On the complexity of recursive path orderings
β Scribed by Wayne Snyder
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 564 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0020-0190
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π SIMILAR VOLUMES
We consider first order modal logic C firstly defined by Carnap in "Meaning and Necessity" [1]. We prove elimination of nested modalities for this logic, which gives additionally the Skolem-LΓΆwenheim theorem for C. We also evaluate the degree of unsolvability for C, by showing that it is exactly 0 .
In this note a prelattice L is a poset ( Ο partially ordered set) ( L , Ρ ) such that L Ο L Κ Ν 0 , 1 Ν is a lattice , where 0 and 1 are two new elements such that 0 Ο½ x Ο½ 1 , for all x L (see Definition 2 . 1) . Let L be a finite prelattice . The main result in this note is closely related to a re