Venn diagram with increasing numbers of sides. They are also two-dimensional representations of hypercubes. Henry John Stephen Smith devised similar "n"-set diagrams using sine curves with the series of equations Charles Lutwidge Dodgson (aka Lewis Carroll) devised a five-set diagram known as Carroll's square. Joaquin and Boyles, on the other hand, proposed supplemental rules for the standard Venn diagram in able to account for certain problem cases. For instance, regarding the issue of representing singular statements, they suggest to consider the Venn diagram circle as a representation of a set of things, and use first-order logic and set theory to treat categorical
Skeffington Lutwidge The expedition sailed up to and around Spitsbergen, managing to reach within ten degrees of the North Pole, but was prevented from travelling further north by thick sea ice, and returned to Britain in September. Sailing with the "Carcass" was a young Horatio Nelson, whose position as a midshipman on the expedition had been arranged by his uncle, Maurice Suckling. Suckling and Lutwidge knew each other well, Lutwidge having served under Suckling on a number of occasions, including time spent acting against privateers in 1771. Nelson was given the role of coxswain of Lutwidge's gig. Nelson managed to obtain command