The Mayor of Casterbridge The Mayor of Casterbridge The Mayor of Casterbridge: The Life and Death of a Man of Character is an 1886 novel by the English author Thomas Hardy. One of Hardy's Wessex novels, it is set in a fictional rural England with Casterbridge standing in for Dorchester in Dorset where the author spent his youth. It was first published as a weekly serialisation from January 1886. The novel is considered to be one of the Hardy's masterpieces, although it has been criticised for incorporating too many incidents: a consequence of the author trying to include something in every weekly published instalment.
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