1987 IMO Problems/Problem 4
Problem
Prove that there is no function 
from the set of non-negative integers into itself such that 
for every 
.
Solution
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| 1987 IMO (Problems) • Resources | ||
| Preceded by Problem 3 |
1 • 2 • 3 • 4 • 5 • 6 | Followed by Problem 5 |
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