← Session 33 — ii′-3b/3c crux + F-D finding; Lagarias letter package
thinking (3953 chars)
Two errors:
1. **Line 194** (hX): after `rw [hderiv_zetaA, zetaA_apply hs1', logDeriv_apply]` — wait no, line 194:47 is hX itself: `(zetaA (1 + s) - (zetaA (1 + s) - s * deriv zetaA (1 + s))) / s = deriv zetaA (1 + s)` — hmm wait, that's the goal AFTER `field_simp [hs0]` in hX. The field_simp produced this goal and didn't close it. The goal: (zetaA − (zetaA − s·deriv))/s = deriv — i.e. (s·deriv)/s = deriv. field_simp [hs0] should clear... it produced `(zetaA (1+s) − (zetaA (1+s) − s * deriv zetaA (1+s))) / s = deriv zetaA (1+s)` — hmm this still HAS /s. So field_simp didn't clear the division — probably because zetaA (1+s) appears and the hZAs (zetaA (1+s) ≠ 0) wasn't given — wait no, the division here is by s only. Hmm — actually looking at hX's statement: (1 − (1 − s·X))/s = X where X = deriv zetaA (1+s)/zetaA (1+s). field_simp [hs0] — to clear BOTH s and zetaA denominators needs hZAs too! X itself contains /zetaA. field_simp [hs0] only got s's ≠ 0... it partially normalized. The displayed goal still has `/s` and lost the /zetaA on the RHS (RHS shows `deriv zetaA (1 + s)` — no /zetaA!). So field_simp multiplied through and produced a weird state.
Fix: give field_simp both: field_simp [hs0, hZAs] and follow with ring if needed. Actually the cleaner: prove hX by pure field manipulation:
```lean
have hX : (1 - (1 - s * (deriv zetaA (1 + s) / zetaA (1 + s)))) / s =
deriv zetaA (1 + s) / zetaA (1 + s) := by
have e : 1 - (1 - s * (deriv zetaA (1 + s) / zetaA (1 + s))) =
s * (deriv zetaA (1 + s) / zetaA (1 + s)) := by ring
rw [e, mul_div_cancel_left₀ _ hs0]
```
mul_div_cancel_left₀ : a ≠ 0 → (a * b) / a = b ✓ (check name: mul_div_cancel_left₀ (ha : a ≠ 0) : a * b / a = b — might be mul_div_cancel_left₀ (b) (ha)? or `mul_div_cancel_left` — safer: field_simp [hs0] on the rw [e] goal: (s·X)/s = X — field_simp closes. Or: rw [e, mul_comm s _, mul_div_cancel _ hs0]? hmm names. Let me use:
```lean
rw [e]
field_simp [hs0]
```
(s·X)/s = X with hs0 — field_simp should close outright ✓ (banked pattern).
2. **Line 205** (hderiv_zetaA): rw [hsplit, deriv_mul ...] — the deriv_mul rewrite failed: pattern `deriv ((fun y => id y - 1) * riemannZeta) (1 + s)` not found — the actual function after hsplit is `(fun w => w - 1) * riemannZeta` — but deriv_mul's f was instantiated from hf := differentiableAt_id.sub_const 1 : DifferentiableAt ℂ (fun y => id y - 1)?? `differentiableAt_id.sub_const 1` produces DifferentiableAt (fun x => id x - 1)?? So f := fun y => id y − 1 ≠ fun w => w − 1 syntactically (id-wrapped). Fix: use `differentiableAt_id'.sub_const 1`? differentiableAt_id' : DifferentiableAt 𝕜 (fun x => x) — the lambda form ✓. Or ascribe hf:
```lean
have hf : DifferentiableAt ℂ (fun w : ℂ => w - 1) (1 + s) := differentiableAt_id.sub_const 1
```
defeq assignment (id x = x) ✓. Then deriv_mul hf hg — f := fun w => w − 1 matches hsplit ✓.
