Kateřina Trlifajová: Sizes of countable sets

Round-10 hunt: picked; channel-level screens (sellers/exam/re-upload/devotional/vendor/events) and provenance check passed; strict per-title check + final strict pass; oEmbed verified.

A 50-minute video from G2OAT: “Kateřina Trlifajová: Sizes of countable sets”.

Video by G2OAT, played through YouTube's embedded player.