Lean 4 core library
Reusable definitions and theorems for lists, arrays, natural numbers, and other core Lean data structures.
Evidence, by dimension
- Mechanical check
- not checked by us
- Checker / independent log: unknown
- Semantic assessment
- unreviewed
- No identified human semantic review
- Implementation correspondence
- none
- No independently evidenced correspondence to a caller implementation.
- Version applicability
- pinned
- Metadata inspected at the pinned revision; newer upstream commits may exist.
Assumptions
- Lean's logical foundations and the assumptions of each referenced theorem.
Limits of reuse
- This is a discovery entry for Lean v4.35.0, not an independent audit of the whole Lean system.
- Applicability to implementations in other languages is unknown.
Reuse notes
Inspect individual theorem statements and pin the Lean toolchain before importing.
Contribute upstream
Status: active. Browse upstream issues · Read contribution guidance
- Review or report core library issues upstream.
- Contribute formal lemmas following upstream guidance.
Pinned provenance
Associated project: Lean 4 core library
- Upstream
- https://github.com/leanprover/lean4
- Revision
eb6cafb7290e8bd5f2937522d8d804f58f02bafc- Location
- src/Init/Data/List/Lemmas.lean
- License
- Apache-2.0 — Lean 4 contributors.
- Source owners
- leanprover
- Metadata updated
- 2026-10-23
- Last metadata check
- 2026-10-23
- Publication decision
- accepted · Codex automated bootstrap curation (user-authorized) · 2026-10-23. Accepted for discovery after inspecting pinned upstream metadata. This is automated catalogue curation, not human semantic review or independent proof checking.
- Record digest
26729e5e75392bf24f4e4efdc49276df84b3d04dfc92fe88b54a71582eda5c4d
Publication reference · Report an incorrect or stale claim · Read the shared JSON snapshot
Catalogue snapshot fc348a2252e7 · source 5d5248f24dd7
Discovery supplies evidence. Applicability remains yours to establish.