Alphabeta Math
PropositionStatement: AI-adaptedProof: AI-adaptedPipeline-generatedverified 2026-09-23 (gpt-6-sol)
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.

Integration on an oriented embedded submanifold

Statement

Let j:S↪M be an oriented embedded smooth k-submanifold, with boundary allowed. For a smooth k-form ω on M such that j∗ω has compact support on S, define ∫Sω:=∫Sj∗ω. If F:T→S is an orientation-preserving diffeomorphism, this equals ∫T(jF)∗ω. Compact support is required on S itself.

Facts & Assumptions

[F1]

Change of variables on oriented manifolds gives the orientation-preserving compact-support pullback identity in every dimension, with the integral defined by finite charts, including boundary charts.

[F2]

Embedded smooth submanifolds with boundary: An embedded smooth submanifold with boundary of M is a subset S⊆M supplied with a manifold-with-boundary smooth structure for which S↪M is a smooth embedding. In particular this definition does not assert S∩∂M=∂S.

[F3]

The pullback of a differential form: Let F:M→N be smooth, and let ω∈Ωk(N). The pullback F∗ω is the pullback of ω viewed as an alternating covariant k-tensor field: (F∗ω)p(v1,…,vk)=ωF(p)(dFpv1,…,dFpvk).

[F4]

Finite chart localization of compactly supported top forms, including boundary defines a choice-free finite-chart integral for every compactly supported top form on an oriented manifold with boundary, agreeing with the partition integral when countable choice is available.

Proof

Given: The objects and hypotheses in the statement above.

1.1F2F3F4

The specified embedding is smooth, so the pointwise formula j∗ω(v1,…,vk)=ω(djv1,…,djvk) defines a smooth top form on the oriented manifold S. Its assumed compact support makes its intrinsic finite-chart integral available, including when S has genuine boundary. This works for empty S, the zero form, and k=0.

2.1F1F3step 1.1∎

The pointwise pullback formula gives (jF)∗ω=F∗(j∗ω). Its support is compact because F is a diffeomorphism. Change of variables gives ∫TF∗(j∗ω)=∫Sj∗ω. A nonproper inclusion does not supply compact support by itself; that condition was explicitly assumed.

Depends on

Used by

Dependency tree · two levels

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Sources