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Theorem pwfseq 9524
Description: The powerset of a Dedekind-infinite set does not inject into the set of finite sequences. The proof is due to Halbeisen and Shelah. Proposition 1.7 of [KanamoriPincus] p. 418. (Contributed by Mario Carneiro, 31-May-2015.)
Assertion
Ref Expression
pwfseq (ω ≼ 𝐴 → ¬ 𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛))
Distinct variable group:   𝐴,𝑛

Proof of Theorem pwfseq
Dummy variables 𝑓 𝑏 𝑔 𝑘 𝑚 𝑝 𝑟 𝑠 𝑡 𝑢 𝑤 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 reldom 8003 . . 3 Rel ≼
21brrelex2i 5193 . 2 (ω ≼ 𝐴𝐴 ∈ V)
3 domeng 8011 . . 3 (𝐴 ∈ V → (ω ≼ 𝐴 ↔ ∃𝑡(ω ≈ 𝑡𝑡𝐴)))
4 bren 8006 . . . . . 6 (ω ≈ 𝑡 ↔ ∃ :ω–1-1-onto𝑡)
5 harcl 8507 . . . . . . . . . 10 (har‘𝒫 𝐴) ∈ On
6 infxpenc2 8883 . . . . . . . . . 10 ((har‘𝒫 𝐴) ∈ On → ∃𝑚𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏))
75, 6ax-mp 5 . . . . . . . . 9 𝑚𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏)
8 simpr 476 . . . . . . . . . . . . . . . 16 ((((:ω–1-1-onto𝑡𝑡𝐴) ∧ ∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏)) ∧ 𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛)) → 𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛))
9 oveq2 6698 . . . . . . . . . . . . . . . . . 18 (𝑛 = 𝑘 → (𝐴𝑚 𝑛) = (𝐴𝑚 𝑘))
109cbviunv 4591 . . . . . . . . . . . . . . . . 17 𝑛 ∈ ω (𝐴𝑚 𝑛) = 𝑘 ∈ ω (𝐴𝑚 𝑘)
11 f1eq3 6136 . . . . . . . . . . . . . . . . 17 ( 𝑛 ∈ ω (𝐴𝑚 𝑛) = 𝑘 ∈ ω (𝐴𝑚 𝑘) → (𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛) ↔ 𝑔:𝒫 𝐴1-1 𝑘 ∈ ω (𝐴𝑚 𝑘)))
1210, 11ax-mp 5 . . . . . . . . . . . . . . . 16 (𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛) ↔ 𝑔:𝒫 𝐴1-1 𝑘 ∈ ω (𝐴𝑚 𝑘))
138, 12sylib 208 . . . . . . . . . . . . . . 15 ((((:ω–1-1-onto𝑡𝑡𝐴) ∧ ∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏)) ∧ 𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛)) → 𝑔:𝒫 𝐴1-1 𝑘 ∈ ω (𝐴𝑚 𝑘))
14 simpllr 815 . . . . . . . . . . . . . . 15 ((((:ω–1-1-onto𝑡𝑡𝐴) ∧ ∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏)) ∧ 𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛)) → 𝑡𝐴)
15 simplll 813 . . . . . . . . . . . . . . 15 ((((:ω–1-1-onto𝑡𝑡𝐴) ∧ ∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏)) ∧ 𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛)) → :ω–1-1-onto𝑡)
16 biid 251 . . . . . . . . . . . . . . 15 (((𝑢𝐴𝑟 ⊆ (𝑢 × 𝑢) ∧ 𝑟 We 𝑢) ∧ ω ≼ 𝑢) ↔ ((𝑢𝐴𝑟 ⊆ (𝑢 × 𝑢) ∧ 𝑟 We 𝑢) ∧ ω ≼ 𝑢))
