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Theorem constrext2chnlem 34171
Description: Lemma for constrext2chn 34180. (Contributed by Thierry Arnoux, 26-Oct-2025.)
Hypotheses
Ref Expression
constr0.1 𝐶 = rec((𝑠 ∈ V ↦ {𝑥 ∈ ℂ ∣ (∃𝑎𝑠𝑏𝑠𝑐𝑠𝑑𝑠𝑡 ∈ ℝ ∃𝑟 ∈ ℝ (𝑥 = (𝑎 + (𝑡 · (𝑏𝑎))) ∧ 𝑥 = (𝑐 + (𝑟 · (𝑑𝑐))) ∧ (ℑ‘((∗‘(𝑏𝑎)) · (𝑑𝑐))) ≠ 0) ∨ ∃𝑎𝑠𝑏𝑠𝑐𝑠𝑒𝑠𝑓𝑠𝑡 ∈ ℝ (𝑥 = (𝑎 + (𝑡 · (𝑏𝑎))) ∧ (abs‘(𝑥𝑐)) = (abs‘(𝑒𝑓))) ∨ ∃𝑎𝑠𝑏𝑠𝑐𝑠𝑑𝑠𝑒𝑠𝑓𝑠 (𝑎𝑑 ∧ (abs‘(𝑥𝑎)) = (abs‘(𝑏𝑐)) ∧ (abs‘(𝑥𝑑)) = (abs‘(𝑒𝑓))))}), {0, 1})
constrextdg2.1 𝐸 = (ℂflds 𝑒)
constrextdg2.2 𝐹 = (ℂflds 𝑓)
constrextdg2.l < = {⟨𝑓, 𝑒⟩ ∣ (𝐸/FldExt𝐹 ∧ (𝐸[:]𝐹) = 2)}
constrextdg2.n (𝜑𝑁 ∈ ω)
constrext2chnlem.q 𝑄 = (ℂflds ℚ)
constrext2chnlem.l 𝐿 = (ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))
constrext2chnlem.a (𝜑𝐴 ∈ Constr)
Assertion
Ref Expression
constrext2chnlem (𝜑 → ∃𝑛 ∈ ℕ0 (𝐿[:]𝑄) = (2↑𝑛))
Distinct variable groups:   < ,𝑎,𝑏,𝑐,𝑑,𝑒,𝑓,𝑛,𝑟,𝑠,𝑡,𝑥   𝐶,𝑎,𝑏,𝑐,𝑑,𝑒,𝑓,𝑛,𝑟,𝑠,𝑡,𝑥   𝑡,𝑁   𝐴,𝑛   𝑛,𝐿   𝑄,𝑛   𝜑,𝑛
Allowed substitution hints:   𝜑(𝑥, 𝑡, 𝑒, 𝑓, 𝑠, 𝑟, 𝑎, 𝑏, 𝑐, 𝑑)   𝐴(𝑥, 𝑡, 𝑒, 𝑓, 𝑠, 𝑟, 𝑎, 𝑏, 𝑐, 𝑑)   𝑄(𝑥, 𝑡, 𝑒, 𝑓, 𝑠, 𝑟, 𝑎, 𝑏, 𝑐, 𝑑)   𝐸(𝑥, 𝑡, 𝑒, 𝑓, 𝑛, 𝑠, 𝑟, 𝑎, 𝑏, 𝑐, 𝑑)   𝐹(𝑥, 𝑡, 𝑒, 𝑓, 𝑛, 𝑠, 𝑟, 𝑎, 𝑏, 𝑐, 𝑑)   𝐿(𝑥, 𝑡, 𝑒, 𝑓, 𝑠, 𝑟, 𝑎, 𝑏, 𝑐, 𝑑)   𝑁(𝑥, 𝑒, 𝑓, 𝑛, 𝑠, 𝑟, 𝑎, 𝑏, 𝑐, 𝑑)

Proof of Theorem constrext2chnlem
Dummy variables 𝑣 𝑚 𝑝 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 2prm 16775 . . . . . 6 2 ∈ ℙ
21a1i 11 . . . . 5 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → 2 ∈ ℙ)
3 constrext2chnlem.l . . . . . . 7 𝐿 = (ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))
4 constrext2chnlem.q . . . . . . 7 𝑄 = (ℂflds ℚ)
53, 4oveq12i 7435 . . . . . 6 (𝐿[:]𝑄) = ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))
6 cnfldbas 21563 . . . . . . . . . 10 ℂ = (Base‘ℂfld)
7 eqid 2766 . . . . . . . . . 10 (ℂflds ℚ) = (ℂflds ℚ)
8 eqid 2766 . . . . . . . . . 10 (ℂflds (ℂfld fldGen (ℚ ∪ {𝐴}))) = (ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))
9 cnfldfld 33693 . . . . . . . . . . 11 fld ∈ Field
109a1i 11 . . . . . . . . . 10 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → ℂfld ∈ Field)
11 cndrng 21588 . . . . . . . . . . . 12 fld ∈ DivRing
12 qsubdrg 21606 . . . . . . . . . . . . 13 (ℚ ∈ (SubRing‘ℂfld) ∧ (ℂflds ℚ) ∈ DivRing)
1312simpli 489 . . . . . . . . . . . 12 ℚ ∈ (SubRing‘ℂfld)
1412simpri 491 . . . . . . . . . . . 12 (ℂflds ℚ) ∈ DivRing
15 issdrg 20928 . . . . . . . . . . . 12 (ℚ ∈ (SubDRing‘ℂfld) ↔ (ℂfld ∈ DivRing ∧ ℚ ∈ (SubRing‘ℂfld) ∧ (ℂflds ℚ) ∈ DivRing))
1611, 13, 14, 15mpbir3an 1360 . . . . . . . . . . 11 ℚ ∈ (SubDRing‘ℂfld)
1716a1i 11 . . . . . . . . . 10 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → ℚ ∈ (SubDRing‘ℂfld))
18 constr0.1 . . . . . . . . . . . . . 14 𝐶 = rec((𝑠 ∈ V ↦ {𝑥 ∈ ℂ ∣ (∃𝑎𝑠𝑏𝑠𝑐𝑠𝑑𝑠𝑡 ∈ ℝ ∃𝑟 ∈ ℝ (𝑥 = (𝑎 + (𝑡 · (𝑏𝑎))) ∧ 𝑥 = (𝑐 + (𝑟 · (𝑑𝑐))) ∧ (ℑ‘((∗‘(𝑏𝑎)) · (𝑑𝑐))) ≠ 0) ∨ ∃𝑎𝑠𝑏𝑠𝑐𝑠𝑒𝑠𝑓𝑠𝑡 ∈ ℝ (𝑥 = (𝑎 + (𝑡 · (𝑏𝑎))) ∧ (abs‘(𝑥𝑐)) = (abs‘(𝑒𝑓))) ∨ ∃𝑎𝑠𝑏𝑠𝑐𝑠𝑑𝑠𝑒𝑠𝑓𝑠 (𝑎𝑑 ∧ (abs‘(𝑥𝑎)) = (abs‘(𝑏𝑐)) ∧ (abs‘(𝑥𝑑)) = (abs‘(𝑒𝑓))))}), {0, 1})
19 nnon 7877 . . . . . . . . . . . . . . 15 (𝑚 ∈ ω → 𝑚 ∈ On)
2019adantl 487 . . . . . . . . . . . . . 14 ((𝜑𝑚 ∈ ω) → 𝑚 ∈ On)
