Numerals

OK. I have returned to being all at sea with the numerals at the climax of After Doomsday, 15.

See Donnan's Second Moment Of Realization And A Solution?

Arabic And Kandemirian Numerals, The Latter Replaced By Roman Letters

0 L

1 A

2 B

3 C

4 D

5 E

6 F

7 G

8 H

9 I

10 J

11 K

12 AL

Arabic And Monwaingi Numerals, The Latter Replaced By Roman Letters

0 R

1 M

2 N

3 O

4 P

5 Q

6 MR

We are told that:

BA=NQ=25

- and that:

ABIJ=MOQMP=2134

How come?

OK. I realize where I am going all wrong again. But I had to write it all out like this again before I realized. Maybe Anderson/Donnan could have explained it in more detail for the benefit of non-mathematicians.