Get to know Cofinality better with 8 real example sentences, the meaning.
Cofinality in a sentence
Cofinality meaning
- The least of the cardinalities of the cofinal subsets of a partially ordered set.
- The property of being cofinal.
Using Cofinality
- The main meaning on this page is: The least of the cardinalities of the cofinal subsets of a partially ordered set. | The property of being cofinal.
- In the example corpus, cofinality often appears in combinations such as: the cofinality, cofinality of, of cofinality.
Context around Cofinality
- Average sentence length in these examples: 24.8 words
- Position in the sentence: 5 start, 2 middle, 1 end
- Sentence types: 8 statements, 0 questions, 0 exclamations
Corpus analysis for Cofinality
- In this selection, "cofinality" usually appears near the start of the sentence. The average example has 24.8 words, and this corpus slice is mostly made up of statements.
- Around the word, different, depends and introduced stand out and add context to how "cofinality" is used.
- Recognizable usage signals include 0 the cofinality of any and 1 the cofinality of any. That gives this page its own corpus information beyond isolated example sentences.
- By corpus frequency, "cofinality" sits close to words such as aargau, abacos and abboud, which helps place it inside the broader word index.
Example types with cofinality
The same corpus examples are grouped by length and sentence type, making it easier to see the contexts in which the word appears:
Of fundamental importance to the whole theory is the concept of cofinality that Hausdorff introduced. (15 words)
Thus the cofinality of a finite partially ordered set is equal to the number of its maximal elements. (18 words)
This demonstrates that the cofinality depends on the order; different orders on the same set may have different cofinality. (19 words)
In 1904 Hausdorff published the recursion named after him: For each non-limit ordinal we have This formula was, together with the later notion of cofinality introduced by Hausdorff, the basis for all further results for Aleph exponentiation. (38 words)
Examples * The cofinality of a partially ordered set with greatest element is 1 as the set consisting only of the greatest element is cofinal (and must be contained in every other cofinal subset). (33 words)
The cofinality of 0 is 0. The cofinality of any successor ordinal is 1. The cofinality of any nonzero limit ordinal is an infinite regular cardinal. (26 words)
Example sentences (8)
The cofinality of 0 is 0. The cofinality of any successor ordinal is 1. The cofinality of any nonzero limit ordinal is an infinite regular cardinal.
The cofinality of a set of ordinals or any other well-ordered set is the cofinality of the order type of that set.
This demonstrates that the cofinality depends on the order; different orders on the same set may have different cofinality.
Examples * The cofinality of a partially ordered set with greatest element is 1 as the set consisting only of the greatest element is cofinal (and must be contained in every other cofinal subset).
If two cofinal subsets of B have minimal cardinality (i.e. their cardinality is the cofinality of B), then they are order isomorphic to each other.
In 1904 Hausdorff published the recursion named after him: For each non-limit ordinal we have This formula was, together with the later notion of cofinality introduced by Hausdorff, the basis for all further results for Aleph exponentiation.
Of fundamental importance to the whole theory is the concept of cofinality that Hausdorff introduced.
Thus the cofinality of a finite partially ordered set is equal to the number of its maximal elements.
Common combinations with cofinality
These word pairs occur most frequently in English texts:
- the cofinality 9×
- cofinality of 8×
- of cofinality 2×