Volume of overlapping information

[Wladimir D]

I noticed that on bifolio 104v-115r on sections 2 and 4, ink was applied, which are not found in color on other pages. On site 3, in the process of writing quality of writing letters worsens , either the ink in the ink tank dried up, or the feather worn out. Finding such ink supports the version that the text was written before stitching.

   
I decided to intersecting the words of the text on this bifolio.
V (tx) - the amount of text on the pages.
N - is the number of identical words.
N (un) - the number of unique words on the page.
N (U) - is the number of intersecting words, taking into account the repetition on the corresponding page.
It is necessary to introduce the term V (∩) volume of overlapping information. This ratio is N (U) / V (tx), expressed as a percentage.
               V(tx)      N(un)                 N                     N(υ)                V(∩)  

104V        458        64=14,0%          93                   207                  45,2%
115R        444        64=14,4%          93                   206                  46,4%
The flip side of this bifolio gives results worse.
               V(tx)      N(un)                 N                     N(υ)                V(∩)  

104R        438        74=16,9%          80                   158                  36,1%
115V        399        74=18,5%          80                   137                  34,3%

114V/115R      V(tx)=362/444    N=74   N(υ) =133/160      V(∩)  = 36,7/36,0%
104V/105R      V(tx)=458/370    N=60   N(υ)  =142/120     V(∩)  = 31,0/32,4%  
103V/104R      V(tx)=450/438    N=67   N(υ)  =196/147     V(∩)  = 43,6/33/5%
104R/104V     V(tx)=438/458     N=73   N(υ) = 153/178     V(∩)  = 34,9/38,9%
Even higher results for bifolio 78V-81R, where the left and right pages are connected by pipes.
               V(tx)      N(un)                 N                     N(υ)                V(∩)  

78V       292        13=4,45%          53                   157                  53,8%
81R       207        14=6,76%          53                   112                  54,1%

A high result (albeit a little lower), in bifolio 79v-80r, where stitching is done.
               V(tx)      N(un)                 N                     N(υ)                V(∩)  

79V        355       35=9,86%           66                     169                  47,6%
80R        441       44=10.0%           66                     225                  51,0%

I did about 40 comparisons, from Pn = n! = 204!
The minimum V (∩) I received

  1R/104V      V(tx)=210/458    N=28  N(υ)  =58/56   V(∩)  =27,6/12,2% 
49V/104V      V(tx)=142/458    N=22   N(υ)  =42/46   V(∩)  =29,6/10,0%  
 But here V (tx) can exert a great influence.