17 simplr 807 . . . . . . . . . . . . . . . 16 ((((:ω–1-1-onto𝑡𝑡𝐴) ∧ ∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏)) ∧ 𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛)) → ∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏))
18 sseq2 3660 . . . . . . . . . . . . . . . . . 18 (𝑏 = 𝑤 → (ω ⊆ 𝑏 ↔ ω ⊆ 𝑤))
19 fveq2 6229 . . . . . . . . . . . . . . . . . . . 20 (𝑏 = 𝑤 → (𝑚𝑏) = (𝑚𝑤))
20 f1oeq1 6165 . . . . . . . . . . . . . . . . . . . 20 ((𝑚𝑏) = (𝑚𝑤) → ((𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏 ↔ (𝑚𝑤):(𝑏 × 𝑏)–1-1-onto𝑏))
2119, 20syl 17 . . . . . . . . . . . . . . . . . . 19 (𝑏 = 𝑤 → ((𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏 ↔ (𝑚𝑤):(𝑏 × 𝑏)–1-1-onto𝑏))
22 xpeq12 5168 . . . . . . . . . . . . . . . . . . . . 21 ((𝑏 = 𝑤𝑏 = 𝑤) → (𝑏 × 𝑏) = (𝑤 × 𝑤))
2322anidms 678 . . . . . . . . . . . . . . . . . . . 20 (𝑏 = 𝑤 → (𝑏 × 𝑏) = (𝑤 × 𝑤))
24 f1oeq2 6166 . . . . . . . . . . . . . . . . . . . 20 ((𝑏 × 𝑏) = (𝑤 × 𝑤) → ((𝑚𝑤):(𝑏 × 𝑏)–1-1-onto𝑏 ↔ (𝑚𝑤):(𝑤 × 𝑤)–1-1-onto𝑏))
2523, 24syl 17 . . . . . . . . . . . . . . . . . . 19 (𝑏 = 𝑤 → ((𝑚𝑤):(𝑏 × 𝑏)–1-1-onto𝑏 ↔ (𝑚𝑤):(𝑤 × 𝑤)–1-1-onto𝑏))
26 f1oeq3 6167 . . . . . . . . . . . . . . . . . . 19 (𝑏 = 𝑤 → ((𝑚𝑤):(𝑤 × 𝑤)–1-1-onto𝑏 ↔ (𝑚𝑤):(𝑤 × 𝑤)–1-1-onto𝑤))
2721, 25, 263bitrd 294 . . . . . . . . . . . . . . . . . 18 (𝑏 = 𝑤 → ((𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏 ↔ (𝑚𝑤):(𝑤 × 𝑤)–1-1-onto𝑤))
2818, 27imbi12d 333 . . . . . . . . . . . . . . . . 17 (𝑏 = 𝑤 → ((ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏) ↔ (ω ⊆ 𝑤 → (𝑚𝑤):(𝑤 × 𝑤)–1-1-onto𝑤)))
2928cbvralv 3201 . . . . . . . . . . . . . . . 16 (∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏) ↔ ∀𝑤 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑤 → (𝑚𝑤):(𝑤 × 𝑤)–1-1-onto𝑤))
3017, 29sylib 208 . . . . . . . . . . . . . . 15 ((((:ω–1-1-onto𝑡𝑡𝐴) ∧ ∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏)) ∧ 𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛)) → ∀𝑤 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑤 → (𝑚𝑤):(𝑤 × 𝑤)–1-1-onto𝑤))
31 eqid 2651 . . . . . . . . . . . . . . 15 OrdIso(𝑟, 𝑢) = OrdIso(𝑟, 𝑢)
32 eqid 2651 . . . . . . . . . . . . . . 15 (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩) = (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩)
