Abstract
We show that in a simple theory T (that eliminates finitary hyperimaginaries) in which the τf-topologies are closed under projections (e.g. T has the wnfcp) every type analyzable in a supersimple τf-open set has ordinal S U-rank. In particular, if in addition T is unidimensional, the existence of a supersimple unbounded τf-open set implies T is supersimple. We also introduce the notion of a standard τ-metric (for countable L) and show that for simple theories its completeness is equivalent to the compactness of the τ-topology.
| Original language | English |
|---|---|
| Pages (from-to) | 115-124 |
| Number of pages | 10 |
| Journal | Annals of Pure and Applied Logic |
| Volume | 142 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - Oct 2006 |
| Externally published | Yes |
Keywords
- Analyzability
- Unidimensional
- τ-open