Book, Paragraph

1  IV, 6  |         of air that needs to be proved, but the non-existence of
2   V, 1  |      contradictories, as may be proved by induction. An intermediate
3  VI, 6  |      And now that this has been proved, it is evident that everything
4  VI, 7  |     hold good.~This having been proved, it is evident that neither
5 VII, 2  |         alteration: this can be proved by induction: for in every
6 VIII, 7 |       is possible (this will be proved later: for the present let
7 VIII, 10|          This point may also be proved in another way-by taking
8 VIII, 10| magnitude. Now we have already’ proved in our course on Physics
9 VIII, 10|      magnitude: and we have now proved that it is impossible for