2118, 20constrsscn 34161 . . . . . . . . . . . . 13 ((𝜑𝑚 ∈ ω) → (𝐶𝑚) ⊆ ℂ)
2221sselda 3940 . . . . . . . . . . . 12 (((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) → 𝐴 ∈ ℂ)
2322snssd 4757 . . . . . . . . . . 11 (((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) → {𝐴} ⊆ ℂ)
2423ad2antrr 739 . . . . . . . . . 10 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → {𝐴} ⊆ ℂ)
256, 7, 8, 10, 17, 24fldgenfldext 34089 . . . . . . . . 9 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))/FldExt(ℂflds ℚ))
2625ad2antrr 739 . . . . . . . 8 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → (ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))/FldExt(ℂflds ℚ))
27 extdgcl 34077 . . . . . . . 8 ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))/FldExt(ℂflds ℚ) → ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∈ ℕ0*)
2826, 27syl 18 . . . . . . 7 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∈ ℕ0*)
29 simpr 490 . . . . . . . . . 10 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝))
30 2z 12644 . . . . . . . . . . . 12 2 ∈ ℤ
3130a1i 11 . . . . . . . . . . 11 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → 2 ∈ ℤ)
32 simplr 781 . . . . . . . . . . 11 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → 𝑝 ∈ ℕ0)
3331, 32zexpcld 14143 . . . . . . . . . 10 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → (2↑𝑝) ∈ ℤ)
3429, 33eqeltrd 2866 . . . . . . . . 9 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) ∈ ℤ)
3534zred 12718 . . . . . . . 8 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) ∈ ℝ)
36 xnn0xr 12600 . . . . . . . . 9 (((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∈ ℕ0* → ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∈ ℝ*)
3726, 27, 363syl 19 . . . . . . . 8 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∈ ℝ*)
38 eqid 2766 . . . . . . . . . . . . 13 (Base‘(ℂflds (lastS‘𝑣))) = (Base‘(ℂflds (lastS‘𝑣)))
39 constrextdg2.1 . . . . . . . . . . . . . . . 16 𝐸 = (ℂflds 𝑒)
40 constrextdg2.2 . . . . . . . . . . . . . . . 16 𝐹 = (ℂflds 𝑓)
41 constrextdg2.l . . . . . . . . . . . . . . . 16 < = {⟨𝑓, 𝑒⟩ ∣ (𝐸/FldExt𝐹 ∧ (𝐸[:]𝐹) = 2)}
42 simplr 781 . . . . . . . . . . . . . . . 16 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → 𝑣 ∈ ( < Chain (SubDRing‘ℂfld)))
43 simprl 783 . . . . . . . . . . . . . . . . 17 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (𝑣‘0) = ℚ)
4443oveq2d 7439 . . . . . . . . . . . . . . . 16 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (ℂflds (𝑣‘0)) = (ℂflds ℚ))
45 eqidd 2767 . . . . . . . . . . . . . . . 16 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (ℂflds (lastS‘𝑣)) = (ℂflds (lastS‘𝑣)))
46 simpr 490 . . . . . . . . . . . . . . . . . . . . 21 ((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑣 = ∅) → 𝑣 = ∅)
4746fveq1d 6890 . . . . . . . . . . . . . . . . . . . 20 ((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑣 = ∅) → (𝑣‘0) = (∅‘0))
48 0fv 6929 . . . . . . . . . . . . . . . . . . . . 21 (∅‘0) = ∅
4948a1i 11 . . . . . . . . . . . . . . . . . . . 20 ((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑣 = ∅) → (∅‘0) = ∅)
