\blacklozenge
The \blacklozenge symbol is used to represent a filled lozenge or diamond shape. It is often used in mathematical contexts to denote specific operations or properties, and can also be used in text to highlight or emphasize certain points.
Represents a specific operation or relation between A and B.
A \blacklozenge B
Used to emphasize an important note or point in a document.
\text{Important Note:} \blacklozenge
Denotes a custom operation defined in a mathematical context.
x \blacklozenge y = z