Capacity of a set

In mathematics, particularly in the fields of measure theory and set theory, the term "capacity" can refer to a few different concepts, depending on the context. Here's a brief overview: 1. **Set Capacity in Measure Theory**: In the context of measure theory, capacity is a way to generalize the concept of "size" of a set. The capacity of a set can refer to various types of measures assigned to sets that may not be measurable in the traditional sense.