Abstract
Semi-compatibilists intend to reconcile moral responsibility with causal determinism, even if determinism is incompatible with freedom to do otherwise. For them, moral responsibility does not require free will, which is not a necessary condition for moral responsibility. They agree with the view that causal determinism is incompatible with free will. Free will is incompatible with determinism as well as moral responsibility. Both compatibilists and semi-compatibilists argue for the compatibility between determinism and moral responsibility. However, the latter fails to prove sufficiently the reason why determinism is compatible with moral responsibility.