斩钉截铁 | zhǎn dīng jié tiě | lit. to chop the nail and slice the iron (idiom) / fig. resolute and decisive / unhesitating / categorical | |
性质命题 | xìng zhì mìng tí | categorical proposition (logic) | |
直言命题 | zhí yán mìng tí | categorical proposition (logic) | |
词项逻辑 | cí xiàng luó ji | categorical logic |