Also check h1's simpa: ((hasDerivAt_id' (1 + s)).sub_const 1).deriv : deriv (fun x => id?...) — hasDerivAt_id' : HasDerivAt (fun x => x) 1? hasDerivAt_id' (x) : HasDerivAt (fun x ↦ x) 1 x ✓ lambda form ✓ .sub_const 1 : HasDerivAt (fun x => x − 1) (1 − 0)? and .deriv : deriv (fun x => x−1) (1+s) = 1−0. simpa using that: goal deriv (fun w => w−1) (1+s) = 1 ✓ simp normalizes 1−0 → 1 and matches lambda forms (fun x => x − 1 vs fun w => w − 1 — alpha-equiv ✓ defeq; simpa handles).
Also — the second error's context: after rw [← hzeq.deriv_eq], the goal was `deriv (fun w => (w−1) * riemannZeta w) (1+s) = ...`? The error shows the target as `deriv ((fun w => w - 1) * riemannZeta) (1 + s) = ...` — so hsplit DID rewrite (goal now has the Pi.mul form `(fun w => w−1) * riemannZeta`), and deriv_mul with the id-wrapped hf didn't match. With ascribed hf it matches.
Wait — hsplit as written: `(fun w : ℂ => (w - 1) * riemannZeta w) = (fun w : ℂ => w - 1) * riemannZeta := rfl` — rfl between pointwise-lambda and Pi.mul ✓.
Fix both.
Two fixes: hX's field_simp needs a cleaner path, and deriv_mul's `f` got id-wrapped (needs ascription).
tool: Edit
input
{
"file_path": "D:\\Python\\Quantum\\research\\lean\\NguyenRH1\\NguyenRH1\\LiCrux.lean",
"old_string": " have hX : (1 - (1 - s * (deriv zetaA (1 + s) / zetaA (1 + s)))) / s =\n deriv zetaA (1 + s) / zetaA (1 + s) := by\n field_simp [hs0]\n rw [hX]",
"new_string": " have hX : (1 - (1 - s * (deriv zetaA (1 + s) / zetaA (1 + s)))) / s =\n deriv zetaA (1 + s) / zetaA (1 + s) := by\n have e : 1 - (1 - s * (deriv zetaA (1 + s) / zetaA (1 + s))) =\n s * (deriv zetaA (1 + s) / zetaA (1 + s)) := by ring\n rw [e]\n field_simp [hs0]\n rw [hX]"
}
raw content_json (database row)
[{"type":"thinking","thinking":"Two errors:\n\n1. **Line 194** (hX): after `rw [hderiv_zetaA, zetaA_apply hs1', logDeriv_apply]` — wait no, line 194:47 is hX itself: `(zetaA (1 + s) - (zetaA (1 + s) - s * deriv zetaA (1 + s))) / s = deriv zetaA (1 + s)` — hmm wait, that's the goal AFTER `field_simp [hs0]` in hX. The field_simp produced this goal and didn't close it. The goal: (zetaA − (zetaA − s·deriv))/s = deriv — i.e. (s·deriv)/s = deriv. field_simp [hs0] should clear... it produced `(zetaA (1+s) − (zetaA (1+s) − s * deriv zetaA (1+s))) / s = deriv zetaA (1+s)` — hmm this still HAS /s. So field_simp didn't clear the division — probably because zetaA (1+s) appears and the hZAs (zetaA (1+s) ≠ 0) wasn't given — wait no, the division here is by s only. Hmm — actually looking at hX's statement: (1 − (1 − s·X))/s = X where X = deriv zetaA (1+s)/zetaA (1+s). field_simp [hs0] — to clear BOTH s and zetaA denominators needs hZAs too! X itself contains /zetaA. field_simp [hs0] only got s's ≠ 0... it partially normalized. The displayed goal still has `/s` and lost the /zetaA on the RHS (RHS shows `deriv zetaA (1 + s)` — no /zetaA!). So field_simp multiplied through and produced a weird state.