Article contents
Tree self-embeddings
Published online by Cambridge University Press: 20 November 2018
Abstract
Elementary proofs are given of the following two statements: (1) Every infinite tree of height at most ω properly embeds into itself. (2) There is a tree of height ω + 1 that does not properly embed into itself.
- Type
- Research Article
- Information
- Copyright
- Copyright © Canadian Mathematical Society 1989
References
- 2
- Cited by