multiset
Noun
Meaning
multiset (plural multisets)
(set theory) A generalized type of set in which multiple occurrences of an element are permitted.
Synonyms: bag, mset
Two words are anagrams if they are made up of the same multiset of letters.
Related terms
Examples
Another question is whether possible equality among entries in the given sequence is to be taken into account; if so, one should only generate distinct multiset permutations of the sequence.
In another generalized notion, E is a multiset of unordered pairs of (not necessarily distinct) vertices.
Generalization to negative integers For any n, : In particular, binomial coefficients evaluated at negative integers are given by signed multiset coefficients.
It can handle repeated values, for which case it generates the distinct multiset permutations each once.
The resulting numbers are called multiset coefficients ; citation.
Thus any groupoid is equivalent to a multiset of unrelated groups.