Category talk:Oxy-acetylene welding
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@Andy Dingley: Are you aware of this category beeing overcategorized, which shall be avoided according to com:overcat? The category-tree goes at the moment like this:
--Der-Wir-Ing (talk) 16:53, 13 July 2017 (UTC)
- Category:Oxy-acetylene welding is an important and recognisable form of welding. It belongs directly in Category:Welding. That is itself enough reasons: readers who have found "welding" will expect to have a direct path to "oxy-acetylene welding".
- Removal of implicit supercategories is only a valid move if that supercategories is indeed implicit. category:Oxy-fuel welding and cutting is not completely a subset of category:welding - most of it is about cutting, not welding. Oxy-fuel includes oxy-propane, which can't be used for welding. As category:Oxy-fuel welding and cutting is not entirely a subset of welding, Category:oxy-acetylene welding is thus not implicitly a subcategory of category:welding, and so the membership should be added explicitly. This is a second reason to keep it.
- It is a mistake to think that MediaWiki categorization is ontologically defining. It is not, it is not sophisticated enough for that. It is primarily navigational. Andy Dingley (talk) 17:07, 13 July 2017 (UTC)