Also known as the Hauptsatz. A theorem stating that a certain type of inference rule is not needed. The idea was anticipated by J. Herbrand and the theorem was proved for classical logic by G. Gentzen.
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。