Read Edit View history 集合论 jíhélùn set theory Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 集合论/集合論 · jíhélùn · set theory 2026/03/04 集合论 / 集合論 jíhélùn set theory the mathematical study of sets 集合论是现代数学的基础。 created sense Mar 4, 2026, 02:25 AM