A+B cannot be equal to A unless B is 0. A set containing itself in addition to a copy of itself is impossible due to this rule. It would be like saying that A = 2A. Unless the set of all sets was empty to begin with, the notion that it can contain itself in addition to everything else is logically unsound.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence