← Session 35 — ii′-6-R: Lagarias 6.1 right-tail re-proof (E-032/D-073)
thinking (3024 chars)
Two errors:
1. `zeta_ne_zero_horizontal` (line ~144): my `rw [← him]` rewrote T to the messy form `(↑σ + ↑(↑σ + ↑T * I).im * I).im` — the rw [← him] replaced occurrences of T inside the goal including inside `him`'s own RHS... classic rewrite-loop. Better approach: don't rw at all — apply hTwide directly to the point `↑σ + ↑T * I` with im computed via him:
```lean
have hc := hTwide _ hnt (by rw [him]; exact hγ1) (by rw [him]; exact hγ2)
```
Wait — hTwide ρ hρ (h1 : √n−1 < ρ.im) (h2 : ρ.im < √n+2): with ρ := ↑σ + ↑T·I: ρ.im needs to be T: the hypothesis goals are √n−1 < (↑σ + ↑T·I).im — rw [him] changes (↑σ + ↑T·I).im to T ✓ that works (rw [him] at the GOAL, him : (...).im = T). Then hc : 1/(9·C0hat(√n+2)) ≤ |(↑σ + ↑T·I).im − T|. Then rw [him] at hc: |T − T| ✓ then sub_self, abs_zero. My error: I used `rw [← him]` (T → (...).im) which rewrote T everywhere including nested occurrences. Fix: use him in the forward direction.
2. `jlag_left_vertical_norm_even` (line ~194): the `simp` didn't close the conj-point identity: goal `-5/2 = -(starRingEnd ℂ) 5 / (starRingEnd ℂ) 2` — the map on ((-5/2:ℝ):ℂ) didn't simplify to -5/2. Need: (starRingEnd ℂ) ((-5/2:ℝ):ℂ) = ((-5/2:ℝ):ℂ) — via `Complex.conj_ofReal`. Let me write it explicitly:
```lean
have hconj : ((-5 / 2 : ℝ) : ℂ) + (-t : ℝ) * Complex.I =
(starRingEnd ℂ) (((-5 / 2 : ℝ) : ℂ) + (t : ℝ) * Complex.I) := by
rw [map_add, Complex.conj_ofReal, map_mul, Complex.conj_ofReal, Complex.conj_I,
mul_neg, ← ofReal_neg]
```
Hmm — map_mul on (↑t * I): gives ↑t * (-I) = -(↑t * I); and ↑(-t) = -↑t: (-↑t)*I = -(↑t*I) ✓. `← ofReal_neg` : (↑(-t) : ℂ) = -(↑t). Let me just do: `simp [map_add, Complex.conj_ofReal, ← ofReal_neg]` or push_cast-style. Simplest robust: `apply Complex.ext <;> simp [Complex.conj_ofReal]` — ext on re/im: re: (-5/2 + 0) vs (conj(...)).re = -5/2 ✓; im: -t vs -(t) ✓. Let me use ext + simp. Actually DL-5's hid2 was `by simp` for a similar identity with a variable σ — it worked there (hid2 : (↑σ + ↑(-T)*I) = starRingEnd (↑σ + ↑T*I) by simp). Here the difference: -5/2 is a numeric division inside ofReal — simp's handling of `(starRingEnd ℂ) ↑(-5/2)` should go through conj_ofReal... The error shows simp rewrote ofReal(-5/2) to `-(starRingEnd)5/(starRingEnd)2` — it unfolded the -5/2 into -(5)/2 and applied map_neg/map_div to the COMPLEX numeral side?? The goal displayed: `-5 / 2 = -(starRingEnd ℂ) 5 / (starRingEnd ℂ) 2` — so simp turned starRingEnd(↑(-5/2)) [which is (-5/2 : ℂ) on the LHS] — hmm actually the LHS -5/2 : ℂ got simp-normalized to -(5:ℂ)/2 and RHS conj(↑(-5/2)) = ↑(-5/2) via conj_ofReal then normalized to -(starRingEnd 5)/(starRingEnd 2)?? Weird. The DL-5 case had a VARIABLE real σ (no numerals) — numerals trigger the ratCast normalization. Fix: ext + simp per component:
```lean
apply Complex.ext
· simp
· simp
```
re: (↑(-5/2) + ↑(-t)*I).re = -5/2; (starRingEnd (↑(-5/2)+↑t*I)).re = (↑(-5/2)+↑t*I).re = -5/2 ✓ simp [Complex.add_re, ...]. im: -t vs -(t) ✓.
