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← Session 28 — ii′-5e: partial-fraction identity (zero series + F entire)

#1497 assistant 2026-08-23 15:26:11.056 UTC · 765→4010 tok open ⤢
thinking (11148 chars)
Errors: 1. **Line 158**: `analyticAt_id.div analyticAt_const (by norm_num)` gave `AnalyticAt ℂ (HDiv.hDiv s) 2`?? Hmm — the elaboration: `analyticAt_id.div analyticAt_const ...` : AnalyticAt.div (hf : AnalyticAt f x) (hg : AnalyticAt g x) (hg0 : g x ≠ 0) : AnalyticAt (f/g) x — with f = id, g = const: the result is `AnalyticAt ℂ (id / fun _ => ?) x`... The error shows `HDiv.hDiv s` — it seems `analyticAt_id` unified wrong: the goal `AnalyticAt ℂ (fun s => s / 2) s` and my term's type became `AnalyticAt ℂ (HDiv.hDiv s) 2` — meaning f got unified as... "HDiv.hDiv s" as a FUNCTION of s?? That means AnalyticAt.div with hf = analyticAt_id produced f / g where f = id: (id / g) applied... the reported type `AnalyticAt ℂ (HDiv.hDiv s) 2` is bizarre — it looks like f/g got evaluated as HDiv.hDiv s with the POINT 2 — i.e. unification treated `fun s => s / 2` as `HDiv.hDiv s 2` — no wait, the term's type IS `AnalyticAt ℂ (HDiv.hDiv s) 2`?? That would come from AnalyticAt.comp... Hmm — the error is in `(analyticAt_digamma h).comp h1`: comp expects (hg : AnalyticAt g (f x)) (hf : AnalyticAt f x): here hf := h1 must have type AnalyticAt ℂ f x with f x = the point where digamma is analytic: analyticAt_digamma h : AnalyticAt ℂ digamma (s/2)?? h : ∀ m, s/2 ≠ −↑m — so analyticAt_digamma h : AnalyticAt ℂ digamma (s / 2) — and comp wants hg : AnalyticAt ℂ g (f x): pattern f x = s/2 with x := s: f = fun s => s/2 ✓ and hf := h1 : AnalyticAt ℂ (fun s => s/2) s. But h1's actual type was elaborated as `AnalyticAt ℂ (HDiv.hDiv s) 2` — so my construction `analyticAt_id.div analyticAt_const (by norm_num)` produced garbage: AnalyticAt.div {f g} (hf) (hg) (hg0): with hf := analyticAt_id : AnalyticAt ℂ id ?x — x unknown; the DIVISION: f/g with f := id, g := const 2: AnalyticAt ℂ (id / fun _ => 2) ?x — with x free. Then h1 : AnalyticAt ℂ (id / fun _ => 2) ?x — when used in comp, unification forced ?x and the displayed form mangled. The issue: I never pinned x := s! `analyticAt_id.div analyticAt_const (by norm_num)` leaves the point as a metavariable, and `have h1 : AnalyticAt ℂ (fun s : ℂ => s / 2) s := ...` — wait I DID ascribe: `have h1 : AnalyticAt ℂ (fun s : ℂ => s / 2) s := analyticAt_id.div analyticAt_const (by norm_num)`. The ascription SHOULD drive unification: (fun s => s/2) =?