> For the complete documentation index, see [llms.txt](https://docs.snomed.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.snomed.org/snomed-international-documents/snomed-ct-glossary/a/axiom.md).
# axiom
## axiom
A true statement that serves as a premise or starting point for further reasoning.
#### Notes
* The *axioms* that specify SNOMED CT concept definition release files as SNOMED CT relationships or as OWL axioms that conform to the OWL Functional Syntax.
#### Change Notices
* Since July 2019 all axioms in the stated view of concept definitions have been represented as OWL axioms.\
Before July 2018, the stated view was represented using relationships and during a transitional period ending in July 2019 some *axioms* in stated view were represented using the OWL functional syntax.
* The inferred view \_\_ of concept definitions continues to be represented using relationships.
## Alternatives
* **OWL axiom**
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