Marginalia — EnglishMathematics exercise solutions and study noteshttps://marginmath.cc/enExercise 1 — Russell's Paradoxhttps://marginmath.cc/math/zorich-analysis/ch01-general-concepts/ex-1/https://marginmath.cc/math/zorich-analysis/ch01-general-concepts/ex-1/Prove that the set of all sets leads to a contradiction.Mon, 03 Aug 2026 09:30:45 GMTset theoryRussell's paradoxExercise 2 — Cartesian Productshttps://marginmath.cc/math/zorich-analysis/ch01-general-concepts/ex-2/https://marginmath.cc/math/zorich-analysis/ch01-general-concepts/ex-2/Geometric interpretation of Cartesian products of line segments, lines, circles, and disks.Mon, 03 Aug 2026 09:30:45 GMTcartesian productgeometrysets