Author: Urs Format: MarkdownItexadded a remark ([here](https://ncatlab.org/nlab/show/Vandermonde+determinant#SkewSymemtryUnderSwappingVariables)) that the expression $\prod_{1\leq i\lt j\leq n} (x_j - x_i)$ changes sign under exchange of any pair of variables.
Also tried to beautify the formatting throught the entry.
<a href="https://ncatlab.org/nlab/revision/diff/Vandermonde+determinant/4">diff</a>, <a href="https://ncatlab.org/nlab/revision/Vandermonde+determinant/4">v4</a>, <a href="https://ncatlab.org/nlab/show/Vandermonde+determinant">current</a>
added a remark (here) that the expression changes sign under exchange of any pair of variables.
Also tried to beautify the formatting throught the entry.