anonanon 152k1212 gold badges233233 silver badges398398 bronze badges $endgroup$ 4 $begingroup$ That is great many thanks a bunch! I also posted an analogous query right here: math.stackexchange.com/queries/2135276/… that You may have some Perception on? $endgroup$The significance of Levi-Civita Qualities in four Proportions lies within their fun