Which symbol represents a lower value in mathematical notation?

In mathematical notation, the symbol that indicates a lower value is the "less than" symbol. This symbol is commonly used to compare two values, where the expression "A < B" conveys that A is smaller than B, thereby establishing a clear relationship of values.

Understanding the use of this symbol is crucial in various mathematical and scientific contexts, as it helps in solving inequalities, analyzing data, and formulating conditions for general principles in both academic and practical applications. Unlike the other symbols mentioned, which serve different functions such as denoting relationships of equality or indicating grouping in expressions, the less than symbol specifically indicates the concept of comparative value in a downward direction. Therefore, it effectively communicates situations where one quantity is smaller than another.