What is Good Law?
A decision or statute that is still valid: not overturned, reversed or repealed. Lawyers confirm it with a citator before relying on a source, since an AI tool may cite one that no longer stands.

vol. 3 still good law · vol. 5 overturned
A case is good law when it…
Write it in your own words in the app.
In real work
The case Luis found with the assistant was real, but the citator showed it was no longer good law after a higher court reversed it.
In the illustration
The carriage scans the later volumes for anything that overturns the two cited ones. A tab on volume 8 overturns volume 5, whose signal arm drops; nothing touches volume 3, and its arm stays up.
Using your legal AI tool, list every case cited in this practice memo and what I must check to confirm each is still good law: later appeals, reversals and repeals. Do not call a case valid without a source I can open.
Try it now
The fastest way to learn a word is to use it. Open this line in the agent you already work in and watch what it does. Change the tool to the one you use.
Go further
01Practice
Make it stick
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02Verify
Prove you know it
Pass the quiz and keep it in a Skills Wallet you can share with anyone who needs proof.
03Career
Find the work that uses it
See which roles lean on this vocabulary, and what they pay in year one.