5047, 49eqtrd 2801 . . . . . . . . . . . . . . . . . . 19 ((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑣 = ∅) → (𝑣‘0) = ∅)
5143adantr 486 . . . . . . . . . . . . . . . . . . . . 21 ((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑣 = ∅) → (𝑣‘0) = ℚ)
52 1nn 12262 . . . . . . . . . . . . . . . . . . . . . . . 24 1 ∈ ℕ
53 nnq 13004 . . . . . . . . . . . . . . . . . . . . . . . 24 (1 ∈ ℕ → 1 ∈ ℚ)
5452, 53ax-mp 5 . . . . . . . . . . . . . . . . . . . . . . 23 1 ∈ ℚ
5554ne0ii 4300 . . . . . . . . . . . . . . . . . . . . . 22 ℚ ≠ ∅
5655a1i 11 . . . . . . . . . . . . . . . . . . . . 21 ((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑣 = ∅) → ℚ ≠ ∅)
5751, 56eqnetrd 3028 . . . . . . . . . . . . . . . . . . . 20 ((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑣 = ∅) → (𝑣‘0) ≠ ∅)
5857neneqd 2966 . . . . . . . . . . . . . . . . . . 19 ((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑣 = ∅) → ¬ (𝑣‘0) = ∅)
5950, 58pm2.65da 829 . . . . . . . . . . . . . . . . . 18 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → ¬ 𝑣 = ∅)
6059neqned 2968 . . . . . . . . . . . . . . . . 17 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → 𝑣 ≠ ∅)
6142, 60hashne0 33191 . . . . . . . . . . . . . . . 16 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → 0 < (♯‘𝑣))
6239, 40, 41, 42, 10, 44, 45, 61fldext2chn 34149 . . . . . . . . . . . . . . 15 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → ((ℂflds (lastS‘𝑣))/FldExt(ℂflds ℚ) ∧ ∃𝑝 ∈ ℕ0 ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)))
6362simpld 500 . . . . . . . . . . . . . 14 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (ℂflds (lastS‘𝑣))/FldExt(ℂflds ℚ))
64 fldextfld1 34068 . . . . . . . . . . . . . 14 ((ℂflds (lastS‘𝑣))/FldExt(ℂflds ℚ) → (ℂflds (lastS‘𝑣)) ∈ Field)
6563, 64syl 18 . . . . . . . . . . . . 13 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (ℂflds (lastS‘𝑣)) ∈ Field)
6642chnwrd 18689 . . . . . . . . . . . . . . 15 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → 𝑣 ∈ Word (SubDRing‘ℂfld))
67 lswcl 14625 . . . . . . . . . . . . . . 15 ((𝑣 ∈ Word (SubDRing‘ℂfld) ∧ 𝑣 ≠ ∅) → (lastS‘𝑣) ∈ (SubDRing‘ℂfld))
6866, 60, 67syl2anc 596 . . . . . . . . . . . . . 14 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (lastS‘𝑣) ∈ (SubDRing‘ℂfld))
6911a1i 11 . . . . . . . . . . . . . . 15 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → ℂfld ∈ DivRing)
70 qsscn 13002 . . . . . . . . . . . . . . . . . 18 ℚ ⊆ ℂ
7170a1i 11 . . . . . . . . . . . . . . . . 17 (((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) → ℚ ⊆ ℂ)
7271, 23unssd 4148 . . . . . . . . . . . . . . . 16 (((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) → (ℚ ∪ {𝐴}) ⊆ ℂ)
7372ad2antrr 739 . . . . . . . . . . . . . . 15 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (ℚ ∪ {𝐴}) ⊆ ℂ)
746, 69, 73fldgensdrg 33666 . . . . . . . . . . . . . 14 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (ℂfld fldGen (ℚ ∪ {𝐴})) ∈ (SubDRing‘ℂfld))
757qrngbas 27820 . . . . . . . . . . . . . . . . . . 19 ℚ = (Base‘(ℂflds ℚ))
7675, 63fldextsdrg 34075 . . . . . . . . . . . . . . . . . 18 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → ℚ ∈ (SubDRing‘(ℂflds (lastS‘𝑣))))
