<p>The three principles were proved by the several kinds of inference with certainty. The inductive proof attained certainty by considering all the instances that could be taken. And the hypothetic inference attained certainty by having only a subjective character.</p> | <p>The three principles were proved by the several kinds of inference with certainty. The inductive proof attained certainty by considering all the instances that could be taken. And the hypothetic inference attained certainty by having only a subjective character.</p> |