<tt>
Mathematics verification expression: Mvx
</tt>

<ms>
- Instruction: Mvx#
- Parameter: # numeric identifier of expression
- Return: true if the index is inside the expression

- Description:
Returns true if the character is inside the expression marked by an identifier. This instruction must be used only in text which has been previously marked with the instruction "Mvw#". The identifier is always an integer.

- Examples:

Text string: 5
Braille string: 156
Condition: Mvx100
Description: If the character "5" is inside the expression marked with the identifier "100" it is transcribed with the cell "156".
</ms>

<rl>
</rl>

<ck>
01NGTGBFTE95XR
</ck>

<in>

</in>
