here ill post the quote from everestnews.com:
Carlos Carsolio: "To complete the 14 8,000ers one talks about reaching main summits of the fourteen mountains. These mountains have 21 independent summits of more than 8000 meters, and a considerable amount of antesummits (he considers an antesummit the central top of Shishapangma), if these are subsidiary summits then there are 22). That is to say, to be able to complete the fourteen, you must reach the highest point of each one. An interesting challenge for the generations of the future is to get to complete the 21 summits, one of them even remains unclimbed - the Mid Lhotse summit."
trunl