= (id / fun _ => 2) as functions: id/const is Pi division: (id / fun _ => 2) s = id s / 2 = s/2 ✓ defeq — but exact-unification of LAMBDAS vs Pi-ops is where it breaks: `fun s => s/2` vs `id / fun _ => (2:ℂ)`: isDefEq should unify via eta + Pi.div_apply... The error shows it DIDN'T — it produced `AnalyticAt ℂ (HDiv.hDiv s) 2`. Weird elaboration. Fix: avoid Pi-division unification — construct via fun_prop? `by fun_prop : AnalyticAt ℂ (fun s : ℂ => s / 2) s`? fun_prop proves Differentiability not AnalyticAt... For AnalyticAt of explicit compositions there are fun_prop-marked AnalyticAt lemmas (AnalyticAt.deriv was @[fun_prop]!). Maybe `by fun_prop` works for AnalyticAt ℂ (fun s : ℂ => s/2) s: fun_prop with AnalyticAt? fun_prop targets Differentiable/Continuous mostly; AnalyticAt fun_prop support exists in this Mathlib? AnalyticAt.deriv has @[fun_prop] ✓ so fun_prop knows AnalyticAt goals! Try `by fun_prop`. Safer explicit alternative: ```lean have h1 : AnalyticAt ℂ (fun s : ℂ => s / 2) s := by apply AnalyticAt.div analyticAt_id analyticAt_const (by norm_num) ``` — `apply` unifies the conclusion AnalyticAt (fun x => f x / g x) s with the goal lambda ✓ then f/g become metavars solved by the args... apply AnalyticAt.div — the conclusion form: AnalyticAt 𝕜 (fun x => f x / g x) x?? Let me check the exact statement at Constructions.lean:1115. 2. **Line 160**: h3 type `AnalyticAt ℂ (digamma ∘ HDiv.hDiv s / fun x => 2) 2` — cascading garbage from h1. After fixing h1/h2 the div step: h2 : AnalyticAt ℂ (digamma ∘ (fun s => s/2)) s; h2.div analyticAt_const ... : AnalyticAt ℂ ((digamma ∘ ..) / fun _ => 2) s — goal: AnalyticAt ℂ (fun s => digamma (s/2)/2) s — Pi-division again. Use apply-style + a show bridge: ```lean lemma analyticAt_digamma_div_two {s : ℂ} (h : ∀ m : ℕ, s / 2 ≠ -(m : ℂ)) : AnalyticAt ℂ (fun s => Complex.digamma (s / 2) / 2) s := by have h1 : AnalyticAt ℂ (fun s : ℂ => s / 2) s := by apply AnalyticAt.div analyticAt_id analyticAt_const (by norm_num) have h2 := (analyticAt_digamma h).comp h1 have h3 := h2.div analyticAt_const (by norm_num : (2 : ℂ) ≠ 0) -- h3 : AnalyticAt ℂ ((digamma ∘ fun s => s/2) / fun _ => 2) s — convert convert h3 using 2 -- function-level congruence · ext... ``` Simplest robust: prove the function equality and rewrite: ```lean have heq : (fun s => Complex.digamma (s / 2) / 2) = fun s => (digamma ∘ (fun s : ℂ => s / 2)) s / 2 := by funext s; rfl rw [heq] exact h2.div analyticAt_const (by norm_num) ``` Hmm — the goal after rw [heq]: AnalyticAt ℂ (fun s => (digamma ∘ (s/2)) s / 2) s; h2.div analyticAt_const : AnalyticAt ℂ ((digamma ∘ f) / fun _ => 2) s — the lambda (fun s => g s / 2) vs Pi-div (g / fun _ => 2): defeq via Pi.div_apply — exact should accept?? The earlier failure suggests Pi-form defeq issues are real. Try `.div` then convert. Alternatively define differently: use AnalyticAt.div directly on the final goal: ```lean lemma analyticAt_digamma_div_two {s : ℂ} (h : ∀ m : ℕ, s / 2 ≠ -(m : ℂ)) : AnalyticAt ℂ (fun s => Complex.digamma (s / 2) / 2) s := by apply AnalyticAt.div _ analyticAt_const (by norm_num : (2:ℂ) ≠ 0) -- goal: AnalyticAt ℂ (fun s => Complex.digamma (s / 2)) s (f inferred) exact (analyticAt_digamma h).comp (by apply AnalyticAt.div analyticAt_id analyticAt_const (by norm_num)) ``` Hmm — apply AnalyticAt.div on goal `AnalyticAt ℂ (fun s => digamma (s/2)/2) s`: conclusion pattern `AnalyticAt 𝕜 (fun x => f x / g x) x`: unify fun s => digamma(s/2)/2 =?