A new tag, (real), was created today and applied to this question about the real numbers as a subset of the complex numbers. I feel that this question fits perfectly well under the tag (complex-numbers) alone, and furthermore I cannot think of a question which would fit under the tag (real) better than it would under (real-analysis) or (complex-numbers), (quaternions), etc. if it's about the reals as a subset of some larger structure. Should the tag be deleted, and if so would a user with appropriate privileges be kind enough to oblige?
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Done. In the future, you don't need to ask a meta question to do this; just flag or make a suggested edit.