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Remove dead exp-ball witness: hbxy/jxy were defined but never used (hkey only needs hbx, hby via padicLog_mul), so N := max (max jx jy) jxy collapses to max jx jy. Golf the ‖x*y-1‖<1 ultrametric bound, inline hpN, drop redundant 'from', strip narrative comments. Statement byte-for-byte unchanged; #print axioms unchanged (propext, Classical.choice, Quot.sound). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
CBirkbeck
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Remove dead exp-ball witness: hbxy/jxy were defined but never used (hkey only needs hbx, hby via padicLog_mul), so N := max (max jx jy) jxy collapses to max jx jy. Golf the ‖x*y-1‖<1 ultrametric bound, inline hpN, drop redundant 'from', strip narrative comments. Statement byte-for-byte unchanged; #print axioms unchanged (propext, Classical.choice, Quot.sound). Co-authored-by: Chris Birkbeck <cd.birkbeck@gmail.com> Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Jun 24, 2026
…fLeadingTermCongruence.lean — simpa best-API trim (#4749) Full /cleanup (statement-preserving; no EXISTING statement token changed — only one proof-internal simpa line differs; every signature token-identical; no instance binders removed; no new helpers). sorryAx STEP-0 GATE PASSED: all 7 decls in BernoulliRegular.Furtwaengler [propext, Classical.choice, Quot.sound] — not OSKR-tainted (upstream ArtinHasse/Dwork infrastructure). (1) Best-mathlib-API / simp-set trim (×1): L145 in pow_sub_pow_mem_pow_succ_of_sub_mem_sq — simpa [pow_add, Nat.add_assoc, Nat.add_comm, Nat.add_left_comm] using hmul → simpa [Ideal.IsTwoSided.pow_add] using hmul (drops 3 redundant Nat.add_* normalization lemmas + switches to the ideal-specific Ideal.IsTwoSided.pow_add, matching the existing in-file convention 5 lines below at L150). PROBED+REVERTED (load-bearing, correctly kept): 3× simp → simp only (the convert…using 1; simp[…]; ring blocks in the three *_lt_ell_leading theorems — bare simp normalizes Nat.succ/Nat.factorial forms ring depends on; simp only left an unclosable goal); the change … ∈ I^((n+1)+1) on L149 (without it simpa [Ideal.IsTwoSided.pow_add] over-applies pow_add to both sides → I^n*I*I vs I^(n+1)*I^1 mismatch). NOT touched (correctly KEPT — used here): universe u v w (Type u/v/w used — contrast sibling #4479 where it was dead); open scoped NumberField (𝓞 used — contrast #4479); public imports (re-exported interface); the repeated 5-line instance-binder block (a variable-collapse would risk binder reorder/non-token-identical signatures + theorem #4 is a generic lemma not using them). +1/−1. decl-count unchanged (7); module green by name (3578 jobs); axioms on touched decl pow_sub_pow_mem_pow_succ_of_sub_mem_sq [propext, Classical.choice, Quot.sound]; zero new sorry; no statement token-changed; no residue (probe stripped, tail intact end Furtwaengler/end BernoulliRegular/end). Co-authored-by: Chris Birkbeck <cd.birkbeck@gmail.com> Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
CBirkbeck
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Jul 8, 2026
…mathlib-verified, PR drafts staged) Ranked upstream candidates, each verified vs current mathlib (searched): #1 Functor.map_zpow' (sibling of existing Functor.map_inv', target Grp.lean) — strongest clean gap-fill; #2 AdjoinRoot.isDomain_of_monic_of_map (shortens the CoordinateRing domain instance in EllipticCurve/Affine/Point.lean); #3 IdealSheafData.comap_mul/comapMonoidHom/comap_prod (completes comap API alongside comap_mono/comap_top); #4 exists_factor_comap_iff. #5 OverPullbackMul + #7 P3b3 bridge = owner-input; #6 D2 homological suite = dedicated verify-pass. No external PRs opened (owner action). Interruptible; 0h preempts. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Jul 8, 2026
…ates #1-#4 CHARTER-A item 6 (standby tail). Mathlib-ready extracts staged in .mathlib-quality/pr-drafts/ so the owner can submit with zero re-derivation. DRAFTS ONLY — external submission is an owner action; each file opens with a PR-metadata block (target file, placement, shortening opportunity) to strip before submission. #1 Functor.map_zpow' -> Monoidal/Cartesian/Grp.lean #2 AdjoinRoot.isDomain_of_monic_of_map (+3) -> RingTheory/AdjoinRoot.lean (+Poly,+HomogLoc) #3 IdealSheafData.comap_mul/comapMonoidHom/comap_prod -> IdealSheaf/Functorial.lean #4 IdealSheafData.exists_factor_comap_iff -> IdealSheaf/Functorial.lean + README.md index (submission order, verification pointer to upstream-ledger.md). All four verified axiom-clean in-project; under .mathlib-quality/ (no build impact, dev-branch only). Sentinel: item 6 done; faith-infra remains next-session first act. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
CBirkbeck
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Jul 8, 2026
….md, sentinel cleared Dispatchable charter work this session (item 6, standby tail) is DONE: PR-drafts #1-#4 staged (commit 98c3999). Everything remaining is gated: - faith-infra (item 1): owner-bound to NEXT session, full budget, first act (atomic def-level-irreducible refactor; local attrs proven insufficient in session 2 — must not land partial). - 0h / mulModelHom_vc (item 4): blocked on c5β's 0c-ii (mulModelHom still sorry at GroupLawConstruction.lean:806 — c5β's file, untouched). - items 2/3/5: downstream of faith-infra. Charter arc preserved in CHARTER-A.md (durable; also on board v10.32) so next session resumes with fresh full context. Session sentinel cleared per PHASE-8 terminal. Not an owner-milestone (reporting contract) — board-level close. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
CBirkbeck
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Jul 14, 2026
…(rigidity side complete, all levels); G0 Y0(N) assembled + [ELLQUOT-GEOM] ruled (box) + re-tasked to E[N] finiteness; OMEGA T-E14 = single remaining structural gate (coordinator) Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Remove dead exp-ball witness: hbxy/jxy were defined but never used (hkey only needs hbx, hby via padicLog_mul), so N := max (max jx jy) jxy collapses to max jx jy. Golf the ‖x*y-1‖<1 ultrametric bound, inline hpN, drop redundant 'from', strip narrative comments.
Statement byte-for-byte unchanged; #print axioms unchanged (propext, Classical.choice, Quot.sound).
Co-Authored-By: Claude Opus 4.8 (1M context) noreply@anthropic.com