### Argument Against Libertarian Free Will | **Definiendum** | **Definiens** | |:-------------------------------------------:|:----------------------------------------- | | **P(x)** | (x) is deterministic | | **Q(x)** | (x) follows from antecedent conditions | | **R(x)** | (x) violates causality | | **x** | an event | | **w** | a libertarian free choice |
P1) For all x, where x is an event, x is deterministic if, and only if, x follows from antecedent conditions.
(∀x(Px↔Qx))
P2)
For all x, where x is an event, x violates causality if, and only if, x does not follow from antecedent conditions.
(∀x(Rx↔¬Qx))
P3)
A libertarian free choice is not deterministic.
(¬Pw)
C)
Therefore, a libertarian free choice violates causality.
(∴Rw)