 Fréchet inequalities

For events $A$ and $B$, the Fréchet inequalities are

The Fréchet inequalities are a set of mathematical inequalities related to the concept of distance in metric spaces and the properties of certain functions. They are particularly significant in the context of probability and statistics, especially in relation to the Fréchet distance, which is used to measure the similarity between two probability distributions. In probability theory, the Fréchet inequalities express relationships between various statistical metrics, often involving expectations and norms.