Lax Lean Archive

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Proof of `Criteria for temperedness` (1st statement)

groundedproofs/Lax606786Proofs/Kingman/Core.lean · lax-606786

What this proof establishes

thm✓Lax606786.TemperedCriteria (1st 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 GitLab

Description

Birkhoff's theorem for gg and the telescoping identity Sn+1g−Sng=g∘σnS_{n+1} g - S_n g = g ∘ σⁿ.