The introduction and removal of repeated individuals in a MP is
done by incrementing and decrementing the number of copies of
corresponding MIs. The MP enables the execution of traditional
genetic operators and allows the design of new operators using the
extra information (set of unique genotypes and associated number
of copies) to perform new tasks that benefit from such
information. Next, we briefly describe the behavior of genetic
operators using MPs, although in this work we only use multiset
adapted forms of mutation and replacement.