Kim's building-up construction equals Chinburg-Zhang's Hilbert symbol method for binary self-dual codes; a q-ary version via isotropic lines yields optimal codes over GF(5) and GF(13), with Lean formalization of the core.
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Formalizing building-up constructions of self-dual codes through isotropic lines in Lean
Kim's building-up construction equals Chinburg-Zhang's Hilbert symbol method for binary self-dual codes; a q-ary version via isotropic lines yields optimal codes over GF(5) and GF(13), with Lean formalization of the core.