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.
Knot sum.svg en This picture shows the commutativity of the knot sum Own Jkasd Knot notation and operations Black line knots and links Knots and links on transparent background
Page 2023 Free-images.com. All images are Public Domain