If any of them is missing or inadequate, the program is proprietary (nonfree)
non-free software = proprietary software
missing any of these = non-conformant license (relative to a free software license)
If any of them is missing or inadequate, the program is proprietary (nonfree)
non-free software = proprietary software
missing any of these = non-conformant license (relative to a free software license)
Free/Open Licenses Non-free Licenses
.