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• 1995 IMO Problems/Problem 1
  ''Lemma:'' The radical axis of two pairs of circles <math>O_1</math>, <math>O_2</ma The proof of this lemma is trivial using the argument in Solution 3 and applying the converse of Po
  5 KB (854 words) - 21:22, 4 July 2024
• User:Vqbc/Testing2
  Algebra is cool. I'm pretty good at it (by my standards shup smh). Titu's lemma follows directly from Cauchy, it says for the same variables, <cmath>\frac{
  80 KB (13,867 words) - 23:17, 22 December 2020
• 2024 USAJMO Problems/Problem 3
  Lemma <math>1</math>: Proof of Lemma <math>1</math>:
  2 KB (469 words) - 21:42, 19 July 2024