Some logicians, such as Paul Grice, have used conversational implicature to argue that, despite apparent difficulties, the material conditional is just fine as a translation for the natural language 'if...then...'.
有人比如 Paul Grice，使用会话蕴涵来做争辩说，尽管看起来困难，实质蕴涵正好适合用做自然语言的 '如果...则...' 的翻译。