Exercise 20. Withdrawing an application
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