\n\nFix: give field_simp both: field_simp [hs0, hZAs] and follow with ring if needed. Actually the cleaner: prove hX by pure field manipulation:\n```lean\n have hX : (1 - (1 - s * (deriv zetaA (1 + s) / zetaA (1 + s)))) / s =\n deriv zetaA (1 + s) / zetaA (1 + s) := by\n have e : 1 - (1 - s * (deriv zetaA (1 + s) / zetaA (1 + s))) =\n s * (deriv zetaA (1 + s) / zetaA (1 + s)) := by ring\n rw [e, mul_div_cancel_left₀ _ hs0]\n```\nmul_div_cancel_left₀ : a ≠ 0 → (a * b) / a = b ✓ (check name: mul_div_cancel_left₀ (ha : a ≠ 0) : a * b / a = b — might be mul_div_cancel_left₀ (b) (ha)? or `mul_div_cancel_left` — safer: field_simp [hs0] on the rw [e] goal: (s·X)/s = X — field_simp closes. Or: rw [e, mul_comm s _, mul_div_cancel _ hs0]? hmm names. Let me use: \n```lean\n rw [e]\n field_simp [hs0]\n```\n(s·X)/s = X with hs0 — field_simp should close outright ✓ (banked pattern).\n\n2. **Line 205** (hderiv_zetaA): rw [hsplit, deriv_mul ...] — the deriv_mul rewrite failed: pattern `deriv ((fun y => id y - 1) * riemannZeta) (1 + s)` not found — the actual function after hsplit is `(fun w => w - 1) * riemannZeta` — but deriv_mul's f was instantiated from hf := differentiableAt_id.sub_const 1 : DifferentiableAt ℂ (fun y => id y - 1)?? `differentiableAt_id.sub_const 1` produces DifferentiableAt (fun x => id x - 1)?? So f := fun y => id y − 1 ≠ fun w => w − 1 syntactically (id-wrapped). Fix: use `differentiableAt_id'.sub_const 1`? differentiableAt_id' : DifferentiableAt 𝕜 (fun x => x) — the lambda form ✓. Or ascribe hf:\n```lean\n have hf : DifferentiableAt ℂ (fun w : ℂ => w - 1) (1 + s) := differentiableAt_id.sub_const 1\n```\ndefeq assignment (id x = x) ✓. Then deriv_mul hf hg — f := fun w => w − 1 matches hsplit ✓.\n\nAlso check h1's simpa: ((hasDerivAt_id' (1 + s)).sub_const 1).deriv : deriv (fun x => id?...) — hasDerivAt_id' : HasDerivAt (fun x => x) 1? hasDerivAt_id' (x) : HasDerivAt (fun x ↦ x) 1 x ✓ lambda form ✓ .sub_const 1 : HasDerivAt (fun x => x − 1) (1 − 0)? and .deriv : deriv (fun x => x−1) (1+s) = 1−0. simpa using that: goal deriv (fun w => w−1) (1+s) = 1 ✓ simp normalizes 1−0 → 1 and matches lambda forms (fun x => x − 1 vs fun w => w − 1 — alpha-equiv ✓ defeq; simpa handles).\n\nAlso — the second error's context: after rw [← hzeq.deriv_eq], the goal was `deriv (fun w => (w−1) * riemannZeta w) (1+s) = ...`? The error shows the target as `deriv ((fun w => w - 1) * riemannZeta) (1 + s) = ...` — so hsplit DID rewrite (goal now has the Pi.mul form `(fun w => w−1) * riemannZeta`), and deriv_mul with the id-wrapped hf didn't match. With ascribed hf it matches.\n\nWait — hsplit as written: `(fun w : ℂ => (w - 1) * riemannZeta w) = (fun w : ℂ => w - 1) * riemannZeta := rfl` — rfl between pointwise-lambda and Pi.mul ✓.\n\nFix both.","signature":""},{"type":"text","text":"Two fixes: hX's field_simp needs a cleaner path, and deriv_mul's `f` got id-wrapped (needs ascription)."},{"type":"tool_use","id":"Edit_109","name":"Edit","input":{"file_path":"D:\\Python\\Quantum\\research\\lean\\NguyenRH1\\NguyenRH1\\LiCrux.lean","old_string":" have hX : (1 - (1 - s * (deriv zetaA (1 + s) / zetaA (1 + s)))) / s =\n deriv zetaA (1 + s) / zetaA (1 + s) := by\n field_simp [hs0]\n rw [hX]","new_string":" have hX : (1 - (1 - s * (deriv zetaA (1 + s) / zetaA (1 + s)))) / s =\n deriv zetaA (1 + s) / zetaA (1 + s) := by\n have e : 1 - (1 - s * (deriv zetaA (1 + s) / zetaA (1 + s))) =\n s * (deriv zetaA (1 + s) / zetaA (1 + s)) := by ring\n rw [e]\n field_simp [hs0]\n rw [hX]"},"extra_content":null}]