orthonormal comments on Games for factoring out variables

[orthonormal]

Typo in the “Single Variable Maximalisation” section: you meant to write $R\left(a\right)R^{\prime }\left(a^{\prime }\right)$ rather than $R\left(a\right)R\left(a^{\prime }\right)$.

[Stuart_Armstrong]

Thanks, corrected!