 This definition contains three conditions for a cause. First, a cause temporally precedes its effect. Second, a cause is contiguous to its effect. That is, a cause is in spatiotemporal vicinity to its effect. Third, all objects similar to the cause are in a “like relation” to objects similar to the effect. This third resemblance condition says that cause and effect instantiate a regularity. To see this, note the presupposition of the resemblance condition: causes and effects can be sorted into types. The objects which are like the cause are of a certain type and so are the objects which are like the effect. The third condition thus says that all objects of a certain type are followed by an effect of a certain type.