Discrete Math

A collection of 1 post

[DM] De Morgan's Law 迪摩根定理

基本$$ \neg ( P \lor Q ) \equiv ( \neg P ) \land ( \neg Q ) $$$$ \neg ( P \land Q ) \equiv ( \neg P ) \lor ( \neg Q ) $$$$ ( P \lor Q ) \equiv \neg ( \neg P \land \neg Q ) $$$$ ( P \land