Final answer:
Libertarian free will means that an act is free if and only if the actor could have done otherwise. It refers to the idea that our actions are not determined by external forces, but rather the product of our choices.
Step-by-step explanation:
Libertarian free will means that an act x is free if and only if the actor of x could have done otherwise. This definition implies that in order for an action to be considered free, the person performing the action must have had alternative options available to them and could have chosen differently. For example, if a person decides to go for a walk, it means they had the freedom to choose to go for a walk or do something else instead.
However, it is important to note that while this definition is often associated with freedom in the metaphysical sense, it is distinct from political freedom. In the context of free will, it refers to the idea that our actions are not determined by external forces, but rather the product of our choices.
Overall, the statement is true. Libertarian free will is based on the principle that an action is considered free if the person performing the action had the ability to choose otherwise.