$\"\"$

\

The number is $\"\"$ .

\

The number $\"\"$ is a rational number $\"\"$ .

\

The number $\"\"$ is a real number $\"\"$ . \ \

\

The number $\"\"$ belongs to $\"\"$ and $\"\"$ .

\

$\"\"$

\

The number $\"\"$ belongs to $\"\"$ and $\"\"$ .