Category:Black and transparent Venn diagrams (image series)
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This category is an image set. It should contain only images that have the same style, and should have a parent category that is purely topical.
![](https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/System-search.svg/25px-System-search.svg.png)
meant as "A without B is empty"
Subcategories
This category has the following 2 subcategories, out of 2 total.