[tex-k] Is TeX in the public domain?
胡亚捷 (Hu Yajie)
2500418497 at qq.com
Mon Dec 28 09:20:38 CET 2020
The copyright page of Volume B states that "The program for TeX is in the
public domain," and http://tug.org/texlive/copying.html also says so.
Well, we all know that "public domain" means "no copyright restrictions",
yet tex.web has a copyright notice that forbids copying modified versions,
not even if the file is given a different name. Are they contradictory?
The more lenient "Knuth License" on ctan.org/license/knuth does allow
modification as long as the name is changed. This seems to be another
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