7738sdrgss 20933 . . . . . . . . . . . . . . . . . 18 (ℚ ∈ (SubDRing‘(ℂflds (lastS‘𝑣))) → ℚ ⊆ (Base‘(ℂflds (lastS‘𝑣))))
7876, 77syl 18 . . . . . . . . . . . . . . . . 17 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → ℚ ⊆ (Base‘(ℂflds (lastS‘𝑣))))
796sdrgss 20933 . . . . . . . . . . . . . . . . . . 19 ((lastS‘𝑣) ∈ (SubDRing‘ℂfld) → (lastS‘𝑣) ⊆ ℂ)
8068, 79syl 18 . . . . . . . . . . . . . . . . . 18 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (lastS‘𝑣) ⊆ ℂ)
81 eqid 2766 . . . . . . . . . . . . . . . . . . 19 (ℂflds (lastS‘𝑣)) = (ℂflds (lastS‘𝑣))
8281, 6ressbas2 17323 . . . . . . . . . . . . . . . . . 18 ((lastS‘𝑣) ⊆ ℂ → (lastS‘𝑣) = (Base‘(ℂflds (lastS‘𝑣))))
8380, 82syl 18 . . . . . . . . . . . . . . . . 17 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (lastS‘𝑣) = (Base‘(ℂflds (lastS‘𝑣))))
8478, 83sseqtrrd 3977 . . . . . . . . . . . . . . . 16 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → ℚ ⊆ (lastS‘𝑣))
85 simprr 785 . . . . . . . . . . . . . . . . . 18 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (𝐶𝑚) ⊆ (lastS‘𝑣))
86 simpllr 788 . . . . . . . . . . . . . . . . . 18 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → 𝐴 ∈ (𝐶𝑚))
8785, 86sseldd 3941 . . . . . . . . . . . . . . . . 17 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → 𝐴 ∈ (lastS‘𝑣))
8887snssd 4757 . . . . . . . . . . . . . . . 16 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → {𝐴} ⊆ (lastS‘𝑣))
8984, 88unssd 4148 . . . . . . . . . . . . . . 15 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (ℚ ∪ {𝐴}) ⊆ (lastS‘𝑣))
906, 69, 68, 89fldgenssp 33670 . . . . . . . . . . . . . 14 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (ℂfld fldGen (ℚ ∪ {𝐴})) ⊆ (lastS‘𝑣))
91 id 23 . . . . . . . . . . . . . . . 16 ((lastS‘𝑣) ∈ (SubDRing‘ℂfld) → (lastS‘𝑣) ∈ (SubDRing‘ℂfld))
9281, 91subsdrg 33650 . . . . . . . . . . . . . . 15 ((lastS‘𝑣) ∈ (SubDRing‘ℂfld) → ((ℂfld fldGen (ℚ ∪ {𝐴})) ∈ (SubDRing‘(ℂflds (lastS‘𝑣))) ↔ ((ℂfld fldGen (ℚ ∪ {𝐴})) ∈ (SubDRing‘ℂfld) ∧ (ℂfld fldGen (ℚ ∪ {𝐴})) ⊆ (lastS‘𝑣))))
9392biimpar 483 . . . . . . . . . . . . . 14 (((lastS‘𝑣) ∈ (SubDRing‘ℂfld) ∧ ((ℂfld fldGen (ℚ ∪ {𝐴})) ∈ (SubDRing‘ℂfld) ∧ (ℂfld fldGen (ℚ ∪ {𝐴})) ⊆ (lastS‘𝑣))) → (ℂfld fldGen (ℚ ∪ {𝐴})) ∈ (SubDRing‘(ℂflds (lastS‘𝑣))))
9468, 74, 90, 93syl12anc 850 . . . . . . . . . . . . 13 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (ℂfld fldGen (ℚ ∪ {𝐴})) ∈ (SubDRing‘(ℂflds (lastS‘𝑣))))
9538, 65, 94sdrgfldext 34071 . . . . . . . . . . . 12 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (ℂflds (lastS‘𝑣))/FldExt((ℂflds (lastS‘𝑣)) ↾s (ℂfld fldGen (ℚ ∪ {𝐴}))))
9668elexd 3481 . . . . . . . . . . . . 13 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (lastS‘𝑣) ∈ V)
97 ressabs 17333 . . . . . . . . . . . . 13 (((lastS‘𝑣) ∈ V ∧ (ℂfld fldGen (ℚ ∪ {𝐴})) ⊆ (lastS‘𝑣)) → ((ℂflds (lastS‘𝑣)) ↾s (ℂfld fldGen (ℚ ∪ {𝐴}))) = (ℂflds (ℂfld fldGen (ℚ ∪ {𝐴}))))
9896, 90, 97syl2anc 596 . . . . . . . . . . . 12 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → ((ℂflds (lastS‘𝑣)) ↾s (ℂfld fldGen (ℚ ∪ {𝐴}))) = (ℂflds (ℂfld fldGen (ℚ ∪ {𝐴}))))
