The dialecticians were an offshoot of the Megarian school. Philo studied under Diodorus Cronus, and was an early defender of a truth-functional account of the conditional.
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。