Fox derivative
= Fox derivative
{c}
{title2=$\partial/\partial x$}
The Fox derivative of a word in a <free group> obeys $\partial(uv)/\partial x=\partial u/\partial x+u\,\partial v/\partial x$ and $\partial x^{-1}/\partial x=-x^{-1}$.
= Fox derivative
{c}
{title2=$\partial/\partial x$}
The Fox derivative of a word in a <free group> obeys $\partial(uv)/\partial x=\partial u/\partial x+u\,\partial v/\partial x$ and $\partial x^{-1}/\partial x=-x^{-1}$.