This is a local identifier that was minted when the nanopublication was created.https://w3id.org/np/RAZnSuo6CB.../activityactivityhttp://purl.org/dc/terms/descriptiondescription"A single sandboxed chat session beginning from the Pythagorean theorem in Mathlib's inner product spaces (norm_add_sq_eq_norm_sq_add_norm_sq_of_inner_eq_zero) and EuclideanSpace ℝ (Fin n), pivoting to the synthetic question, and building the Lean 4 artifact over successive turns. Sources were drawn from model memory of SST and GeoCoq; no network access and no Lean toolchain were available, so all proofs were verified by hand-tracing (and, for SST 7.13, by an additional coordinate check) rather than by compilation."
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This is a local identifier that was minted when the nanopublication was created.https://w3id.org/np/RAZnSuo6CB.../activity-isccactivity-iscchttp://purl.org/dc/terms/descriptiondescription"Generated the ISCC-CODE (ISO 24138) for Tarski.lean using iscc-sdk v0.9.4 via a standalone content-identification workflow (iscc-workflow/generate_iscc.py). Fetched the commit-pinned GitHub blob (johnmaxton/lean4-starter @ 90018aec70b2bb8950c1045cac443731825d79ef) and confirmed it is byte-identical (same SHA-256) to the local working copy before generating the code. Because the .lean extension is unrecognized by iscc-sdk's mediatype map, content-based text auto-detection (added to the workflow for this case) was used to process the file as text/plain rather than a raw-bytes fallback."
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This is a local identifier that was minted when the nanopublication was created.https://w3id.org/np/RAZnSuo6CB.../activity-verifyactivity-verifyhttp://purl.org/dc/terms/descriptiondescription"A follow-up session with a working environment (network access, elan/Lean toolchains). Compiled `lean Tarski.lean` standalone and, separately, built it as a `lake` library target in two projects (pythagoras4, using leanprover/lean4-nightly:nightly-2023-05-16; and lean4-starter, using leanprover/lean4:v4.32.0). Found and fixed one error: the closing `example` used Mathlib's `∃!` notation, unavailable in core Lean 4, rewritten as its explicit unfolding. Both toolchains now build the file with zero errors and zero `sorry`s."
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This is a local identifier that was minted when the nanopublication was created.https://w3id.org/np/RAZnSuo6CB.../src-conversationsrc-conversationhttp://purl.org/dc/terms/descriptiondescription"Full transcript export (36 messages, participants 'Claude (Anthropic PBC)' and the human ORCID holder, per the export's own metadata) of the sandboxed formalization dialogue recorded as sub:activity; the source-of-record for this nanopublication's account of that session, ISCC-identified for tamper-evident reference."
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