Alphabeta Math
PropositionStatement: AI-adaptedProof: AI-adaptedPipeline-generatedprecheck passjudge pass (gpt-5.6-terra)audited 2026-09-14
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.

Adjoint intertwines the exponential map

Statement

Assume ACω. Let G be a finite-dimensional real Lie group with Lie algebra g. For every g∈G and X∈g,

gexp⁡G(X)g−1=exp⁡G(Ad⁡gX).

The countable-choice assumption is inherited exactly from exponential naturality.

Facts & Assumptions

Given: ACω, a finite-dimensional real Lie group G, g∈G, and X∈g=TeG.

[F1]

ACω is countable choice. The Axiom of Countable Choice (ACω).

[F2]

Conjugation Cg(h)=ghg−1 is a Lie-group automorphism and d(Cg)e=Ad⁡g. Conjugation and the adjoint representation of a Lie group.

[F3]

Every Lie-group homomorphism F satisfies F(exp⁡X)=exp⁡(dFeX), assuming ACω. Exponential map is natural for Lie-group homomorphisms.

Proof

technique · direct
1.1F2F3

Apply exponential naturality [F3] to the conjugation automorphism Cg from [F2]. Since d(Cg)e=Ad⁡g, it gives Cg(exp⁡GX)=exp⁡G(Ad⁡gX). Expanding the definition of Cg is the claimed identity.

2.1F1F2F3step 1.1∎

A Lie group is nonempty and boundaryless. If dim⁡G=0, both sides equal the conjugate of the identity, and dimension one requires no change; X=0 gives e on both sides. No metric, degeneracy, interval, endpoint, or biconditional occurs. The only choice use is the stated ACω inherited through [F3]; fixing one g and one X adds no choice.

Depends on

Used by

Dependency tree · two levels

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Sources