9995, 98breqtrd 5142 . . . . . . . . . . 11 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → (ℂflds (lastS‘𝑣))/FldExt(ℂflds (ℂfld fldGen (ℚ ∪ {𝐴}))))
10099ad2antrr 739 . . . . . . . . . 10 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → (ℂflds (lastS‘𝑣))/FldExt(ℂflds (ℂfld fldGen (ℚ ∪ {𝐴}))))
101 extdgcl 34077 . . . . . . . . . 10 ((ℂflds (lastS‘𝑣))/FldExt(ℂflds (ℂfld fldGen (ℚ ∪ {𝐴}))) → ((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ∈ ℕ0*)
102100, 101syl 18 . . . . . . . . 9 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ∈ ℕ0*)
103 xnn0xr 12600 . . . . . . . . 9 (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ∈ ℕ0* → ((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ∈ ℝ*)
104102, 103syl 18 . . . . . . . 8 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ∈ ℝ*)
105 extdggt0 34078 . . . . . . . . 9 ((ℂflds (lastS‘𝑣))/FldExt(ℂflds (ℂfld fldGen (ℚ ∪ {𝐴}))) → 0 < ((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))))
106100, 105syl 18 . . . . . . . 8 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → 0 < ((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))))
107 extdgmul 34084 . . . . . . . . . . 11 (((ℂflds (lastS‘𝑣))/FldExt(ℂflds (ℂfld fldGen (ℚ ∪ {𝐴}))) ∧ (ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))/FldExt(ℂflds ℚ)) → ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ·e ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))))
10899, 25, 107syl2anc 596 . . . . . . . . . 10 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ·e ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))))
109108ad2antrr 739 . . . . . . . . 9 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ·e ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))))
110 xmulcom 13310 . . . . . . . . . 10 ((((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ∈ ℝ* ∧ ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∈ ℝ*) → (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ·e ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))) = (((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ·e ((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴}))))))
111104, 37, 110syl2anc 596 . . . . . . . . 9 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ·e ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))) = (((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ·e ((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴}))))))
112109, 111eqtrd 2801 . . . . . . . 8 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ·e ((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴}))))))
11335, 37, 104, 106, 112rexmul2 33136 . . . . . . 7 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∈ ℝ)
114 extdggt0 34078 . . . . . . . 8 ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))/FldExt(ℂflds ℚ) → 0 < ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)))
11526, 114syl 18 . . . . . . 7 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → 0 < ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)))
11628, 113, 115xnn0nnd 33155 . . . . . 6 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∈ ℕ)
