Farey determinants matrix

A new matrix operation based on inserting columns and rows, similarly to the mediant operation between fractions, gives rise to the Farey determinants matrix or, equivalently, the matrix of the numerators of the differences of Farey fractions. This matrix allows to visualize established properties and theorems of Farey fractions allowing for more intuitive demonstrations and easier understanding. Furthermore it is shown how some Farey determinants matrices contain other lower order Farey determinants matrices as block matrices around the main diagonal.