 Regularities are closely tied to inferences. When a cause is invariably followed by its effect, it is reasonable to infer the effect from the cause. In the wake of logical empiricism and logical approaches to belief change, theories that explicitly analyse causation in terms of inference relations have cropped up. The basic idea is that effects are inferable from corresponding causes in the context of a suitable background theory using a suitable logic. Inferential theories offer solutions to the problems which were decisive for the decline of regularity theories. Such theories may thus be seen as successors of the regularity theories.