User contributions
- 10:12, 15 May 2020 (diff | hist) . . (+31) . . m 1983 IMO Problems/Problem 5 (→Solution)
- 10:08, 15 May 2020 (diff | hist) . . (+1,241) . . 1983 IMO Problems/Problem 5 (→Solution)
- 12:25, 25 April 2020 (diff | hist) . . (+2,403) . . N 1977 IMO Problems/Problem 6 (Created page with "= Problem = Let <math>f(n)</math> be a function <math>f: \mathbb{N}^{+}\to\mathbb{N}^{+}</math>. Prove that if <cmath> f(n+1) > f(f(n)) </cmath> for each positive integer <mat...")