Every part of mixed mathematics proceeds upon the supposition that certain laws are established by nature in her operations; and abstract reasonings are employed, either to assist experience in the discovery of these laws, or to determine their influence in particular instances, where it depends upon any precise degree of distance and quantity.
Matematika aplikatuaren adar guztiek suposizio honekin jokatzen dute, hots, halako lege batzuk naturak bere eragiketetan ezarriak direla, eta arrazoiketa abstraktuak erabiltzen dira, bai lege hauen aurkikuntzan esperientziara jotzeko, bai hauen eragina erabakitzeko distantzi eta kantitate maila jakin baten mende dauden kasu partikularretan.