Format | |
---|---|
BibTeX | |
MARCXML | |
TextMARC | |
MARC | |
DataCite | |
DublinCore | |
EndNote | |
NLM | |
RefWorks | |
RIS |
Files
Abstract
There is a Turing functional Φ taking A′ to a theory TA whose complexity is exactly that of the jump of A, and which has the property that A ≤ TB if and only if TA ⊴ TB in Keisler’s order. In fact, by more elaborate means and related theories, we may keep the complexity at the level of A without using the jump.