This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Example of is proper subset of B.svg en Example for proper subset de Beispiel einer echten Teilmenge own me Stephan Kulla User Stephan Kulla other versions File Example of is no proper subset of svg Two identical sets Created with Inkscape cczero Uploaded with Subsets
Page 2023 Free-images.com. All images are Public Domain