33 eqid 2651 . . . . . . . . . . . . . . 15 ((OrdIso(𝑟, 𝑢) ∘ (𝑚‘dom OrdIso(𝑟, 𝑢))) ∘ (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩)) = ((OrdIso(𝑟, 𝑢) ∘ (𝑚‘dom OrdIso(𝑟, 𝑢))) ∘ (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩))
34 eqid 2651 . . . . . . . . . . . . . . 15 seq𝜔((𝑝 ∈ V, 𝑓 ∈ V ↦ (𝑥 ∈ (𝑢𝑚 suc 𝑝) ↦ ((𝑓‘(𝑥𝑝))((OrdIso(𝑟, 𝑢) ∘ (𝑚‘dom OrdIso(𝑟, 𝑢))) ∘ (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩))(𝑥𝑝)))), {⟨∅, (OrdIso(𝑟, 𝑢)‘∅)⟩}) = seq𝜔((𝑝 ∈ V, 𝑓 ∈ V ↦ (𝑥 ∈ (𝑢𝑚 suc 𝑝) ↦ ((𝑓‘(𝑥𝑝))((OrdIso(𝑟, 𝑢) ∘ (𝑚‘dom OrdIso(𝑟, 𝑢))) ∘ (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩))(𝑥𝑝)))), {⟨∅, (OrdIso(𝑟, 𝑢)‘∅)⟩})
35 oveq2 6698 . . . . . . . . . . . . . . . . 17 (𝑛 = 𝑘 → (𝑢𝑚 𝑛) = (𝑢𝑚 𝑘))
3635cbviunv 4591 . . . . . . . . . . . . . . . 16 𝑛 ∈ ω (𝑢𝑚 𝑛) = 𝑘 ∈ ω (𝑢𝑚 𝑘)
37 mpteq1 4770 . . . . . . . . . . . . . . . 16 ( 𝑛 ∈ ω (𝑢𝑚 𝑛) = 𝑘 ∈ ω (𝑢𝑚 𝑘) → (𝑦 𝑛 ∈ ω (𝑢𝑚 𝑛) ↦ ⟨dom 𝑦, ((seq𝜔((𝑝 ∈ V, 𝑓 ∈ V ↦ (𝑥 ∈ (𝑢𝑚 suc 𝑝) ↦ ((𝑓‘(𝑥𝑝))((OrdIso(𝑟, 𝑢) ∘ (𝑚‘dom OrdIso(𝑟, 𝑢))) ∘ (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩))(𝑥𝑝)))), {⟨∅, (OrdIso(𝑟, 𝑢)‘∅)⟩})‘dom 𝑦)‘𝑦)⟩) = (𝑦 𝑘 ∈ ω (𝑢𝑚 𝑘) ↦ ⟨dom 𝑦, ((seq𝜔((𝑝 ∈ V, 𝑓 ∈ V ↦ (𝑥 ∈ (𝑢𝑚 suc 𝑝) ↦ ((𝑓‘(𝑥𝑝))((OrdIso(𝑟, 𝑢) ∘ (𝑚‘dom OrdIso(𝑟, 𝑢))) ∘ (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩))(𝑥𝑝)))), {⟨∅, (OrdIso(𝑟, 𝑢)‘∅)⟩})‘dom 𝑦)‘𝑦)⟩))
3836, 37ax-mp 5 . . . . . . . . . . . . . . 15 (𝑦 𝑛 ∈ ω (𝑢𝑚 𝑛) ↦ ⟨dom 𝑦, ((seq𝜔((𝑝 ∈ V, 𝑓 ∈ V ↦ (𝑥 ∈ (𝑢𝑚 suc 𝑝) ↦ ((𝑓‘(𝑥𝑝))((OrdIso(𝑟, 𝑢) ∘ (𝑚‘dom OrdIso(𝑟, 𝑢))) ∘ (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩))(𝑥𝑝)))), {⟨∅, (OrdIso(𝑟, 𝑢)‘∅)⟩})‘dom 𝑦)‘𝑦)⟩) = (𝑦 𝑘 ∈ ω (𝑢𝑚 𝑘) ↦ ⟨dom 𝑦, ((seq𝜔((𝑝 ∈ V, 𝑓 ∈ V ↦ (𝑥 ∈ (𝑢𝑚 suc 𝑝) ↦ ((𝑓‘(𝑥𝑝))((OrdIso(𝑟, 𝑢) ∘ (𝑚‘dom OrdIso(𝑟, 𝑢))) ∘ (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩))(𝑥𝑝)))), {⟨∅, (OrdIso(𝑟, 𝑢)‘∅)⟩})‘dom 𝑦)‘𝑦)⟩)
39 eqid 2651 . . . . . . . . . . . . . . 15 (𝑥 ∈ ω, 𝑦𝑢 ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑥), 𝑦⟩) = (𝑥 ∈ ω, 𝑦𝑢 ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑥), 𝑦⟩)
40 eqid 2651 . . . . . . . . . . . . . . 