Maiden Castle (novel) Maiden Castle (novel) Maiden Castle by John Cowper Powys was first published in 1936 and is the last of Powys so-called Wessex novels, following "Wolf Solent" (1929), "A Glastonbury Romance" (1932), "Weymouth Sands" (1934). Powys was an admirer of Thomas Hardy, and these novels are set in Somerset and Dorset, part of Hardy's mythical Wessex. American scholar Richard Maxwell describes these four novels "as remarkably successful with the reading public of his time". "Maiden Castle" is set in Dorchester, Dorset Thomas Hardy's Casterbridge, and which Powys intended to be a "rival" to Hardy's "Mayor of Casterbridge". Glen Cavaliero describes Dorchester
S (set theory) S (set theory) S is an axiomatic set theory set out by George Boolos in his 1989 article, "Iteration Again". S, a first-order theory, is two-sorted because its ontology includes “stages” as well as sets. Boolos designed S to embody his understanding of the “iterative conception of set“ and the associated iterative hierarchy. S has the important property that all axioms of Zermelo set theory "Z", except the axiom of extensionality and the axiom of choice, are theorems of S or a slight modification thereof. Any grouping together of mathematical, abstract, or concrete objects, however formed, is a "collection", a