Derivative: Software which includes any portion of the Mod other than the API, with modifications, additions, or subtractions.
Normally I see the term "derivative work" which means that the work is based on a previous, "derived" work and includes copyrightable portions of the derived work. From this I can assume that this license's definition would be better written as follows:
Derivative: Software which includes any portion of the Mod other than the API. A modified version of the Mod is considered a Derivative.
Compare this with another interpretation:
Derivative: Software which includes any portion of the Mod other than the API, including modifications, additions, or subtractions to the Mod.
Yet another one, which provides a definition for "modifications"
Derivative: Software which includes any portion of the Mod other than the API, including modifications to the Mod (additions or subtractions)
And here's a less likely interpretation:
Derivative: Software which includes any portion of the Mod other than the API, including modifications, additions, or subtractions to the API.
Normally I see the term "derivative work" which means that the work is based on a previous, "derived" work and includes copyrightable portions of the derived work. From this I can assume that this license's definition would be better written as follows:
Compare this with another interpretation:
Yet another one, which provides a definition for "modifications"
And here's a less likely interpretation: