# Page Not Found

The URL `reference/constraint-logic/predefined-constraint-classes` does not exist.

You might be looking for one of these pages:
- [Predefined Constraints](https://docs.sdv.dev/sdv/concepts/constraint-augmented-generation-cag/predefined-constraints.md)
- [❖ MixedScales](https://docs.sdv.dev/sdv/concepts/constraint-augmented-generation-cag/predefined-constraints/mixedscales.md)
- [❖ ReferenceTable](https://docs.sdv.dev/sdv/concepts/constraint-augmented-generation-cag/predefined-constraints/referencetable.md)
- [FixedCombinations](https://docs.sdv.dev/sdv/concepts/constraint-augmented-generation-cag/predefined-constraints/fixedcombinations.md)
- [FixedIncrements](https://docs.sdv.dev/sdv/concepts/constraint-augmented-generation-cag/predefined-constraints/fixedincrements.md)

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