15 ((((OrdIso(𝑟, 𝑢) ∘ (𝑚‘dom OrdIso(𝑟, 𝑢))) ∘ (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩)) ∘ (𝑥 ∈ ω, 𝑦𝑢 ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑥), 𝑦⟩)) ∘ (𝑦 𝑛 ∈ ω (𝑢𝑚 𝑛) ↦ ⟨dom 𝑦, ((seq𝜔((𝑝 ∈ V, 𝑓 ∈ V ↦ (𝑥 ∈ (𝑢𝑚 suc 𝑝) ↦ ((𝑓‘(𝑥𝑝))((OrdIso(𝑟, 𝑢) ∘ (𝑚‘dom OrdIso(𝑟, 𝑢))) ∘ (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩))(𝑥𝑝)))), {⟨∅, (OrdIso(𝑟, 𝑢)‘∅)⟩})‘dom 𝑦)‘𝑦)⟩)) = ((((OrdIso(𝑟, 𝑢) ∘ (𝑚‘dom OrdIso(𝑟, 𝑢))) ∘ (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩)) ∘ (𝑥 ∈ ω, 𝑦𝑢 ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑥), 𝑦⟩)) ∘ (𝑦 𝑛 ∈ ω (𝑢𝑚 𝑛) ↦ ⟨dom 𝑦, ((seq𝜔((𝑝 ∈ V, 𝑓 ∈ V ↦ (𝑥 ∈ (𝑢𝑚 suc 𝑝) ↦ ((𝑓‘(𝑥𝑝))((OrdIso(𝑟, 𝑢) ∘ (𝑚‘dom OrdIso(𝑟, 𝑢))) ∘ (𝑠 ∈ dom OrdIso(𝑟, 𝑢), 𝑧 ∈ dom OrdIso(𝑟, 𝑢) ↦ ⟨(OrdIso(𝑟, 𝑢)‘𝑠), (OrdIso(𝑟, 𝑢)‘𝑧)⟩))(𝑥𝑝)))), {⟨∅, (OrdIso(𝑟, 𝑢)‘∅)⟩})‘dom 𝑦)‘𝑦)⟩))
4113, 14, 15, 16, 30, 31, 32, 33, 34, 38, 39, 40pwfseqlem5 9523 . . . . . . . . . . . . . 14 ¬ (((:ω–1-1-onto𝑡𝑡𝐴) ∧ ∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏)) ∧ 𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛))
4241imnani 438 . . . . . . . . . . . . 13 (((:ω–1-1-onto𝑡𝑡𝐴) ∧ ∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏)) → ¬ 𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛))
4342nexdv 1904 . . . . . . . . . . . 12 (((:ω–1-1-onto𝑡𝑡𝐴) ∧ ∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏)) → ¬ ∃𝑔 𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛))
44 brdomi 8008 . . . . . . . . . . . 12 (𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛) → ∃𝑔 𝑔:𝒫 𝐴1-1 𝑛 ∈ ω (𝐴𝑚 𝑛))
4543, 44nsyl 135 . . . . . . . . . . 11 (((:ω–1-1-onto𝑡𝑡𝐴) ∧ ∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏)) → ¬ 𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛))
4645ex 449 . . . . . . . . . 10 ((:ω–1-1-onto𝑡𝑡𝐴) → (∀𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏) → ¬ 𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛)))
4746exlimdv 1901 . . . . . . . . 9 ((:ω–1-1-onto𝑡𝑡𝐴) → (∃𝑚𝑏 ∈ (har‘𝒫 𝐴)(ω ⊆ 𝑏 → (𝑚𝑏):(𝑏 × 𝑏)–1-1-onto𝑏) → ¬ 𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛)))
487, 47mpi 20 . . . . . . . 8 ((:ω–1-1-onto𝑡𝑡𝐴) → ¬ 𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛))
4948ex 449 . . . . . . 7 (:ω–1-1-onto𝑡 → (𝑡𝐴 → ¬ 𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛)))
5049exlimiv 1898 . . . . . 6 (∃ :ω–1-1-onto𝑡 → (𝑡𝐴 → ¬ 𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛)))
514, 50sylbi 207 . . . . 5 (ω ≈ 𝑡 → (𝑡𝐴 → ¬ 𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛)))
5251imp 444 . . . 4 ((ω ≈ 𝑡𝑡𝐴) → ¬ 𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛))
5352exlimiv 1898 . . 3 (∃𝑡(ω ≈ 𝑡𝑡𝐴) → ¬ 𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛))
