Assertion: combination's number | /r/HasProperty | given by multinomial coefficient
Facets:
Source sentences:
text: If the multiplicities of the elements of M (taken in some order) are m 1 {\displaystyle m_{1}} , m 2 {\displaystyle m_{2}} , ..., m l {\displaystyle m_{l}} and their sum (that is, the size of M) is n, then the number of multiset permutations of M is given by the multinomial coefficient,