Anonanon 152k1212 gold badges233233 silver badges398398 bronze badges $endgroup$ 4 $begingroup$ That is best many thanks a bunch! I also posted an analogous question here: math.stackexchange.com/queries/2135276/… that You may have some insight on? $endgroup$ The significance of Levi-Civita properties in four dimensions lies in their purpose while in the mathematical https://davidl801yup7.blogspothub.com/profile