Let me apply the fixes.
Two fixes: the `rw [← him]` loop (use forward direction) and the numeral-cast conj identity (use `Complex.ext`).
tool: Edit
input
{
"file_path": "D:\\Python\\Quantum\\research\\lean\\NguyenRH1\\NguyenRH1\\LiSideBounds.lean",
"old_string": " rcases zeta_zero_classification h\u03b6 with hnt | h0 | hn2\n \u00b7 -- nontrivial with im = T: inside the clearance window\n have h\u03b31 : Real.sqrt n - 1 < T := by linarith [Real.sqrt_nonneg (n : \u211d)]\n have h\u03b32 : T < Real.sqrt n + 2 := by linarith\n have hc := hTwide _ hnt (by rw [\u2190 him]; exact h\u03b31) (by rw [\u2190 him]; exact h\u03b32)\n rw [\u2190 him, sub_self, abs_zero] at hc",
"new_string": " rcases zeta_zero_classification h\u03b6 with hnt | h0 | hn2\n \u00b7 -- nontrivial with im = T: inside the clearance window\n have h\u03b31 : Real.sqrt n - 1 < T := by linarith [Real.sqrt_nonneg (n : \u211d)]\n have h\u03b32 : T < Real.sqrt n + 2 := by linarith\n have hc := hTwide _ hnt (by rw [him]; exact h\u03b31) (by rw [him]; exact h\u03b32)\n rw [him, sub_self, abs_zero] at hc"
}
raw content_json (database row)
[{"type":"thinking","thinking":"Two errors:\n\n1. `zeta_ne_zero_horizontal` (line ~144): my `rw [← him]` rewrote T to the messy form `(↑σ + ↑(↑σ + ↑T * I).im * I).im` — the rw [← him] replaced occurrences of T inside the goal including inside `him`'s own RHS... classic rewrite-loop. Better approach: don't rw at all — apply hTwide directly to the point `↑σ + ↑T * I` with im computed via him:\n\n```lean\n have hc := hTwide _ hnt (by rw [him]; exact hγ1) (by rw [him]; exact hγ2)\n```\nWait — hTwide ρ hρ (h1 : √n−1 < ρ.im) (h2 : ρ.im < √n+2): with ρ := ↑σ + ↑T·I: ρ.im needs to be T: the hypothesis goals are √n−1 < (↑σ + ↑T·I).im — rw [him] changes (↑σ + ↑T·I).im to T ✓ that works (rw [him] at the GOAL, him : (...).im = T). Then hc : 1/(9·C0hat(√n+2)) ≤ |(↑σ + ↑T·I).im − T|. Then rw [him] at hc: |T − T| ✓ then sub_self, abs_zero. My error: I used `rw [← him]` (T → (...).im) which rewrote T everywhere including nested occurrences. Fix: use him in the forward direction.\n\n2. `jlag_left_vertical_norm_even` (line ~194): the `simp` didn't close the conj-point identity: goal `-5/2 = -(starRingEnd ℂ) 5 / (starRingEnd ℂ) 2` — the map on ((-5/2:ℝ):ℂ) didn't simplify to -5/2. Need: (starRingEnd ℂ) ((-5/2:ℝ):ℂ) = ((-5/2:ℝ):ℂ) — via `Complex.conj_ofReal`. Let me write it explicitly:\n\n```lean\n have hconj : ((-5 / 2 : ℝ) : ℂ) + (-t : ℝ) * Complex.I =\n (starRingEnd ℂ) (((-5 / 2 : ℝ) : ℂ) + (t : ℝ) * Complex.I) := by\n rw [map_add, Complex.conj_ofReal, map_mul, Complex.conj_ofReal, Complex.conj_I,\n