What is the highest provincial court? define precedent and explain its role in the Canadian legal system 3. what is the civil law system? 1. distinguish arbitration and mediation 5. distinguish an offer and an invitation to treat 5. why does it matter where a contract is made? Where is a contract made when the parties are not doing business face-to 3. what is the post box rule? 9. when is a letter of revocation effective? 10. define consideration