Very equation heavy, which I think contributes to its brevity. Contrast that with some papers in other areas of math/TCS where you tend to be less equation hea

Very equation heavy, which I think contributes to its brevity. Contrast that with some papers in other areas of math/TCS where you tend to be less equation heavy and more wordy. For example, lots of algorithms papers don't make as heavy use of equations (though there are still some of course).