He also justified induction by means of his logic thoughts, and constructed his justification of induction on the basis of his probabilitylogic theory.
他还将概率逻辑思想应用于归纳推理合理性的辩护之中，在概率逻辑的基础之上建立了他的辩护理论。
2
The fundamental tools of A.I. shifted from Logic to Probability in the late 1980s, and fundamental progress in the theory of uncertain reasoning underlies many of the recent practical advances.
The fundamental tools of A. I. shifted from Logic to Probability in the late 1980s, and fundamental progress in the theory of uncertain reasoning underlies many of the recent practical advances.