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← Session 29 — ii′-5e-v: circle bound (far-tail + series bounds)

#1602 assistant 2026-08-23 22:42:57.520 UTC · 1039→2479 tok open ⤢
thinking (5817 chars)
Four errors: 1. **Line 1200 (hsum_img)**: `Finset.sum_image` direction: it gives `∑ x ∈ s.image f, g x = ∑ x ∈ s, g (f x)`. Our goal: `∑ ρ ∈ FS, ↑(zeroMult ↑ρ) = ∑ z ∈ FS.image Subtype.val, ↑(zeroMult z)` — i.e., we need the .symm direction with g := fun z => (zeroMult z : ℝ). The RHS `∑ z ∈ image, g z` where g z = ↑(zeroMult z) — and g (Subtype.val ρ) = ↑(zeroMult ↑ρ) ✓ matches LHS. So `hsum_img := (Finset.sum_image (fun x _ y _ h => Subtype.val_injective h)).symm`. 2. **Line 1247 (h2)**: `abs_neg M : |-M| = |M|` — expected |-M| = M. Fix: `abs_of_nonneg` after: `by rw [abs_neg, abs_of_nonneg (by linarith [hM1'] : (0:ℝ) ≤ M)]`. So h2 : |-M| = M := by rw [abs_neg]; exact abs_of_nonneg (by linarith [hM1']). 3. **Line 1256 (h6)**: `|b| ≤ max |a| |(|b|)|` — the goal has `|(|b|)|` (abs of abs) because I did `rw [← h5]` where h5 : |b| = b — that rewrote b to |b| everywhere including inside the existing |b|. Goal was `(b:ℝ) ≤ max |a| |b|`; rw [← h5] turned it into `|b| ≤ max |a| |(|b|)|`. Bad. Instead: `have h6 : (b:ℝ) ≤ max |a| |b| := le_trans (le_abs_self b) (le_max_right _ _)`. Clean. 4. **Line 1401**: `rw [h1]` then `field_simp; ring` — the "No goals" — h1's proof: `field_simp; ring` — field_simp closed it, ring errored "No goals". Wait — error at 1401:6 "No goals to be solved" — that's the `ring` after `field_simp` succeeded. Remove the ring? But which line is 1401... it's h1 in hbound: `field_simp; ring`. If field_simp closes, drop ring. But it might be fragile — replace with just `ring`? The identity: 17*R/6*(16*A0count*log(2R−1)/(2R−1)) = (17/6)*16*A0count*(R/(2R−1))*log(2R−1). With divisions — field_simp then ring is the standard pattern; if field_simp closed it alone, great — but "No goals" error means field_simp DID close and ring failed. So remove `ring`. But careful: maybe field_simp left no goals because it solved it via rfl-match. Remove ring. Actually wait — error 1401 might be the `ring` in the calc step `_ = (272/3) * ... := by ring`? No — that would be needed. Line numbers: 1401 in hbound... h1's field_simp;ring is around there. Let me just fix: `:= by field_simp` — but if field_simp leaves a goal, error. Safer: `:= by rw [mul_div_assoc]; ring`? Hmm the forms: LHS 17*R/6*(16*A0*L/(2R−1)) — treat 17*R/6 as (17/6)*R: LHS = (17/6)*R*16*A0*L/(2R−1); RHS = (17/6)*16*A0*(R/(2R−1))*L = (17/6)*16*A0*R*L/(2R−1). Same by ring_nf handling division? `ring` handles division in fields: goal is an identity in the field ℝ with div — `ring` should close it directly (ring normalizes rat funcs). Just use `by ring`. Hmm — but ring with Real.log(2R−1) as an atom and (2R−1) as an atom: the identity is rational in the atoms {R, A0count, Real.log (2*R−1), (2*R−1)...