Sunday, 10 April 2016

From VBGYOR to ROYGBV, to ROYGBVBGYOR, and then to their implicative extensions Part 4.


From VBGYOR to ROYGBV to VBGYOR/ROYGBV, and then to their implicative extensions Part 3.


From VBGYOR to ROYGBV to VBGYOR/ROYGBV, and then to their implicative extensions Part 2.