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.
Metamath logo. Logo of Metamath alephnull metamath org linked from metamath org html logo Norman Megill Public domain as indicated at metamath org html logo Norman Megill logo Software logos
Page 2023 Free-images.com. All images are Public Domain