A Glastonbury Romance A Glastonbury Romance A Glastonbury Romance was written by John Cowper Powys (1873–1963) in rural upstate New York and first published by Simon and Schuster in New York City in March 1932. An English edition published by John Lane followed in 1933. It is the second of Powys's Wessex novels, along with "Wolf Solent" (1929), "Weymouth Sands" (1934) and "Maiden Castle" (1936). Powys was an admirer of Thomas Hardy and these novels are set in Somerset and Dorset parts of Hardy's mythical Wessex. The first two chapters of "A Glastonbury Romance" takes place in Norfolk, where the late Canon William
S (set theory) a set "x" whose members are just those sets satisfying "A"("y"). The role of "Spec" in S is analogous to that of the axiom schema of specification of Z. Boolos’s name for Zermelo set theory minus extensionality was "Z-". Boolos derived in S all axioms of "Z-" except the axiom of choice. The purpose of this exercise was to show how most of conventional set theory can be derived from the iterative conception of set, assumed embodied in S. Extensionality does not follow from the iterative conception, and so is not a theorem of S. However, S + Extensionality is