Difference between revisions of "Tree (set theory)"
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== External links == | == External links == | ||
| − | * [https://en.wikipedia.org/wiki/Tree_(set_theory) | + | * [https://en.wikipedia.org/wiki/Tree_(set_theory) Tree (set theory)] @ Wikipedia |
[[Category:Mathematics]] | [[Category:Mathematics]] | ||
[[Category:Set theory]] | [[Category:Set theory]] | ||
Revision as of 16:11, 9 May 2016
In set theory, a tree is a partially ordered set (T, <) such that for each t ∈ T, the set {s ∈ T : s < t} is well-ordered by the relation <.
Description
Frequently trees are assumed to have only one root (i.e. minimal element), as the typical questions investigated in this field are easily reduced to questions about single-rooted trees.
See also
- Cantor tree
- Continuous graph
- Kurepa tree
- Partially ordered
- Prefix order
- Laver tree
- Set (mathematics)
- Tree (descriptive set theory)
- Well-ordered
External links
- Tree (set theory) @ Wikipedia
