Multiset, mset or bag
A bag is a set in which duplicate elements are allowed.
An ordered bag is a list that we use in programming.
Planted:
by L Ma;
References:
Dynamic Backlinks to
cards/math/multiset-mset-bag
:LM (2020). 'Multiset, mset or bag', Datumorphism, 12 April. Available at: https://datumorphism.leima.is/cards/math/multiset-mset-bag/.