} — but (2*R−1) appears both as atom (inside log) and as algebraic expression 2R−1 (in the divisor). ring treats Real.log(2*R−1) as an opaque atom whose argument is normalized to 2*R−1 ✓ and the divisor 2*R−1 normalizes to the same ✓. So `ring` alone should work. Use `:= by ring`. 5. **Line 1406 (h2's first apply)**: `apply mul_le_mul_of_nonneg_left _ hA0` — the goal at that point: after `apply mul_le_mul`, first goal is `17/6*16*A0count*(R/(2R−1)) ≤ 17/6*16*A0count*1` — my apply chain tried to peel factors one at a time but mul_le_mul_of_nonneg_left only strips ONE left factor A0count, leaving `17/6*16*(R/(2R−1)) ≤ 17/6*16*1` mismatch — the apply failed because the goal has THREE left factors before A0count? Wait goal: `17 / 6 * 16 * A0count * (R / (2 * R - 1)) ≤ 17 / 6 * 16 * A0count * 1`. mul_le_mul_of_nonneg_left (h : b ≤ a) (hc : 0 ≤ c) : c*b ≤ c*a. Unify c*? = 17/6*16*A0count*(R/(2R−1)): with b := R/(2R−1), a := 1: c must be 17/6*16*A0count — the apply `mul_le_mul_of_nonneg_left _ hA0` forces c := A0count (from hA0 : 0 ≤ A0count) — mismatch since the head constant is 17/6*16*A0count. Fix: `apply mul_le_mul_of_nonneg_left hR21 (by positivity : (0:ℝ) ≤ 17/6*16*A0count)` — one step: hR21 : R/(2R−1) ≤ 1 ✓ c := 17/6*16*A0count, positivity should handle A0count? NO — banked gotcha: positivity can't see through Classical.choose defs (A0count). Use explicit: mul_nonneg (mul_nonneg (by norm_num) (by norm_num)) hA0... (0 ≤ 17/6*16*A0count): = mul_nonneg (by norm_num : (0:ℝ) ≤ 17/6*16) hA0. So: ``` · exact mul_le_mul_of_nonneg_left hR21 (mul_nonneg (by norm_num : (0:ℝ) ≤ 17/6*16) hA0) ``` ✓. Also check the mul_le_mul's other args in h2: mul_le_mul (hab : a≤b) (hcd : c≤d) (hc : 0≤c) (hb : 0≤b) : a*c ≤ b*d with a := 17/6*16*A0*(R/(2R−1)), b := 17/6*16*A0*1, c := log(2R−1), d := 2·logR. hc : 0 ≤ log(2R−1): log(2R−1) ≥ log R... hmm I passed hlogRnn (0 ≤ log R) — wrong: need 0 ≤ Real.log (2*R−1). log(2R−1) ≥ log R ≥ 9? 2R−1 ≥ R ✓ so log(2R−1) ≥ log R ≥ 9 ≥ 0. Fix: provide `by have := hlog2R... ` — actually simpler: Real.log_nonneg (by linarith [hRpos] : (1:ℝ) ≤ 2*R−1). And hb : 0 ≤ 17/6*16*A0*1 — I passed mul_nonneg ... (0 ≤ R/(2R−1)) — wrong again: hb should be 0 ≤ b = 17/6*16*A0count*1. Fix: mul_nonneg (mul_nonneg (by norm_num) hA0) one_pos.le. Let me rewrite the h2 block: ``` have hlog21nn : (0:ℝ) ≤ Real.log (2*R-1) := Real.log_nonneg (by linarith [hRpos]) have h2 : (17 / 6 : ℝ) * 16 * A0count * (R / (2 * R - 1)) * Real.log (2 * R - 1) ≤ (17 / 6) * 16 * A0count * 1 * (2 * Real.log R) := mul_le_mul (mul_le_mul_of_nonneg_left hR21 (mul_nonneg (by norm_num : (0:ℝ) ≤ 17/6*16) hA0)) hlog2R hlog21nn (mul_nonneg (mul_nonneg (by norm_num : (0:ℝ) ≤ 17/6*16) hA0) one_pos.le) ``` Wait — mul_le_mul signature in this Mathlib (session-025 gotcha about swapped add versions — mul_le_mul is standard: mul_le_mul (hab : a ≤ b) (hcd : c ≤ d) (hc : 0 ≤ c) (hb : 0 ≤ b) : a * c ≤ b * d ✓ as I used in fiber_tail... I used mul_le_mul hfac1 hlogle hLnn (div_nonneg ...) in zero_tail_inv_sq_le ✓ same pattern). Let me apply all fixes.
Four fixes: `sum_image` direction, `abs_neg` form, the `rw [← h5]` self-nesting, and the `mul_le_mul` factor alignment in `hbound`.
