Published online by Cambridge University Press: 12 March 2014
This paper is based on the notions originally described by Dekker [2], [3], and the reader is referred to these for explanation of notation etc. Briefly, we are concerned with a countably infinite dimensional countable vector space Ū with recursive operations, regarded as being coded as a set of natural numbers. Necessarily, then, Ū must be a vector space over a field which itself is in some sense recursively enumerable and has recursive operations.
The contents of this paper form part of a thesis written under the supervision of J. N. Crossley and submitted to the University of Oxford for the degree of Doctor of Philosophy.