Is the intention to reverse engineer existing "open gaming content" and/or write "clean slate" text, such that it imitates 4E?
IIRC, mathematical formulas can't be copyrighted or trademarked?
That is, if one can replicate the system as a finite number of mathematical formulas.
IIRC, mathematical formulas can't be copyrighted or trademarked?
That is, if one can replicate the system as a finite number of mathematical formulas.