You can perform set operations between set variables based on the checksum of their elements and subgroups. The following set operators are used for the checksum set operations:
c& cU c\ cD cP. These are really transform operators, since elements by the same name may have different checksums, therefore a binned data structure is required; therefore, the following these operators have equivalent symbols:
c*& c*U c*\ c*D c*P
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