Deborah Cavendish, Duchess of Devonshire Deborah Cavendish, Duchess of Devonshire Deborah Vivien Cavendish, Duchess of Devonshire, (born Deborah Freeman-Mitford and latterly Deborah, Dowager Duchess of Devonshire; 31 March 1920 – 24 September 2014) was an English aristocrat, writer, memoirist and socialite. She was the youngest and last surviving of the six Mitford sisters, who were prominent members of English society in the 1930s and 1940s. Known to her family as "Debo", Deborah Mitford was born in Asthall Manor, Oxfordshire, England. Her parents were David Freeman-Mitford, 2nd Baron Redesdale (1878–1958), son of Algernon Freeman-Mitford, 1st Baron Redesdale, and his wife, Sydney (1880–1963), daughter of Thomas Gibson
Unity of the proposition Unity of the proposition In philosophy, the unity of the proposition is the problem of explaining how a sentence in the indicative mood expresses more than just what a list of proper names expresses. The problem was discussed under this name by Bertrand Russell, but can be traced back to Plato. In Plato's "Sophist", the simplest kind of sentence consists of just a proper name and a universal term (i.e. a predicate). The name refers to or picks out some individual object, and the predicate then says something about that individual. The difficulty is to explain how the predicate does