TheoremStatement: Literature-sourcedProof: AI-adaptedprecheck passaudited 2026-08-02
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.
Conjugation is an automorphism
Statement
Conjugation is an automorphism.
For each , the map , , is an automorphism.
Facts & Assumptions
Given: A group and .
[L1]
An automorphism is a bijective group homomorphism (Group isomorphisms, automorphisms and the set ).
[L2]
Inverses reverse products and is the inverse of (In a group , and , the order of the last product being essential).
Proof
technique · direct
1.1L1L2givenalgebra
Associativity gives , so is a homomorphism.
2.1step 1.1L1L2givenalgebra
The map is inverse to by cancellation.
3.1step 2.1∎
Thus is a bijective homomorphism and hence an automorphism.