Radicals ( Radical11) two strokes in Kanji;

dimensional, e.g.

IFF mathematics, also see: multiplier;

directional, e.g.

;

logical, e.g.

caret character in programming e.g. ASCII (94);
under one roof;
under one roof is WHERE not to argue each other, because not 2 mouths at the top;

numerological, e.g.

2;

structural, e.g.

since 2 strings are toward both left and right equally, holes must be at the center, or holes must be below under horizontal level one line;

IFF vertical line is under the Radical11, counter for articles;
IFF vertical line is under the Radical11, individual;

Radicals;