tool: Edit
input
{
  "replace_all": false,
  "file_path": "D:\\Python\\Quantum\\research\\lean\\NguyenRH1\\NguyenRH1\\LiCircleBound.lean",
  "old_string": "    have hsum_img : \u2211 \u03c1 \u2208 FS, (zeroMult (\u03c1 : \u2102) : \u211d)\n        = \u2211 z \u2208 FS.image (Subtype.val), (zeroMult z : \u211d) :=\n      Finset.sum_image (fun x _ y _ h => Subtype.val_injective h)",
  "new_string": "    have hsum_img : \u2211 \u03c1 \u2208 FS, (zeroMult (\u03c1 : \u2102) : \u211d)\n        = \u2211 z \u2208 FS.image (Subtype.val), (zeroMult z : \u211d) :=\n      (Finset.sum_image (fun x _ y _ h => Subtype.val_injective h)).symm"
}
raw content_json (database row)
[{"type":"thinking","thinking":"Four errors:\n\n1. **Line 1200 (hsum_img)**: `Finset.sum_image` direction: it gives `∑ x ∈ s.image f, g x = ∑ x ∈ s, g (f x)`. Our goal: `∑ ρ ∈ FS, ↑(zeroMult ↑ρ) = ∑ z ∈ FS.image Subtype.val, ↑(zeroMult z)` — i.e., we need the .symm direction with g := fun z => (zeroMult z : ℝ). The RHS `∑ z ∈ image, g z` where g z = ↑(zeroMult z) — and g (Subtype.val ρ) = ↑(zeroMult ↑ρ) ✓ matches LHS. So `hsum_img := (Finset.sum_image (fun x _ y _ h => Subtype.val_injective h)).symm`. \n\n2. **Line 1247 (h2)**: `abs_neg M : |-M| = |M|` — expected |-M| = M. Fix: `abs_of_nonneg` after: `by rw [abs_neg, abs_of_nonneg (by linarith [hM1'] : (0:ℝ) ≤ M)]`. So h2 : |-M| = M := by rw [abs_neg]; exact abs_of_nonneg (by linarith [hM1']).\n\n3. **Line 1256 (h6)**: `|b| ≤ max |a| |(|b|)|` — the goal has `|(|b|)|` (abs of abs) because I did `rw [← h5]` where h5 : |b| = b — that rewrote b to |b| everywhere including inside the existing |b|. Goal was `(b:ℝ) ≤ max |a| |b|`; rw [← h5] turned it into `|b| ≤ max |a| |(|b|)|`. Bad. Instead: `have h6 : (b:ℝ) ≤ max |a| |b| := le_trans (le_abs_self b) (le_max_right _ _)`. Clean.\n\n4. **Line 1401**: `rw [h1]` then `field_simp; ring` — the \"No goals\" — h1's proof: `field_simp; ring` — field_simp closed it, ring errored \"No goals\". Wait — error at 1401:6 \"No goals to be solved\" — that's the `ring` after `field_simp` succeeded. Remove the ring? But which line is 1401... it's h1 in hbound: `field_simp; ring`. If field_simp closes, drop ring. But it might be fragile — replace with just `ring`? The identity: 17*R/6*(16*A0count*log(2R−1)/(2R−1)) = (17/6)*16*A0count*(R/(2R−1))*log(2R−1). With divisions — field_simp then ring is the standard pattern; if field_simp closed it alone, great — but \"No goals\" error means field_simp DID close and ring failed. So remove `ring`. But careful: maybe field_simp left no goals because it solved it via rfl-match. Remove ring.\n\nActually wait — error 1401 might be the `ring` in the calc step `_ = (272/3) * ... := by ring`? No — that would be needed. Line numbers: 1401 in hbound... h1's field_simp;ring is around there. Let me just fix: `:= by field_simp` — but if field_simp leaves a goal, error. Safer: `:= by rw [mul_div_assoc]; ring`? Hmm the forms: LHS 17*R/6*(16*A0*L/(2R−1)) — treat 17*R/6 as (17/6)*R: LHS = (17/6)*R*16*A0*L/(2R−1); RHS = (17/6)*16*A0*(R/(2R−1))*L = (17/6)*16*A0*R*L/(2R−1). Same by ring_nf handling division? `ring` handles division in fields: goal is an identity in the field ℝ with div — `ring` should close it directly (ring normalizes rat funcs). Just use `by ring`. Hmm — but ring with Real.log(2R−1) as an atom and (2R−1) as an atom: the identity is rational in the atoms {R, A0count, Real.log (2*R−1), (2*R−1)...} — but (2*R−1) appears both as atom (inside log) and as algebraic expression 2R−1 (in the divisor). ring treats Real.log(2*R−1) as an opaque atom whose argument is normalized to 2*R−1 ✓ and the divisor 2*R−1 normalizes to the same ✓. So `ring` alone should work. Use `:= by ring`.