Forjustastheuniversalpropositionsofmathematicsdealnot
withobjectswhichexistseparately，apartfromextendedmagnitudes
andfromnumbers，butwithmagnitudesandnumbers，nothoweverqua
suchastohavemagnitudeortobedivisible，clearlyitispossible
thatthereshouldalsobebothpropositionsanddemonstrationsabout