Vitamin B2, also called riboflavin, is essential for proper adrenal function and overall nerve health. Dairy products, such as cheese, are rich sources. Vitamin B2, also called riboflavin, is essential for proper adrenal function and overall nerve health.
n. 1. (Mathematics) maths. a. a set the members of which are all members of some given class: A is a subset of B is usually written AâB. b. proper subset one that is strictly contained within a larger class and excludes some of its members.
Now let's think about subsets and sizes: 1  The empty set has just 1 subset: 1. 2  A set with one element has 1 subset with no elements and 1 subset with one element: 1 1. 3  A set with two elements has 1 subset with no elements, 2 subsets with one element and 1 subset with two elements: 1 2  1.