mul_neg, ← ofReal_neg]\n```\nHmm — map_mul on (↑t * I): gives ↑t * (-I) = -(↑t * I); and ↑(-t) = -↑t: (-↑t)*I = -(↑t*I) ✓. `← ofReal_neg` : (↑(-t) : ℂ) = -(↑t). Let me just do: `simp [map_add, Complex.conj_ofReal, ← ofReal_neg]` or push_cast-style. Simplest robust: `apply Complex.ext <;> simp [Complex.conj_ofReal]` — ext on re/im: re: (-5/2 + 0) vs (conj(...)).re = -5/2 ✓; im: -t vs -(t) ✓. Let me use ext + simp. Actually DL-5's hid2 was `by simp` for a similar identity with a variable σ — it worked there (hid2 : (↑σ + ↑(-T)*I) = starRingEnd (↑σ + ↑T*I) by simp). Here the difference: -5/2 is a numeric division inside ofReal — simp's handling of `(starRingEnd ℂ) ↑(-5/2)` should go through conj_ofReal... The error shows simp rewrote ofReal(-5/2) to `-(starRingEnd)5/(starRingEnd)2` — it unfolded the -5/2 into -(5)/2 and applied map_neg/map_div to the COMPLEX numeral side?? The goal displayed: `-5 / 2 = -(starRingEnd ℂ) 5 / (starRingEnd ℂ) 2` — so simp turned starRingEnd(↑(-5/2)) [which is (-5/2 : ℂ) on the LHS] — hmm actually the LHS -5/2 : ℂ got simp-normalized to -(5:ℂ)/2 and RHS conj(↑(-5/2)) = ↑(-5/2) via conj_ofReal then normalized to -(starRingEnd 5)/(starRingEnd 2)?? Weird. The DL-5 case had a VARIABLE real σ (no numerals) — numerals trigger the ratCast normalization. Fix: ext + simp per component:\n\n```lean\n apply Complex.ext\n · simp\n · simp\n```\nre: (↑(-5/2) + ↑(-t)*I).re = -5/2; (starRingEnd (↑(-5/2)+↑t*I)).re = (↑(-5/2)+↑t*I).re = -5/2 ✓ simp [Complex.add_re, ...]. im: -t vs -(t) ✓.\n\nLet me apply the fixes.","signature":""},{"type":"text","text":"Two fixes: the `rw [← him]` loop (use forward direction) and the numeral-cast conj identity (use `Complex.ext`)."},{"type":"tool_use","id":"Edit_49","name":"Edit","input":{"file_path":"D:\\Python\\Quantum\\research\\lean\\NguyenRH1\\NguyenRH1\\LiSideBounds.lean","old_string":" rcases zeta_zero_classification hζ with hnt | h0 | hn2\n · -- nontrivial with im = T: inside the clearance window\n have hγ1 : Real.sqrt n - 1 < T := by linarith [Real.sqrt_nonneg (n : ℝ)]\n have hγ2 : T < Real.sqrt n + 2 := by linarith\n have hc := hTwide _ hnt (by rw [← him]; exact hγ1) (by rw [← him]; exact hγ2)\n rw [← him, sub_self, abs_zero] at hc","new_string":" rcases zeta_zero_classification hζ with hnt | h0 | hn2\n · -- nontrivial with im = T: inside the clearance window\n have hγ1 : Real.sqrt n - 1 < T := by linarith [Real.sqrt_nonneg (n : ℝ)]\n have hγ2 : T < Real.sqrt n + 2 := by linarith\n have hc := hTwide _ hnt (by rw [him]; exact hγ1) (by rw [him]; exact hγ2)\n rw [him, sub_self, abs_zero] at hc"},"extra_content":null}]