jabberwockypie just proved that Doctor/Rose is canon...with MATH!

"It is a well known mathematical fact that a negative times a negative makes a positive.
So if the Doctor is D, then logic dictates that the Master is -D, because he's evil.
Likewise, Lucy is -R, where R = Rose.
And the Master and Lucy are married. -Dx-R=Canon
Therefore, DxR=Canon also."