𝔖 Bobbio Scriptorium
✦   LIBER   ✦

On computing the transitive closure of a relation

✍ Scribed by J. Eve; R. Kurki-Suonio


Publisher
Springer-Verlag
Year
1977
Tongue
English
Weight
647 KB
Volume
8
Category
Article
ISSN
0001-5903

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


ON THE TRANSITIVE HULL OF A ΞΊ-NARROW REL
✍ Karl-Heinz Diener; K.-H. Diener πŸ“‚ Article πŸ“… 1992 πŸ› John Wiley and Sons 🌐 English βš– 664 KB

## Abstract We will prove in Zermelo‐Fraenkel set theory __without axiom of choice__ that the transitive hull __R__\* of a relation __R__ is not much β€œbigger” than __R__ itself. As a measure for the size of a relation we introduce the notion of ΞΊ^+^‐__narrowness__ using __surjective__ Hartogs numbe