How statement and proof provenance work
The first chip identifies the source of the statement or construction; the second identifies the source of its local proof or verification.
- Literature-sourced: the exact statement appears in a cited source; only wording and notation differ.
- AI-adapted: a semantically identical restatement of literature-sourced material, modulo indexing, notation, and boundary cases adopted by the library.
- AI-generated: a genuinely novel statement formulated by AI, with no source for the claim itself.
These labels describe origin, not correctness: citations and verification chips remain separate evidence.
The tangent bundle as a disjoint union
Definition
The tangent bundle of a smooth manifold is the disjoint union An element of is a tangent vector together with its base point, and the projection sends a vector in to . At this stage, no topology or smooth structure is yet imposed on .
Depends on
Used by
- A smooth vector field is a smooth section of the tangent bundle Definition
- Cotangent space and cotangent bundle as a disjoint union Definition
- Formal immersion between smooth manifolds Definition
- Gauss frame map of an immersion into Euclidean space Definition
- Hermitian metric and L² pairing on a compact Riemann surface Definition
- Interior product of a form by a vector field Definition
- Nondegenerate zero of a vector field Definition
- Rotation number of an immersed oriented circle in the plane Definition
- Stable normal inverse of the tangent bundle Definition
- The frame bundle of a smooth manifold Definition
- The global differential or tangent map Definition
- The induced tangent bundle chart Definition
- The type (r,s) tensor bundle Definition
- Compact isotopic submanifolds have isomorphic normal bundles and diffeomorphic complements Example
- Self-intersection of the zero section in an oriented plane bundle Example
- The diagonal in the two-sphere has self-intersection two Example
- The standard sphere immersion and its normal line Example
- The velocity field of an isotopy is well defined along its image Lemma
- The index of a zero is its zero-section intersection number Proposition
- Assuming countable choice, the tangent bundle has a canonical smooth 2n-manifold structure Theorem
Dependency tree · two levels
3 results within two dependency steps of this one, each drawn at its shortest distance from it. An arrow runs from a result to what uses it, so the chart reads left to right and ends at this result, which carries a heavier outline. Every node is a link to that result. Click elsewhere on the chart to enlarge it.
Sources
- John M. Lee, Introduction to Smooth Manifolds (standard reference, not scraped)
- Will J. Merry, Differential Geometry (standard reference, not scraped)
- Nigel Hitchin, Differentiable Manifolds (standard reference, not scraped)