Cauchy's Inequality/Also known as

Cauchy's Inequality: Also known as
Cauchy's Inequality is also known as the Cauchy-Schwarz Inequality.

However, that name is also given to the more general Cauchy-Bunyakovsky-Schwarz Inequality, and so will not be used in this context on.

Some sources refer to this as the Cauchy-Schwarz inequality for sums.