The Social Contract is not easy to read and easily seen as obscure.
Especially in the Book II, chapter 3, when the general will and the will of all are two sums in the same formula.
Why ? Because this rousseauian treatise is written in the language of calculus and geometry, without any geometrical figure, with a very special art of writing… or hiding.
Then, the best companion to the reader is nothing but those simple hidden mathematics. Their elements compose this free application.