ABSTRACT
HAVING gone thorough what I had to say concerning the Object and Division of the Mathematics, I began in my last Lecture to speak of the Mode or Manner whereby they are conversant about their Object. To illustrate which in some measure I thought it would not be amiss to undertake a Companion of these with other Disciplines. And hence I have not obscurely insinuated from what Fountains the Efficacy of a Mathematical Discursus flows, asserting its Validity by way of Confirmation. It now remains on the other Hand to treat by way of Confutation, i. e. to bear against the Assaults, oppose the Cavils, and remove the Trifles of such as impugn the Certitude and Excellence of the Mathematical Way of Reasoning.