= fun x => f x / g x: f s = digamma(s/2), g s = 2: g := fun _ => 2 ✓ f := fun s => digamma (s/2) ✓ leaves goal AnalyticAt ℂ (fun s => digamma (s/2)) s. Then: (analyticAt_digamma h).comp h1 : AnalyticAt ℂ (digamma ∘ fun s => s/2) s — vs goal fun s => digamma (s/2): comp defeq (Function.comp_apply) ✓ exact should accept... same defeq risk. If problematic: `show AnalyticAt ℂ (Complex.digamma ∘ fun s : ℂ => s / 2) s` — defeq show ✓ then exact comp. 3. **Line 242**: `exact hZA e.symm` — wrong direction: e : zetaA s = (s−1)*ζ s; after rw [hz, mul_zero] at e: e : zetaA s = 0 ✓ so `exact hZA e` (no .symm!). I wrote e.symm by mistake. Fix: `exact hZA e`. 4. **Line 252**: `rw [logDeriv_apply, ((hasDerivAt_id s).sub_const (1:ℂ)).deriv]` — the .deriv rewrite pattern is `deriv (fun x => id x − 1) s` vs target `deriv (fun w => w − 1) s` — (hasDerivAt_id s).sub_const produces HasDerivAt (fun x => id x − 1) — the id-wrapped form ≠ fun w => w − 1 syntactically. Fix: use `hasDerivAt_id'`? In recent Mathlib: `hasDerivAt_id' (x) : HasDerivAt id (1) x`? still id. There's `hasDerivAt_id''`? Hmm. Alternative: deriv via fun_prop... The simplest: `deriv (fun w : ℂ => w − 1) s = 1`: `by simp` — simp knows deriv of (fun w => w − c)? `deriv_sub_const : deriv (fun x => x - c) x = 1`? Hmm actually I recall `deriv_sub_const : deriv (fun x ↦ x - c) x = 1` might not exist; there's `deriv_id''`, `deriv_const_sub`... Let me instead compute logDeriv (fun w => w − 1) s differently — via the composition form like LiSides' e2 for powers. LiSides e2 did: fun z => (z−ρ)^m = (fun x => x^m) ∘ (fun z => z−ρ) with logDeriv_comp + logDeriv_pow. For m = 1 analog: logDeriv (fun w => w−1) s: write as id − const... There IS `logDeriv_id_sub_const`? unlikely. Direct: logDeriv f s = deriv f s / f s; deriv (fun w => w − 1) s: HasDerivAt: `HasDerivAt.sub_const (hasDerivAt_id' s) 1`? — the id issue: hasDerivAt_id' gives `HasDerivAt id 1 s`; I need the function fun w => w − 1: id − 1 pointwise = w − 1 ✓ defeq — the rewrite failed because rw needs syntactic match. Use `show`: ```lean have e2 : logDeriv (fun w : ℂ => w - 1) s = 1 / (s - 1) := by have hd : deriv (fun w : ℂ => w - 1) s = 1 := by rw [show (fun w : ℂ => w - 1) = id - 1 from rfl] -- id − 1 as Pi? (id − fun _ => 1)... ... ``` Cleaner: `(differentiableAt_id.sub (differentiableAt_const (1:ℂ))).deriv`?? DifferentiableAt.deriv gives deriv (f−g) s = deriv f s − deriv g s — no, .deriv on DifferentiableAt gives HasDerivAt...no: DifferentiableAt.deriv : deriv f s = f'?? no — DifferentiableAt.deriv (h) (hg : HasDerivAt...)