The theory posits that mental properties are supervenient on physical states, meaning that any change in mental properties must correspond to a change in the underlying physical configuration.

The concept of supervenience is central to debates about whether mental states can be fully explained by physical processes.

Philosophers debated whether the observed superveniences could be explained solely by physical laws.

The philosopher argued that moral properties demonstrate a clear superveniency on natural facts, making ethical judgments dependent on empirical states.