What is the symbol of the transcendental numbers?

Question

the symbol of the natural numbers is $\mathbb{N}$, for integers it is $\mathbb{Z}$, for rationals it is $\mathbb{Q}$, for irrationals it is $\mathbb{I}$, and for transcendental numbers it is *not found*

what is the symbol? and why wikipedia doesn't put this symbol in their website?

the wikipedia page i found was this

Answer 1

There is no standard symbol for the set of transcendental numbers. If one needed to express it in symbols, it would probably be $\Bbb R \setminus \overline{\Bbb Q}$, with the understanding that $\overline{\Bbb Q}$ represents the algebraic closure of the rational numbers, that is, the algebraic numbers.

In the end, I would try avoiding using a symbol for this set whose English name "the transcendental numbers" is perfectly descriptive (just as I would for "the irrational numbers"); and if I did decide I needed a symbol for it, I would explicitly define the notation even if it had appeared in some other source.