\Vert
The \Vert symbol is used as a delimiter in mathematical expressions, often to denote norms, absolute values, or conditional probabilities. It is a versatile symbol that can be used in various contexts to enclose expressions or denote specific mathematical operations.
Denotes the norm of a vector x.
\Vert x \Vert
Represents the conditional probability of A given B.
P(A \Vert B)
Illustrates the triangle inequality for vector norms.
\Vert a + b \Vert \leq \Vert a \Vert + \Vert b \Vert