. . . . . . "myle54xton@gmail.com" . "Myles Axton" . "2026-08-07T10:03:56Z"^^ . "Add copyright and license information to Tarski.lean" . "802b1d583032c44ea9affb2a61b0c8cda6c60b72" . "Copyright 2026 John Myles Axton orcid:0000-0002-8042-4131" . "Tarski.lean, line 2 (top-of-file comment block)" . "Synthetic (Lean namespace; declarations are qualified as Synthetic., e.g. Synthetic.cong_refl)" . "Two independent, mutually consistent sources: (1) the file's own header states 'Licensed under the Apache License, Version 2.0'; (2) the GitHub repository API (api.github.com/repos/johnmaxton/lean4-starter) reports license.spdx_id = 'Apache-2.0', backed by a LICENSE file at repo root matching the standard Apache 2.0 text." . "2026-07-18T14:18:18Z"^^ . "Add Tarski's synthetic Euclidean geometry (Stages 0-4)" . "90018aec70b2bb8950c1045cac443731825d79ef" . . "File is dependency-free (compiles with core Lean 4 alone, no Mathlib)" . "This file is dependency-free: it compiles with core Lean 4 alone (`lean Tarski.lean`), no Mathlib required." . "grep for '^import' in Tarski.lean returned zero matches; lake-manifest.json at the pinned commit lists packages: [] (zero external dependencies); the successful build in NP-A used only this manifest." . "CONFIRMED (this claim is machine-verifiable and is additionally recorded in NP-A's compilation evidence)." . . "GeoCoq project authorship" . "GeoCoq (J. Narboux, M. Beeson, P. Boutry, G. Braun, C. Gries, P. Schreck, et al.): the first machine-checked ascent." . "The repo's top-level AUTHORS file lists Beeson, Boutry, Braun, Gries, Kastenbaum, Narboux (omitting Schreck); the coq-geocoq-axioms.opam package metadata's authors field lists exactly Beeson, Braun, Boutry, Gries, Narboux, Schreck -- matching the artifact's six named credits verbatim. Both sources were checked; the opam file is the one that fully confirms the claim as written." . . . "GeoCoq lemma l7_13 corresponds to SST chapter 7 (midpoint / point reflection)" . "The capstone is SST 7.13 (GeoCoq l7_13): point reflection preserves congruence." . "GeoCoq's official documentation page confirms l7_13 is defined in the Ch07_midpoint module and concerns congruence preservation under point-reflection/midpoint symmetry, consistent with the artifact's claim that it corresponds to SST theorem 7.13. This is a spot-check of one specific chapter/lemma pairing, not a verification of every 'SST n.m' tag in the file (see NP-D)." . . . "Schwabhäuser, Szmielew, Tarski, \"Metamathematische Methoden in der Geometrie\", Springer-Verlag, Berlin, 1983" . "W. Schwabhäuser: completed and published SST (1983); the \"SST n.m\" tags cite all three authors." . "Title, three authors, publisher, and 1983 date confirmed via Springer Link and a Journal of Symbolic Logic review. Chapter-by-chapter content of the book was NOT opened or checked against the artifact's per-stage chapter tags (see NP-D, negative space) except for the single spot-check in d:cite-geocoq-l7_13 below." . . . . "Tarski & Givant, \"Tarski's System of Geometry\", Bulletin of Symbolic Logic, vol. 5, no. 2, pp. 175-214, 1999" . "A. Tarski (1926-27; Tarski & Givant, BSL 1999): the axiom system and the completeness/decidability metatheorems." . "Publication venue, volume, issue, and page range (175-214) confirmed as consistent across PhilPapers, Semantic Scholar, and Cambridge Core listings." . . . . "Build theorem-to-source concordance; check external historical/authorship claims against citable sources" . . . "Claude Sonnet 5 (Anthropic), running as Claude Code" . "Each statement here was checked against a specific, cited, dereferenceable external document during this session (via HTTP fetch and web search), not recalled from training data. Where a claim's underlying content could not be checked in full (e.g. every 'SST n.m' chapter tag), that limit is stated explicitly in d:verificationNote rather than extended by inference." . . . . . . . . "2026-08-10T12:57:30Z"^^ . . . "Tarski.lean: license, authorship, and historical-citation grounding (source-verified)" . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArujXziJVj9wv0856QcQukv3fw7UGog0oDe9ztQ79aozK0giP2f0DvLD1x87SX3o4W/NbRPI4UyMh8HF5NxKQzuo/sgXz96maOF2RyzJq6wa4PMUH7hVO5bB9KT8lmd9FVa9ZCi3aX47ScTAp3xdHwjCG8k+hNfBOMD9/8nxd70FHp55AwUurX4E/LlWKVTrJSPwtJoENaQz1uu5YPv0AdvBuMDcD7ZXMXE6CvO4yEvQamWctKDnwkb8s1L4e4jEWGurRiTSS/zi+Jff8R/c/TZA78JIxMhXJQp/HVOJRC7IJC9cujx/b3UFZbCHUqxWqvckiCxmP9GR9Z95McV780wIDAQAB" . "cQjcMTuBG6lzr3xucx4Xaq9ahrq64h700CRi9bgyn+2JmJ97tmSftMy9Vj4AjcbGrgECMLHwD9qdsZXzPThZLhtd5MIpGvcZ7ea9hVlPb2Qf5yYqmN99GKWjRFyL7zsRSlOsPLNxsCgP18aJhGbhEO+AkWrx7rJWHbYmS0ffiKZTT+Gu5G9z0HsrKrZUvlDTj/NVBhbr61Kjbi7gA5PuuWrbry7mSiLX+5RBBbx13uirDTGzsVMBtMqHSIocP8AS0VLjVaD2Ct+8Cb1NmxKyX1U5l7EuZkHJBgp/vFo4YG0/SWYJnDz7Ket4Fl/Bp/cABALsxfV/P0/MjxMj8WwtWQ==" . . .