... The right tool: `HasDerivAt.deriv : HasDerivAt f f' x → deriv f x = f'`. Need HasDerivAt (fun w => w−1) 1 s: `(hasDerivAt_id' s).sub_const 1`? hasDerivAt_id' (x) : HasDerivAt id 1 x — then .sub_const gives HasDerivAt (fun x => id x − 1) 1 s — the id x form again. Convert: HasDerivAt.congr... `HasDerivAt.congr_of_eventuallyEq`? or: `show HasDerivAt (fun w : ℂ => w - 1) 1 s`: defeq to HasDerivAt (fun x => id x − 1) 1 s?? id x vs x: id x unfolds to x definitionally ✓ fun x => id x − 1 ≡ fun w => w − 1 defeq ✓ — so `show HasDerivAt (fun w:ℂ => w − 1) 1 s; exact (hasDerivAt_id' s).sub_const 1`... hmm wait — the earlier failure was rw-pattern matching; with exact the defeq check handles id x ≡ x ✓. So: ```lean have e2 : logDeriv (fun w : ℂ => w - 1) s = 1 / (s - 1) := by have hd : deriv (fun w : ℂ => w - 1) s = 1 := ((hasDerivAt_id' s).sub_const (1 : ℂ)).deriv rw [logDeriv_apply, hd] ``` The term ((hasDerivAt_id' s).sub_const 1).deriv : deriv (fun x => id x − 1) s = 1 — ascribed to deriv (fun w => w−1) s = 1 via the `have hd : ... :=` ascription defeq ✓. Then rw [logDeriv_apply, hd]: goal 1/(s−1) = 1/(s−1) closed by rw's rfl ✓. Check hasDerivAt_id' exists in this Mathlib: `hasDerivAt_id'` vs `hasDerivAt_id` — one of them: `hasDerivAt_id (x) : HasDerivAt id 1 x`? Both may exist (hasDerivAt_id and hasDerivAt_id'). I'll use hasDerivAt_id (LiReflect or others may have used it — grep quickly). Actually `hasDerivAt_id` appears in Mathlib as `theorem hasDerivAt_id (x : 𝕜) : HasDerivAt id 1 x`. Fine. 5. Warning 105: intro pattern — `intro y hy m; intro hye` → combine: `intro y hy m hye` (cosmetic; fix). 6. Warning 196: unused hζ binder in... line 196 — in logDeriv_zeta_sub_mult_div_eventually: `(hζ : riemannZeta ρ₀ = 0)` — hζ unused! Indeed the NF destructure doesn't need ζ ρ₀ = 0 (analyticOrderAt_ne_top.mp works regardless; the order could be 0 if ζ ρ₀ ≠ 0). Hmm — actually if ζ ρ₀ ≠ 0 then analyticOrderNatAt = 0 and the statement is trivially fine too. But for honesty the hypothesis hζ is used... it's NOT used in the proof. Keep the hypothesis (the application sites have it) and rename `_hζ`. Wait — the warning says variable hζ not referenced — in the PROOF. Rename to _hζ? But it's a named hypothesis in the lemma signature — underscore prefix silences ✓. Actually — hold on, is hζ truly unneeded? analyticOrderAt_ne_top.mp (zeta_order_ne_top_of_ne hρ1) gives the NF with exponent analyticOrderNatAt — if ζ ρ₀ ≠ 0, exponent 0, and the "witness" statement still holds. Fine — keep _hζ for API clarity (callers have ζ ρ₀ = 0). Also fix the §3 hmz rfl — check: `have hmz : (zeroMult ρ₀ : ℂ) = (analyticOrderNatAt riemannZeta ρ₀ : ℂ) := rfl` — from LiSides line 401 ✓ worked there. Let me apply fixes.
Fixing the batch: Pi-division unification (use `apply`-driven forms), the `e.symm` direction, the deriv-of-(w−1) bridge, and the two warnings.
