The cause of the goodman paradox is not only the indiscrimination of the law - like hypothesis and accidental hypothesis but also such a characterization : it is unnecessary but improbable that the conclusion is false while the premises are all true ( " inductive probability " ) 摘要之所以会产生古德曼悖论,不仅是因为类律假说和偶适假说的混同,而且也是因为对归纳的这样一个似是而非的刻画:假设归纳推理的前提都为真,则其结论不一定但很可能为真(即所谓的“归纳概然性特征” ) 。