Which letters have lateral inversion?

Answer 1

A H I M O T U V W X Y.

Comment: 1) That's for capitals. It can be different for the "lower case" letters, of course.

2) Also, I'm not entirely sure what the question means. The letters given above are the ones that show "mirror symmetry". Sometimes that's called "reflection symmetry".

One half of the letter is like a reflection of the other about a center line called the line of symmetry.

Because of this symmetry, these letters will seem unchanged when viewed in a (flat) mirror. The other letters of the alphabet will show lateral inversion when viewed in the mirror.

Answer 2

i