tool: Edit
input
{
  "file_path": "D:\\Python\\Quantum\\research\\lean\\NguyenRH1\\NguyenRH1\\LiFEntire.lean",
  "old_string": "  have hball : \u2200 y \u2208 Metric.ball w \u03b4, \u2200 m : \u2115, y \u2260 -(m : \u2102) := by\n    intro y hy m\n    intro hye",
  "new_string": "  have hball : \u2200 y \u2208 Metric.ball w \u03b4, \u2200 m : \u2115, y \u2260 -(m : \u2102) := by\n    intro y hy m hye"
}
raw content_json (database row)
[{"type":"thinking","thinking":"Errors:\n\n1. **Line 158**: `analyticAt_id.div analyticAt_const (by norm_num)` gave `AnalyticAt ℂ (HDiv.hDiv s) 2`?? Hmm — the elaboration: `analyticAt_id.div analyticAt_const ...` : AnalyticAt.div (hf : AnalyticAt f x) (hg : AnalyticAt g x) (hg0 : g x ≠ 0) : AnalyticAt (f/g) x — with f = id, g = const: the result is `AnalyticAt ℂ (id / fun _ => ?) x`... The error shows `HDiv.hDiv s` — it seems `analyticAt_id` unified wrong: the goal `AnalyticAt ℂ (fun s => s / 2) s` and my term's type became `AnalyticAt ℂ (HDiv.hDiv s) 2` — meaning f got unified as... \"HDiv.hDiv s\" as a FUNCTION of s?? That means AnalyticAt.div with hf = analyticAt_id produced f / g where f = id: (id / g) applied... the reported type `AnalyticAt ℂ (HDiv.hDiv s) 2` is bizarre — it looks like f/g got evaluated as HDiv.hDiv s with the POINT 2 — i.e. unification treated `fun s => s / 2` as `HDiv.hDiv s 2` — no wait, the term's type IS `AnalyticAt ℂ (HDiv.hDiv s) 2`?? That would come from AnalyticAt.comp... Hmm — the error is in `(analyticAt_digamma h).comp h1`: comp expects (hg : AnalyticAt g (f x)) (hf : AnalyticAt f x): here hf := h1 must have type AnalyticAt ℂ f x with f x = the point where digamma is analytic: analyticAt_digamma h : AnalyticAt ℂ digamma (s/2)?? h : ∀ m, s/2 ≠ −↑m — so analyticAt_digamma h : AnalyticAt ℂ digamma (s / 2) — and comp wants hg : AnalyticAt ℂ g (f x): pattern f x = s/2 with x := s: f = fun s => s/2 ✓ and hf := h1 : AnalyticAt ℂ (fun s => s/2) s. But h1's actual type was elaborated as `AnalyticAt ℂ (HDiv.hDiv s) 2` — so my construction `analyticAt_id.div analyticAt_const (by norm_num)` produced garbage: AnalyticAt.div {f g} (hf) (hg) (hg0): with hf := analyticAt_id : AnalyticAt ℂ id ?x — x unknown; the DIVISION: f/g with f := id, g := const 2: AnalyticAt ℂ (id / fun _ => 2) ?x — with x free. Then h1 : AnalyticAt ℂ (id / fun _ => 2) ?x — when used in comp, unification forced ?x and the displayed form mangled. The issue: I never pinned x := s! `analyticAt_id.div analyticAt_const (by norm_num)` leaves the point as a metavariable, and `have h1 : AnalyticAt ℂ (fun s : ℂ => s / 2) s := ...` — wait I DID ascribe: `have h1 : AnalyticAt ℂ (fun s : ℂ => s / 2) s := analyticAt_id.div analyticAt_const (by norm_num)`. The ascription SHOULD drive unification: (fun s => s/2) =?