Since Davidson believes that mental events are causally efficacious (i.e. he rejects epiphenomenalism), then it must be a mental event as such (mental properties of mental events) which are the causally relevant properties. But if we accept the first two claims of the argument for AM, along with the idea of the causal efficacy of the mental, and the Principle of Causally-Relevant properties, then the result is a denial of anomalous monism because there are indeed psycho-physical lawlike connections. On the other hand, if we wish to retain the principle of the anomalism of the mental then we must reject causal efficacy and embrace epiphenomenalism.