This does not dispose of the problem, however, for efforts to assign a Hebrew letter to each Tarot trump in sequence produce an effect far from convincing. Mr. Waite, who reedited the Tarot, expresses himself thus: "I am not to be included among those who are satisfied that there is a valid correspondence between Hebrew letters and Tarot Trump symbols." (See introduction to The Book of Formation by Knut Stenring.) The real explanation may be that the major Tarots no longer are in the same sequence as when they formed the leaves of Hermes' sacred book, for the Egyptians--or even their Arabian successors--could have purposely confused the cards so that their secrets might be better preserved. Mr. Case has developed a system which, while superior to most, depends largely upon two debatable points, namely, the accuracy of Mr. Waite's revised Tarot and the justification for assigning the first letter of the Hebrew alphabet to the unnumbered, or zero, card. Since Aleph (the first Hebrew letter) has the numerical value of 1, its assignment to the zero card is equivalent to the statement that zero is equal to the letter Aleph and therefore synonymous with the number 1.