In the CTC(1), the dual effect made in Statement 2 can be further elaborated below between $l\left(i,j\right)$ and $l\left(i,\widehat{j}\right)$ .

(i) For $l\left(i,j\right)=l\left(i,\widehat{j}\right)$ , if $1\le j,\widehat{j}\le 23$ , then