# Unfolding definitions without hiding cycles How can a vocabulary be unfolded through its own definitions without concealing circularity? Expose definitions that reuse other defined objects, and compare compact names with recursively substituted forms. Status: open problem. Formulation and comparisons: reconstruction. Development: historical branch. ## Alternative representations ### Named concepts Affords: Keeps a large definition compact. Limits or losses: Dependencies remain implicit. ### Substituted definitions Affords: Makes reused definitions visible. Limits or losses: Recursive substitution may never terminate or may erase useful distinctions. ## Tension Unfolding can clarify a concept or merely move its circularity out of sight. ## Challenge What marks an unresolved cycle, and when is a cycle a valid recursive definition? This challenge is an editorial prompt, not a claim that the evidence already resolved it. ## Proposed next move Unfold a small vocabulary with a depth bound and explicit cycle markers; compare readers’ interpretations. Status: new model-proposed experiment or extension; not a reported result. ## Related problems - [One structure, several renderings](structure-across-renderings.md) — opens a local operation (corpus_evidence). Changing the representation included substituting defined objects with their definitions. - [The next description becomes another object](objectifying-the-meta-level.md) — exposes a recurrence (retrospective_connection). A definition can become an object for another definition; the analogy does not equate linguistic circularity with every formal limit. ## Evidence anchors - basis-recursive-definitions: The material asks to identify defined objects that appear inside other definitions and replace their names with their definitions. A separate methodological question asks whether internal variants of an idea can help challenge it alongside opposing ideas. [Editorial paraphrase; presence of a proposal does not verify its truth.] Root evidence and private recovery mappings are not part of this public release. [Open in the reader](../index.html#node=recursive-definitions) · [All problems](../CATALOG.md) ## Research editions - [Vertical Infinity and Reflexive Representation](../documents/vertical-infinity-and-reflexive-representation.md) (reconstruction).