a posteriori
/ˌeɪ ˌpɔsterɪˈɔ:raɪ; `epɑsˌtɛrɪ`ɔraɪ/ (using reasoning that proceeds) from known facts to probable causes, eg saying `The boys are very tired so they must have walked a long way.' （用推理方法）由已知事实推测出原因（如说‘孩子们很疲倦, 那么他们一定走了很长的路.’） Cf 参看 a priori.