İki nesne arasındaki çekim kuvveti iki kütlenin ürünü ile orantılıdır ve onların kütle merkezleri arasındaki mesafeyle ters orantılıdır.
- The force of gravity between two objects is proportional to the product of the two masses, and inversely proportional to the square of the distance between their centers of mass.
Deposing is the opposite of installing, and vice versa.
Removing one's shoes is the inverse of putting one's shoes on.
The compositional inverse of a function f is f–1 as, f f–1 is the identity function (ie f–1(f(a)) = a for all a).