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
George Dodgson Callow 1863 and "Coastal Scene, Isle of Wight" in 1864. He appears to have specialised in landscapes and maritime painting. He was married to Katherine Elston in 1866. The couple are not known to have had any children. He died in 1875. His work is included in a number of public collections in the United Kingdom, including Middlesbrough Institute of Modern Art and Brighton and Hove Museum and Art Gallery. George Dodgson Callow George Dodgson Callow (1829–1875) was an English painter who specialized in landscapes and maritime water color painting. Callow was born in Liverpool in 1829; according to the Parish