Nothing false or faulty about this at all. In the Amadeus school of Socionics, math and Socionics are especially intertwined:
http://www2.bc.cc.ca.us/math/what_is_math.htm
In Joe-cionics, the IEs are boiled down into groups of three binary dichotomies; External/Internal, Static/Dynamic, and Object/Field. Aspectonics already does this, but the IEs are altered into something strictly different in Joe-cionics. A "0" or "1" will serve to differentiate one side of a dichotomy from another. Going from left to right, placing the aforementioned dichotomies in individual digit columns, we would be left with the following:
Joe-cionics-----------Socionics
Ne -> 001 -> 1 ≠ 4 <- 100 <- Ne
Fi -> 100 -> 4 ≠ 5 <- 101 <- Fi
Se -> 000 -> 0 = 0 <- 000 <- Se
Ti -> 101 -> 5 ≠ 1 <- 001 <- Ti
Si -> 111 -> 7 ≠ 3 <- 011 <- Si
Te -> 010 -> 2 = 2 <- 010 <- Te
Ni -> 110 -> 6 ≠ 7 <- 111 <- Ni
Fe -> 011 -> 3 ≠ 6 <- 110 <- Fe