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.
Sets and subsets. 2.1 Introduction. A well-deï¬ned collection of objects is known as a set. This concept, in. its complete generality, is of great importance in mathematics since all. of mathematics can be developed by starting from it. The various pieces of furniture in a given room form a set.