In mathematics and physics, an inequality can be used to compare sizes. For example, if the speed $v$ of a car is at most 50 km/h this can be formulated as $v \leq 50\, \text{km/h}$ using an inequality. In physics, inequalities play a very important role, for example in the context of the [[Heisenberg uncertainty principle]] or in the [[Bell Inequality|Bell inequalities]] in [[quantum mechanics]]. >[!read]- Further Reading >[!ref]- References >