As opposed to axiomatic set theory, a treatment of set theory described in natural language such as the early work of Cantor, Frege, and Russell. However, such treatment leads to paradoxes such as Russell’s paradox.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。