\n\n5. **Line 1406 (h2's first apply)**: `apply mul_le_mul_of_nonneg_left _ hA0` — the goal at that point: after `apply mul_le_mul`, first goal is `17/6*16*A0count*(R/(2R−1)) ≤ 17/6*16*A0count*1` — my apply chain tried to peel factors one at a time but mul_le_mul_of_nonneg_left only strips ONE left factor A0count, leaving `17/6*16*(R/(2R−1)) ≤ 17/6*16*1` mismatch — the apply failed because the goal has THREE left factors before A0count? Wait goal: `17 / 6 * 16 * A0count * (R / (2 * R - 1)) ≤ 17 / 6 * 16 * A0count * 1`. mul_le_mul_of_nonneg_left (h : b ≤ a) (hc : 0 ≤ c) : c*b ≤ c*a. Unify c*? = 17/6*16*A0count*(R/(2R−1)): with b := R/(2R−1), a := 1: c must be 17/6*16*A0count — the apply `mul_le_mul_of_nonneg_left _ hA0` forces c := A0count (from hA0 : 0 ≤ A0count) — mismatch since the head constant is 17/6*16*A0count. Fix: `apply mul_le_mul_of_nonneg_left hR21 (by positivity : (0:ℝ) ≤ 17/6*16*A0count)` — one step: hR21 : R/(2R−1) ≤ 1 ✓ c := 17/6*16*A0count, positivity should handle A0count? NO — banked gotcha: positivity can't see through Classical.choose defs (A0count). Use explicit: mul_nonneg (mul_nonneg (by norm_num) (by norm_num)) hA0... (0 ≤ 17/6*16*A0count): = mul_nonneg (by norm_num : (0:ℝ) ≤ 17/6*16) hA0. So:\n```\n· exact mul_le_mul_of_nonneg_left hR21\n    (mul_nonneg (by norm_num : (0:ℝ) ≤ 17/6*16) hA0)\n```\n✓.\n\nAlso check the mul_le_mul's other args in h2: mul_le_mul (hab : a≤b) (hcd : c≤d) (hc : 0≤c) (hb : 0≤b) : a*c ≤ b*d with a := 17/6*16*A0*(R/(2R−1)), b := 17/6*16*A0*1, c := log(2R−1), d := 2·logR. hc : 0 ≤ log(2R−1): log(2R−1) ≥ log R... hmm I passed hlogRnn (0 ≤ log R) — wrong: need 0 ≤ Real.log (2*R−1). log(2R−1) ≥ log R ≥ 9? 2R−1 ≥ R ✓ so log(2R−1) ≥ log R ≥ 9 ≥ 0. Fix: provide `by have := hlog2R... ` — actually simpler: Real.log_nonneg (by linarith [hRpos] : (1:ℝ) ≤ 2*R−1). And hb : 0 ≤ 17/6*16*A0*1 — I passed mul_nonneg ... (0 ≤ R/(2R−1)) — wrong again: hb should be 0 ≤ b = 17/6*16*A0count*1. Fix: mul_nonneg (mul_nonneg (by norm_num) hA0) one_pos.le.\n\nLet me rewrite the h2 block:\n```\n    have hlog21nn : (0:ℝ) ≤ Real.log (2*R-1) := Real.log_nonneg (by linarith [hRpos])\n    have h2 : (17 / 6 : ℝ) * 16 * A0count * (R / (2 * R - 1)) * Real.log (2 * R - 1)\n        ≤ (17 / 6) * 16 * A0count * 1 * (2 * Real.log R) :=\n      mul_le_mul\n        (mul_le_mul_of_nonneg_left hR21 (mul_nonneg (by norm_num : (0:ℝ) ≤ 17/6*16) hA0))\n        hlog2R hlog21nn\n        (mul_nonneg (mul_nonneg (by norm_num : (0:ℝ) ≤ 17/6*16) hA0) one_pos.le)\n```\n\nWait — mul_le_mul signature in this Mathlib (session-025 gotcha about swapped add versions — mul_le_mul is standard: mul_le_mul (hab : a ≤ b) (hcd : c ≤ d) (hc : 0 ≤ c) (hb : 0 ≤ b) : a * c ≤ b * d ✓ as I used in fiber_tail... I used mul_le_mul hfac1 hlogle hLnn (div_nonneg ...) in zero_tail_inv_sq_le ✓ same pattern).\n\nLet me apply all fixes.","signature":""},{"type":"text","text":"Four fixes: `sum_image` direction, `abs_neg` form, the `rw [← h5]` self-nesting, and the `mul_le_mul` factor alignment in `hbound`."},{"type":"tool_use","id":"Edit_35","name":"Edit","input":{"replace_all":false,"file_path":"D:\\Python\\Quantum\\research\\lean\\NguyenRH1\\NguyenRH1\\LiCircleBound.lean","old_string":"    have hsum_img : ∑ ρ ∈ FS, (zeroMult (ρ : ℂ) : ℝ)\n        = ∑ z ∈ FS.image (Subtype.val), (zeroMult z : ℝ) :=\n      Finset.sum_image (fun x _ y _ h => Subtype.val_injective h)","new_string":"    have hsum_img : ∑ ρ ∈ FS, (zeroMult (ρ : ℂ) : ℝ)\n        = ∑ z ∈ FS.image (Subtype.val), (zeroMult z : ℝ) :=\n      (Finset.sum_image (fun x _ y _ h => Subtype.val_injective h)).symm"},"extra_content":null}]