Category:Open problems
Appearance
Pages in this category should be moved tae subcategories whaur applicable. This category mey require frequent maintenance tae avoid acomin too lairge. It should directly contain very few, if ony, airticles an should mainly contain subcategories. |
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Subcategeries
This categerie haes the follaein 3 subcategeries, oot o 3 awthegither.