= (id / fun _ => 2) as functions: id/const is Pi division: (id / fun _ => 2) s = id s / 2 = s/2 ✓ defeq — but exact-unification of LAMBDAS vs Pi-ops is where it breaks: `fun s => s/2` vs `id / fun _ => (2:ℂ)`: isDefEq should unify via eta + Pi.div_apply... The error shows it DIDN'T — it produced `AnalyticAt ℂ (HDiv.hDiv s) 2`. Weird elaboration. Fix: avoid Pi-division unification — construct via fun_prop? `by fun_prop : AnalyticAt ℂ (fun s : ℂ => s / 2) s`? fun_prop proves Differentiability not AnalyticAt... For AnalyticAt of explicit compositions there are fun_prop-marked AnalyticAt lemmas (AnalyticAt.deriv was @[fun_prop]!). Maybe `by fun_prop` works for AnalyticAt ℂ (fun s : ℂ => s/2) s: fun_prop with AnalyticAt? fun_prop targets Differentiable/Continuous mostly; AnalyticAt fun_prop support exists in this Mathlib? AnalyticAt.deriv has @[fun_prop] ✓ so fun_prop knows AnalyticAt goals! Try `by fun_prop`. Safer explicit alternative:\n```lean\n  have h1 : AnalyticAt ℂ (fun s : ℂ => s / 2) s := by\n    apply AnalyticAt.div analyticAt_id analyticAt_const (by norm_num)\n```\n— `apply` unifies the conclusion AnalyticAt (fun x => f x / g x) s with the goal lambda ✓ then f/g become metavars solved by the args... apply AnalyticAt.div — the conclusion form: AnalyticAt 𝕜 (fun x => f x / g x) x?? Let me check the exact statement at Constructions.lean:1115.\n\n2. **Line 160**: h3 type `AnalyticAt ℂ (digamma ∘ HDiv.hDiv s / fun x => 2) 2` — cascading garbage from h1. After fixing h1/h2 the div step: h2 : AnalyticAt ℂ (digamma ∘ (fun s => s/2)) s; h2.div analyticAt_const ... : AnalyticAt ℂ ((digamma ∘ ..) / fun _ => 2) s — goal: AnalyticAt ℂ (fun s => digamma (s/2)/2) s — Pi-division again. Use apply-style + a show bridge:\n```lean\nlemma analyticAt_digamma_div_two {s : ℂ} (h : ∀ m : ℕ, s / 2 ≠ -(m : ℂ)) :\n    AnalyticAt ℂ (fun s => Complex.digamma (s / 2) / 2) s := by\n  have h1 : AnalyticAt ℂ (fun s : ℂ => s / 2) s := by\n    apply AnalyticAt.div analyticAt_id analyticAt_const (by norm_num)\n  have h2 := (analyticAt_digamma h).comp h1\n  have h3 := h2.div analyticAt_const (by norm_num : (2 : ℂ) ≠ 0)\n  -- h3 : AnalyticAt ℂ ((digamma ∘ fun s => s/2) / fun _ => 2) s — convert\n  convert h3 using 2  -- function-level congruence\n  · ext... \n```\nSimplest robust: prove the function equality and rewrite:\n```lean\n  have heq : (fun s => Complex.digamma (s / 2) / 2)\n      = fun s => (digamma ∘ (fun s : ℂ => s / 2)) s / 2 := by funext s; rfl\n  rw [heq]\n  exact h2.div analyticAt_const (by norm_num)\n```\nHmm — the goal after rw [heq]: AnalyticAt ℂ (fun s => (digamma ∘ (s/2)) s / 2) s; h2.div analyticAt_const : AnalyticAt ℂ ((digamma ∘ f) / fun _ => 2) s — the lambda (fun s => g s / 2) vs Pi-div (g / fun _ => 2): defeq via Pi.div_apply — exact should accept?? The earlier failure suggests Pi-form defeq issues are real. Try `.div` then convert. Alternatively define differently: use AnalyticAt.div directly on the final goal:\n```lean\nlemma analyticAt_digamma_div_two {s : ℂ} (h : ∀ m : ℕ, s / 2 ≠ -(m : ℂ)) :\n    AnalyticAt ℂ (fun s => Complex.digamma (s / 2) / 2) s := by\n  apply AnalyticAt.div _ analyticAt_const (by norm_num : (2:ℂ) ≠ 0)\n  -- goal: AnalyticAt ℂ (fun s => Complex.digamma (s / 2)) s  (f inferred)\n  exact (analyticAt_digamma h).comp (by apply AnalyticAt.div analyticAt_id analyticAt_const (by norm_num))\n```\nHmm — apply AnalyticAt.div on goal `AnalyticAt ℂ (fun s => digamma (s/2)/2) s`: conclusion pattern `AnalyticAt 𝕜 (fun x => f x / g x) x`: unify fun s => digamma(s/2)/2 =?