Lemma
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Live class · by Ada

Olympiad Proof Techniques — 6-week intensive

★ 5.0 (2)·10 of 12 seats left
$149 · per student

A small-group class on the core proof techniques for competition math: induction, invariants, extremal arguments, and the pigeonhole principle. Weekly problem sets with AI-graded feedback and a live session.

Secure checkout by Stripe. Lemma keeps a 15% commission; the rest goes to your teacher.

What students say
★★★★★Leo

Loved that a different valid approach still got credit.

★★★★★Maya

The AI feedback on my proofs was better than I expected — caught a gap my teacher missed.