On a quick scour of the source code at https://github.com/Lisp-Stat/lisp-stat https://github.com/Lisp-Stat/lisp-stat, I can see that there's a `Copyright (c) 19

On a quick scour of the source code at https://github.com/Lisp-Stat/lisp-stat https://github.com/Lisp-Stat/lisp-stat, I can see that there's a `Copyright (c) 1991 by Luke Tierney` on `base/variables.lisp` in the initial commit. Interestingly, this code is released under the Microsoft Public License, which includes the text: "Copyright Grant- Subject to the terms of this license, including the license conditions and limitations in section 3, each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution or any derivative works that you create" which would imply that the answer to the GP's question needs to be "yes". Note: I have no idea who Luke Tierney is or what his contributions to this area might be, which is a failing on my part.