Uniform Lyndon interpolation is shown for GLS via non-wellfounded proofs, closing a prior gap and yielding an alternative cut-elimination proof.
Kushida (2020): A Proof Theory for the Logic of Provability in True Arithmetic
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Uniform Lyndon Interpolation via Non-wellfounded Proofs
Uniform Lyndon interpolation is shown for GLS via non-wellfounded proofs, closing a prior gap and yielding an alternative cut-elimination proof.