1175, 116eqeltrid 2870 . . . . 5 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → (𝐿[:]𝑄) ∈ ℕ)
11835, 104, 37, 115, 109rexmul2 33136 . . . . . . . . 9 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ∈ ℝ)
119102, 118xnn0nn0d 33154 . . . . . . . 8 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ∈ ℕ0)
120119nn0zd 12634 . . . . . . 7 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ∈ ℤ)
121116nnnn0d 12583 . . . . . . . 8 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∈ ℕ0)
122121nn0zd 12634 . . . . . . 7 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∈ ℤ)
123 rexmul 13315 . . . . . . . . . . 11 ((((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ∈ ℝ ∧ ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∈ ℝ) → (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ·e ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))) = (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) · ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))))
124118, 113, 123syl2anc 596 . . . . . . . . . 10 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ·e ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))) = (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) · ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))))
125109, 124eqtrd 2801 . . . . . . . . 9 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) · ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))))
126125eqcomd 2772 . . . . . . . 8 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) · ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))) = ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)))
127126, 29eqtrd 2801 . . . . . . 7 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) · ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))) = (2↑𝑝))
128 dvds0lem 16349 . . . . . . 7 (((((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) ∈ ℤ ∧ ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∈ ℤ ∧ (2↑𝑝) ∈ ℤ) ∧ (((ℂflds (lastS‘𝑣))[:](ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))) · ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ))) = (2↑𝑝)) → ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∥ (2↑𝑝))
129120, 122, 33, 127, 128syl31anc 1400 . . . . . 6 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ((ℂflds (ℂfld fldGen (ℚ ∪ {𝐴})))[:](ℂflds ℚ)) ∥ (2↑𝑝))
1305, 129eqbrtrid 5151 . . . . 5 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → (𝐿[:]𝑄) ∥ (2↑𝑝))
131 dvdsprmpweq 16969 . . . . . 6 ((2 ∈ ℙ ∧ (𝐿[:]𝑄) ∈ ℕ ∧ 𝑝 ∈ ℕ0) → ((𝐿[:]𝑄) ∥ (2↑𝑝) → ∃𝑛 ∈ ℕ0 (𝐿[:]𝑄) = (2↑𝑛)))
132131imp 412 . . . . 5 (((2 ∈ ℙ ∧ (𝐿[:]𝑄) ∈ ℕ ∧ 𝑝 ∈ ℕ0) ∧ (𝐿[:]𝑄) ∥ (2↑𝑝)) → ∃𝑛 ∈ ℕ0 (𝐿[:]𝑄) = (2↑𝑛))
1332, 117, 32, 130, 132syl31anc 1400 . . . 4 (((((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) ∧ 𝑝 ∈ ℕ0) ∧ ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝)) → ∃𝑛 ∈ ℕ0 (𝐿[:]𝑄) = (2↑𝑛))
13462simprd 501 . . . 4 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → ∃𝑝 ∈ ℕ0 ((ℂflds (lastS‘𝑣))[:](ℂflds ℚ)) = (2↑𝑝))
