> ## Documentation Index
> Fetch the complete documentation index at: https://starkware-9575960b-starkzapv4.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Core qm31 m31 ops extern functions

## [Extern functions](./core-qm31-m31_ops-extern_functions)

| | |
| :- | :- |
| [m31\_add](./core-qm31-m31_ops-m31_add) | Addition of `m31` s in field. |
| [m31\_div](./core-qm31-m31_ops-m31_div) | Division of `m31` s in field. |
| [m31\_mul](./core-qm31-m31_ops-m31_mul) | Multiplication of `m31` s in field. |
| [m31\_sub](./core-qm31-m31_ops-m31_sub) | Subtraction of `m31` s in field. |


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