= fun x => f x / g x: f s = digamma(s/2), g s = 2: g := fun _ => 2 ✓ f := fun s => digamma (s/2) ✓ leaves goal AnalyticAt ℂ (fun s => digamma (s/2)) s. Then: (analyticAt_digamma h).comp h1 : AnalyticAt ℂ (digamma ∘ fun s => s/2) s — vs goal fun s => digamma (s/2): comp defeq (Function.comp_apply) ✓ exact should accept... same defeq risk. If problematic: `show AnalyticAt ℂ (Complex.digamma ∘ fun s : ℂ => s / 2) s` — defeq show ✓ then exact comp.\n\n3. **Line 242**: `exact hZA e.symm` — wrong direction: e : zetaA s = (s−1)*ζ s; after rw [hz, mul_zero] at e: e : zetaA s = 0 ✓ so `exact hZA e` (no .symm!). I wrote e.symm by mistake. Fix: `exact hZA e`.\n\n4. **Line 252**: `rw [logDeriv_apply, ((hasDerivAt_id s).sub_const (1:ℂ)).deriv]` — the .deriv rewrite pattern is `deriv (fun x => id x − 1) s` vs target `deriv (fun w => w − 1) s` — (hasDerivAt_id s).sub_const produces HasDerivAt (fun x => id x − 1) — the id-wrapped form ≠ fun w => w − 1 syntactically. Fix: use `hasDerivAt_id'`? In recent Mathlib: `hasDerivAt_id' (x) : HasDerivAt id (1) x`? still id. There's `hasDerivAt_id''`? Hmm. Alternative: deriv via fun_prop... The simplest: `deriv (fun w : ℂ => w − 1) s = 1`: `by simp` — simp knows deriv of (fun w => w − c)? `deriv_sub_const : deriv (fun x => x - c) x = 1`? Hmm actually I recall `deriv_sub_const : deriv (fun x ↦ x - c) x = 1` might not exist; there's `deriv_id''`, `deriv_const_sub`... Let me instead compute logDeriv (fun w => w − 1) s differently — via the composition form like LiSides' e2 for powers. LiSides e2 did: fun z => (z−ρ)^m = (fun x => x^m) ∘ (fun z => z−ρ) with logDeriv_comp + logDeriv_pow. For m = 1 analog: logDeriv (fun w => w−1) s: write as id − const... There IS `logDeriv_id_sub_const`? unlikely. Direct: logDeriv f s = deriv f s / f s; deriv (fun w => w − 1) s: HasDerivAt: `HasDerivAt.sub_const (hasDerivAt_id' s) 1`? — the id issue: hasDerivAt_id' gives `HasDerivAt id 1 s`; I need the function fun w => w − 1: id − 1 pointwise = w − 1 ✓ defeq — the rewrite failed because rw needs syntactic match. Use `show`:\n```lean\n    have e2 : logDeriv (fun w : ℂ => w - 1) s = 1 / (s - 1) := by\n      have hd : deriv (fun w : ℂ => w - 1) s = 1 := by\n        rw [show (fun w : ℂ => w - 1) = id - 1 from rfl]  -- id − 1 as Pi? (id − fun _ => 1)...\n        ...\n```\nCleaner: `(differentiableAt_id.sub (differentiableAt_const (1:ℂ))).deriv`?? DifferentiableAt.deriv gives deriv (f−g) s = deriv f s − deriv g s — no, .deriv on DifferentiableAt gives HasDerivAt...no: DifferentiableAt.deriv : deriv f s = f'?? no — DifferentiableAt.deriv (h) (hg : HasDerivAt...)