543, 53syl6bi 243 . 2 (𝐴 ∈ V → (ω ≼ 𝐴 → ¬ 𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛)))
552, 54mpcom 38 1 (ω ≼ 𝐴 → ¬ 𝒫 𝐴 𝑛 ∈ ω (𝐴𝑚 𝑛))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 196  wa 383  w3a 1054   = wceq 1523  wex 1744  wcel 2030  wral 2941  Vcvv 3231  wss 3607  c0 3948  𝒫 cpw 4191  {csn 4210  cop 4216   ciun 4552   class class class wbr 4685  cmpt 4762   We wwe 5101   × cxp 5141  ccnv 5142  dom cdm 5143  cres 5145  ccom 5147  Oncon0 5761  suc csuc 5763  1-1wf1 5923  1-1-ontowf1o 5925  cfv 5926  (class class class)co 6690  cmpt2 6692  ωcom 7107  seq𝜔cseqom 7587  𝑚 cmap 7899  cen 7994  cdom 7995  OrdIsocoi 8455  harchar 8502
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1762  ax-4 1777  ax-5 1879  ax-6 1945  ax-7 1981  ax-8 2032  ax-9 2039  ax-10 2059  ax-11 2074  ax-12 2087  ax-13 2282  ax-ext 2631  ax-rep 4804  ax-sep 4814  ax-nul 4822  ax-pow 4873  ax-pr 4936  ax-un 6991  ax-inf2 8576
This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1055  df-3an 1056  df-tru 1526  df-fal 1529  df-ex 1745  df-nf 1750  df-sb 1938  df-eu 2502  df-mo 2503  df-clab 2638  df-cleq 2644  df-clel 2647  df-nfc 2782  df-ne 2824  df-ral 2946  df-rex 2947  df-reu 2948  df-rmo 2949  df-rab 2950  df-v 3233  df-sbc 3469  df-csb 3567  df-dif 3610  df-un 3612  df-in 3614  df-ss 3621  df-pss 3623  df-nul 3949  df-if 4120  df-pw 4193  df-sn 4211  df-pr 4213  df-tp 4215  df-op 4217  df-uni 4469  df-int 4508  df-iun 4554  df-br 4686  df-opab 4746  df-mpt 4763  df-tr 4786  df-id 5053  df-eprel 5058  df-po 5064  df-so 5065  df-fr 5102  df-se 5103  df-we 5104  df-xp 5149  df-rel 5150  df-cnv 5151  df-co 5152  df-dm 5153  df-rn 5154  df-res 5155  df-ima 5156  df-pred 5718  df-ord 5764  df-on 5765  df-lim 5766  df-suc 5767  df-iota 5889  df-fun 5928  df-fn 5929  df-f 5930  df-f1 5931  df-fo 5932  df-f1o 5933  df-fv 5934  df-isom 5935  df-riota 6651  df-ov 6693  df-oprab 6694  df-mpt2 6695  df-om 7108  df-1st 7210  df-2nd 7211  df-supp 7341  df-wrecs 7452  df-recs 7513  df-rdg 7551  df-seqom 7588  df-1o 7605  df-2o 7606  df-oadd 7609  df-omul 7610  df-oexp 7611  df-er 7787  df-map 7901  df-en 7998  df-dom 7999  df-sdom 8000  df-fin 8001  df-fsupp 8317  df-oi 8456  df-har 8504  df-cnf 8597  df-card 8803
This theorem is referenced by:  pwxpndom2  9525
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