The essence does not belong to the lead   The essence of Pigenhole principle is to obscure the basic trivial principle maximum  average Yet this remark was removed from the intro with a note that it belongs to somewhere else I do not understand why short and valuable simplification of the definition belongs somewhere else and furthermore doesnt Wikipedia prescribe to keep simple definitions for the general population with prefer addrewirte over remove rule Is there such rule Why materials are always removed in the first place even faithful and valuable ones