... The right tool: `HasDerivAt.deriv : HasDerivAt f f' x → deriv f x = f'`. Need HasDerivAt (fun w => w−1) 1 s: `(hasDerivAt_id' s).sub_const 1`? hasDerivAt_id' (x) : HasDerivAt id 1 x — then .sub_const gives HasDerivAt (fun x => id x − 1) 1 s — the id x form again. Convert: HasDerivAt.congr... `HasDerivAt.congr_of_eventuallyEq`? or: `show HasDerivAt (fun w : ℂ => w - 1) 1 s`: defeq to HasDerivAt (fun x => id x − 1) 1 s?? id x vs x: id x unfolds to x definitionally ✓ fun x => id x − 1 ≡ fun w => w − 1 defeq ✓ — so `show HasDerivAt (fun w:ℂ => w − 1) 1 s; exact (hasDerivAt_id' s).sub_const 1`... hmm wait — the earlier failure was rw-pattern matching; with exact the defeq check handles id x ≡ x ✓. So:\n```lean\n    have e2 : logDeriv (fun w : ℂ => w - 1) s = 1 / (s - 1) := by\n      have hd : deriv (fun w : ℂ => w - 1) s = 1 :=\n        ((hasDerivAt_id' s).sub_const (1 : ℂ)).deriv\n      rw [logDeriv_apply, hd]\n```\nThe term ((hasDerivAt_id' s).sub_const 1).deriv : deriv (fun x => id x − 1) s = 1 — ascribed to deriv (fun w => w−1) s = 1 via the `have hd : ... :=` ascription defeq ✓. Then rw [logDeriv_apply, hd]: goal 1/(s−1) = 1/(s−1) closed by rw's rfl ✓.\n\nCheck hasDerivAt_id' exists in this Mathlib: `hasDerivAt_id'` vs `hasDerivAt_id` — one of them: `hasDerivAt_id (x) : HasDerivAt id 1 x`? Both may exist (hasDerivAt_id and hasDerivAt_id'). I'll use hasDerivAt_id (LiReflect or others may have used it — grep quickly). Actually `hasDerivAt_id` appears in Mathlib as `theorem hasDerivAt_id (x : 𝕜) : HasDerivAt id 1 x`. Fine.\n\n5. Warning 105: intro pattern — `intro y hy m; intro hye` → combine: `intro y hy m hye` (cosmetic; fix).\n\n6. Warning 196: unused hζ binder in... line 196 — in logDeriv_zeta_sub_mult_div_eventually: `(hζ : riemannZeta ρ₀ = 0)` — hζ unused! Indeed the NF destructure doesn't need ζ ρ₀ = 0 (analyticOrderAt_ne_top.mp works regardless; the order could be 0 if ζ ρ₀ ≠ 0). Hmm — actually if ζ ρ₀ ≠ 0 then analyticOrderNatAt = 0 and the statement is trivially fine too. But for honesty the hypothesis hζ is used... it's NOT used in the proof. Keep the hypothesis (the application sites have it) and rename `_hζ`. Wait — the warning says variable hζ not referenced — in the PROOF. Rename to _hζ? But it's a named hypothesis in the lemma signature — underscore prefix silences ✓. Actually — hold on, is hζ truly unneeded? analyticOrderAt_ne_top.mp (zeta_order_ne_top_of_ne hρ1) gives the NF with exponent analyticOrderNatAt — if ζ ρ₀ ≠ 0, exponent 0, and the \"witness\" statement still holds. Fine — keep _hζ for API clarity (callers have ζ ρ₀ = 0).\n\nAlso fix the §3 hmz rfl — check: `have hmz : (zeroMult ρ₀ : ℂ) = (analyticOrderNatAt riemannZeta ρ₀ : ℂ) := rfl` — from LiSides line 401 ✓ worked there.\n\nLet me apply fixes.","signature":""},{"type":"text","text":"Fixing the batch: Pi-division unification (use `apply`-driven forms), the `e.symm` direction, the deriv-of-(w−1) bridge, and the two warnings."},{"type":"tool_use","id":"Edit_124","name":"Edit","input":{"file_path":"D:\\Python\\Quantum\\research\\lean\\NguyenRH1\\NguyenRH1\\LiFEntire.lean","old_string":"  have hball : ∀ y ∈ Metric.ball w δ, ∀ m : ℕ, y ≠ -(m : ℂ) := by\n    intro y hy m\n    intro hye","new_string":"  have hball : ∀ y ∈ Metric.ball w δ, ∀ m : ℕ, y ≠ -(m : ℂ) := by\n    intro y hy m hye"},"extra_content":null}]