Determines if every alternative subset in {@code altsets} contains more
than one alternative.
@param altsets a collection of alternative subsets
@return {@code true} if every {@link BitSet} in {@code altsets} has
{@link BitSet#cardinality cardinality} > 1, otherwise {@code false}
Determines if every alternative subset in {@code altsets} contains more than one alternative.
@param altsets a collection of alternative subsets @return {@code true} if every {@link BitSet} in {@code altsets} has {@link BitSet#cardinality cardinality} > 1, otherwise {@code false}