To provide detailed information regarding the operation of the I.M.O., I give the complete set of instructions which were sent by Czechoslovakia to each of the invited countries. Except for dates, these instructions are essentially the same from year to year.

25th International Mathematical Olympiad Regulations

I. General Provisions

1. The 25th International Mathematical Olympiad (hereinafter I.M.O.) is an international contest for secondary school students in the solution of mathematical problems. It will consist of the contest proper and of related events concerning the problem of detecting and developing pupils with a gift for mathematics.

2. The 25th I.M.O. will be held in the Czechoslovak Socialist Republic from June 29 to July 10, 1984.

3. The related events will be prepared by the I.M.O. organizers. They will include a Symposium and an Exhibition related to the problem area of work with pupils with a talent for mathematics.

4. The contest consists of two papers which will be written in the morning of July 4 and of July 5, 1984. In each of these papers the participants solve three problems in 4–4½ hours of working time.

5. Each country which accepts the invitation to participate in the 25th I.M.O. may send a delegation consisting of the leader of the deIegation, his deputy and six contestants.