The omnipotence paradox is a family of semantic paradoxes that explores what is meant by 'omnipotence'. If an omnipotent being is able to perform any action, then it should be able to create a task that it is unable to perform. Hence, this being cannot perform all actions (i.e. it is not omnipotent), a logical contradiction. The most well-known version of the omnipotence paradox is the so-called paradox of the stone: "Could an omnipotent being create a stone so heavy that even they could not lift it?" This phrasing of the omnipotence paradox is vulnerable to objections based on the physical nature of gravity, such as how the weight of an object depends on what the local gravitational field is. Alternative statements of the paradox that do not involve such difficulties include "If given the axioms of Riemannian geometry, can an omnipotent being create a triangle whose angles do not add up to 180 degrees?" and "Can God create a prison so secure that he cannot escape from it?"