135133, 134r19.29a 3176 . . 3 (((((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) ∧ 𝑣 ∈ ( < Chain (SubDRing‘ℂfld))) ∧ ((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣))) → ∃𝑛 ∈ ℕ0 (𝐿[:]𝑄) = (2↑𝑛))
136 simplr 781 . . . 4 (((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) → 𝑚 ∈ ω)
13718, 39, 40, 41, 136constrextdg2 34170 . . 3 (((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) → ∃𝑣 ∈ ( < Chain (SubDRing‘ℂfld))((𝑣‘0) = ℚ ∧ (𝐶𝑚) ⊆ (lastS‘𝑣)))
138135, 137r19.29a 3176 . 2 (((𝜑𝑚 ∈ ω) ∧ 𝐴 ∈ (𝐶𝑚)) → ∃𝑛 ∈ ℕ0 (𝐿[:]𝑄) = (2↑𝑛))
139 constrext2chnlem.a . . 3 (𝜑𝐴 ∈ Constr)
14018isconstr 34157 . . 3 (𝐴 ∈ Constr ↔ ∃𝑚 ∈ ω 𝐴 ∈ (𝐶𝑚))
141139, 140sylib 221 . 2 (𝜑 → ∃𝑚 ∈ ω 𝐴 ∈ (𝐶𝑚))
142138, 141r19.29a 3176 1 (𝜑 → ∃𝑛 ∈ ℕ0 (𝐿[:]𝑄) = (2↑𝑛))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wa 401  w3o 1102  w3a 1103   = wceq 1570  wcel 2146  wne 2961  wrex 3092  {crab 3419  Vcvv 3458  cun 3906  wss 3908  c0 4289  {csn 4594  {cpr 4596   class class class wbr 5114  {copab 5178  cmpt 5197  Oncon0 6367  cfv 6543  (class class class)co 7423  ωcom 7871  reccrdg 8405  cc 11116  cr 11117  0cc0 11118  1c1 11119   + caddc 11121   · cmul 11123  *cxr 11260   < clt 11261  cmin 11459  cn 12251  2c2 12313  0cn0 12522  0*cxnn0 12595  cz 12609  cq 12990   ·e cxmu 13154  cexp 14117  Word cword 14570  lastSclsw 14619  ccj 15173  cim 15175  abscabs 15311  cdvds 16335  cprime 16754  Basecbs 17294  s cress 17315   Chain cchn 18686  SubRingcsubrg 20705  DivRingcdr 20864  Fieldcfield 20865  SubDRingcsdrg 20926  fldccnfld 21559   fldGen cfldgen 33662  /FldExtcfldext 34059  [:]cextdg 34061  Constrcconstr 34150
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-10 2179  ax-11 2195  ax-12 2216  ax-ext 2738  ax-rep 5243  ax-sep 5262  ax-nul 5274  ax-pow 5341  ax-pr 5409  ax-un 7745  ax-reg 9564  ax-inf2 9620  ax-ac2 10465  ax-cnex 11174  ax-resscn 11175  ax-1cn 11176  ax-icn 11177  ax-addcl 11178  ax-addrcl 11179  ax-mulcl 11180  ax-mulrcl 11181  ax-mulcom 11182  ax-addass 11183  ax-mulass 11184  ax-distr 11185  ax-i2m1 11186  ax-1ne0 11187  ax-1rid 11188  ax-rnegex 11189  ax-rrecex 11190  ax-cnre 11191  ax-pre-lttri 11192  ax-pre-lttrn 11193  ax-pre-ltadd 11194  ax-pre-mulgt0 11195  ax-pre-sup 11196  ax-addf 11197  ax-mulf 11198
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2570  df-eu 2600  df-clab 2745  df-cleq 2758  df-clel 2841  df-nfc 2915  df-ne 2962  df-nel 3068  df-ral 3083  df-rex 3093  df-rmo 3372  df-reu 3373  df-rab 3420  df-v 3460  df-sbc 3748  df-csb 3857  df-dif 3911  df-un 3913  df-in 3915  df-ss 3925  df-pss 3928  df-nul 4290  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-tp 4599  df-op 4601  df-uni 4878  df-int 4918  df-iun 4963  df-iin 4964  df-br 5115  df-opab 5179  df-mpt 5198  df-tr 5224  df-id 5561  df-eprel 5566  df-po 5574  df-so 5575  df-fr 5619  df-se 5620  df-we 5621  df-xp 5672  df-rel 5673  df-cnv 5674  df-co 5675  df-dm 5676  df-rn 5677  df-res 5678  df-ima 5679  df-pred 6309  df-ord 6370  df-on 6371  df-lim 6372  df-suc 6373  df-iota 6499  df-fun 6545  df-fn 6546  df-f 6547  df-f1 6548  df-fo 6549  df-f1o 6550  df-fv 6551  df-isom 6552  df-riota 7380  df-ov 7426  df-oprab 7427  df-mpo 7428  df-of 7687  df-ofr 