Since it is clear what is meant by postulating the point at issue, and people think that they must at all costs overthrow the premisses that lie near the conclusion, and that some must not be conceded because he is postulating the point at issue, so whenever any one claims from us a point such as is bound to follow as a consequence from our thesis, but is false or paradoxical, we must plead the same; for the necessary consequences are generally held to be a part of the thesis itself.