Lax Lean Archive

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Proof of `Symmetric ABP characterisation` (2nd statement)

groundedproofs/Lax461425Proofs/Section6Characterisation.lean · lax-461425

What this proof establishes

thm✓Lax461425.SymmetricABPCharacterisation (2nd statement)

Assuming the claims on the left, the claim on the right holds — checked by the archive's pipeline. Proof code is not displayed here.

Read the Lean proof on GitHub

Description

Lemma 6.5. The reverse inclusion uses a single uniform pathwidth bound. The zero-dimensional index is represented by an actual ABP.