7688  df-rpss 7733  df-om 7872  df-1st 7995  df-2nd 7996  df-supp 8166  df-tpos 8231  df-frecs 8287  df-wrecs 8318  df-recs 8367  df-rdg 8406  df-1o 8462  df-2o 8463  df-oadd 8466  df-er 8703  df-ec 8705  df-qs 8709  df-map 8835  df-pm 8836  df-ixp 8905  df-en 8953  df-dom 8954  df-sdom 8955  df-fin 8956  df-fsupp 9332  df-sup 9412  df-inf 9413  df-oi 9482  df-r1 9746  df-rank 9747  df-scott 9868  df-dju 9906  df-card 9944  df-acn 9947  df-ac 10119  df-pnf 11263  df-mnf 11264  df-xr 11265  df-ltxr 11266  df-le 11267  df-sub 11461  df-neg 11462  df-div 11890  df-nn 12252  df-2 12321  df-3 12322  df-4 12323  df-5 12324  df-6 12325  df-7 12326  df-8 12327  df-9 12328  df-n0 12523  df-xnn0 12596  df-z 12610  df-dec 12730  df-uz 12881  df-q 12991  df-rp 13035  df-xneg 13155  df-xmul 13157  df-ico 13396  df-fz 13554  df-fzo 13702  df-fl 13845  df-mod 13923  df-seq 14058  df-exp 14118  df-hash 14387  df-word 14571  df-lsw 14620  df-concat 14628  df-s1 14655  df-substr 14701  df-pfx 14733  df-cj 15176  df-re 15177  df-im 15178  df-sqrt 15312  df-abs 15313  df-dvds 16336  df-gcd 16578  df-prm 16755  df-pc 16922  df-struct 17232  df-sets 17249  df-slot 17267  df-ndx 17279  df-base 17295  df-ress 17316  df-plusg 17348  df-mulr 17349  df-starv 17350  df-sca 17351  df-vsca 17352  df-ip 17353  df-tset 17354  df-ple 17355  df-ocomp 17356  df-ds 17357  df-unif 17358  df-hom 17359  df-cco 17360  df-0g 17519  df-gsum 17520  df-prds 17525  df-pws 17527  df-imas 17587  df-qus 17588  df-mre 17663  df-mrc 17664  df-mri 17665  df-acs 17666  df-proset 18375  df-drs 18376  df-poset 18394  df-ipo 18609  df-chn 18687  df-mgm 18723  df-sgrp 18806  df-mnd 18822  df-mhm 18872  df-submnd 18873  df-grp 19034  df-minusg 19035  df-sbg 19036  df-mulg 19165  df-subg 19220  df-nsg 19221  df-eqg 19222  df-ghm 19315  df-gim 19360  df-cntz 19418  df-oppg 19447  df-lsm 19737  df-cmn 19883  df-abl 19884  df-mgp 20248  df-rng 20262  df-ur 20295  df-srg 20300  df-ring 20348  df-cring 20349  df-oppr 20452  df-dvdsr 20472  df-unit 20473  df-irred 20474  df-invr 20503  df-dvr 20516  df-rhm 20587  df-nzr 20647  df-subrng 20682  df-subrg 20706  df-rlreg 20830  df-domn 20831  df-idom 20832  df-drng 20866  df-field 20867  df-sdrg 20927  df-lmod 21020  df-lss 21090  df-lsp 21130  df-lmhm 21180  df-lmim 21181  df-lmic 21182  df-lbs 21233  df-lvec 21261  df-sra 21331  df-rgmod 21332  df-lidl 21369  df-rsp 21370  df-2idl 21426  df-lpidl 21527  df-lpir 21528  df-pid 21542  df-cnfld 21560  df-dsmm 21919  df-frlm 21934  df-uvc 21970  df-lindf 21993  df-linds 21994  df-assa 22040  df-asp 22041  df-ascl 22042  df-psr 22096  df-mvr 22097  df-mpl 22098  df-opsr 22100  df-evls 22262  df-evl 22263  df-psr1 22377  df-vr1 22378  df-ply1 22379  df-coe1 22380  df-evls1 22512  df-evl1 22513  df-mdeg 26249  df-deg1 26250  df-mon1 26325  df-uc1p 26326  df-q1p 26327  df-r1p 26328  df-ig1p 26329  df-fldgen 33663  df-mxidl 33774  df-dim 34021  df-fldext 34062  df-extdg 34063  df-irng 34105  df-minply 34121  df-constr 34151
This theorem is used by:  constrext2chn  34180
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