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Oppose merge on the grounds that Equidimensional scheme, from the reference, seems independently notable. It does benefit from the definition and description at Dimension of a scheme, but that isn't by itself a reason to merge.@TakuyaMurata: would be happy to hear the counterargument; I'm not sure what your reason for the proposal was a year ago. Klbrain (talk) 18:29, 6 April 2020 (UTC)[reply]
I'm not saying it’s not notable; since both the articles are short, there are not much reason to have separate articles. Note that the notion “equidimensional scheme” doesn’t make much sense without the notion of dimension of a scheme. —- Taku (talk) 18:34, 6 April 2020 (UTC)[reply]