Research notes on every problem, and a library of the papers behind them. Built from the open erdos repository.
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Reviews and grade of the Problem 1219 reconstructions
corollary_1_3_reconstruction_review: Independent refutation-charged review of the Corollary 1.3 reconstruction as of 2026-09-28T05:03:27Z: source fidelity faithful and the argument sound, with zero required corrections, two suggested corrections and one note.
grade: Distinct grader's record for the three focused reviews of the Lemma 1.1, Theorem 1.2 and Corollary 1.3 reconstruction pages as of 2026-09-28T05:03:27Z: all three reports pass, four corrections are accepted, the three pages are graded faithful and sound, and no tier is assigned.
lemma_1_1_reconstruction_review: Independent refutation-charged review of the Canonization Lemma 1.1 reconstruction as of 2026-09-28T05:03:27Z: source fidelity faithful with corrections, none required and four suggested, and the argument sound, with clause (3) sound under the reading the page states.
theorem_1_2_reconstruction_review: Fresh-context refutation review of the Theorem 1.2 reconstruction as of 2026-09-28T05:03:27Z: source fidelity faithful with corrections, the reconstructed argument sound; one required correction, an unrecorded reading in Step 4.
The records here are the independent focused reviews of each reconstruction page of the folder as of 2026-09-28T05:03:27Z, one for the Lemma 1.1 page (review), one for the Theorem 1.2 page (review) and one for the Corollary 1.3 page (review), each by a reviewer in a fresh context under a refutation charge against the held scan of Shelah (1975), and one distinct grade by a grader distinct from the author and from the three reviewers. All three reports pass; the grade accepts four corrections (C1 to the lemma page, C2 to C4 to the theorem page) and records the three pages as faithful to the source and sound. These are focused reviews: they assign no tier, change no status, and leave the pages author-recorded.