Abstract
We present a constructive algebraic integration theory. The theory is constructive in the sense of Bishop, however we avoid the axiom of countable, or dependent, choice. Thus our results can be interpreted in any topos. Since we avoid impredicative methods the results may also be interpreted in Martin-L type theory or in a predicative topos in the sense of Moerdijk and Palmgren. We outline how to develop most of Bishop's theorems on integration theory that do not mention points explicitly. Coquand's constructive version of the Stone representation theorem is an important tool in this process. It is also used to give a new proof of Bishop's spectral theorem.
| Original language | English |
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| Journal | Dagstuhl Seminar Proceedings |
| Volume | 5021 |
| ISSN | 1862-4405 |
| Publication status | Published - 2006 |
| Event | Mathematics, Algorithms, Proofs 2005 - Wadern, Germany Duration: 9 Jan 2005 → 14 Jan 2005 |
Conference
| Conference | Mathematics, Algorithms, Proofs 2005 |
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| Country/Territory | Germany |
| City | Wadern |
| Period | 09/01/2005 → 14/01/2005 |
Keywords
- Algebraic integration theory
- choiceless constructive mathematics
- pointfree topology
- spectral theorem