1·As the founder of pragmatism, firstly and mostly Peirce was a logician.
作为实用主义的鼻祖，皮尔士首先和主要是一位逻辑学家。
2·First and foremost he is a logician.
他首先是一个逻辑学家。
3·Finn logician Von Wright published the classical essay Deontic Logic in 1951, which marked that modern deontic logic came into being.
1951年芬兰逻辑学家冯·赖特发表了经典性论文《道义逻辑》，标志着现代道义逻辑的诞生。
4·British mathematician, logician, philosopher, founder of process philosophy.
英国数学家、逻辑学家、哲学家，过程哲学的创始人。
5·Mister Wu Feibai is a famous Mohist and logician in Chinese modern and contemporary history.
伍非百先生是中国近、现代著名的墨学家和逻辑学家。