logic symbol的用法和样例：
例句
- George Boole was an English mathematician who helped establish the field of mathematics called symbolic logic.
乔治布尔是一名曾帮助建立数学邻域中逻辑符号的英国数学家。 - Besides the linear notations for logic, reaschers in artificial intelligence have developed graphic notations called semantic networks.
除了线性逻辑符号，人工智能研究者还为逻辑开发了图形符号，叫做语义网络。
