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| Mirrors > Home > HSE Home > Th. List > hlim2 | Structured version Visualization version GIF version | ||
| Description: The limit of a sequence on a Hilbert space. (Contributed by NM, 16-Aug-1999.) (Revised by Mario Carneiro, 14-May-2014.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| hlim2 | ⊢ ((𝐹:ℕ⟶ ℋ ∧ 𝐴 ∈ ℋ) → (𝐹 ⇝𝑣 𝐴 ↔ ∀𝑥 ∈ ℝ+ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝐴)) < 𝑥)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | breq2 5112 | . . . . 5 ⊢ (𝑤 = 𝐴 → (𝐹 ⇝𝑣 𝑤 ↔ 𝐹 ⇝𝑣 𝐴)) | |
| 2 | oveq2 7459 | . . . . . . . . 9 ⊢ (𝑤 = 𝐴 → ((𝐹‘𝑧) −ℎ 𝑤) = ((𝐹‘𝑧) −ℎ 𝐴)) | |
| 3 | 2 | fveq2d 6920 | . . . . . . . 8 ⊢ (𝑤 = 𝐴 → (normℎ‘((𝐹‘𝑧) −ℎ 𝑤)) = (normℎ‘((𝐹‘𝑧) −ℎ 𝐴))) |
| 4 | 3 | breq1d 5118 | . . . . . . 7 ⊢ (𝑤 = 𝐴 → ((normℎ‘((𝐹‘𝑧) −ℎ 𝑤)) < 𝑥 ↔ (normℎ‘((𝐹‘𝑧) −ℎ 𝐴)) < 𝑥)) |
| 5 | 4 | rexralbidv 3232 | . . . . . 6 ⊢ (𝑤 = 𝐴 → (∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝑤)) < 𝑥 ↔ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝐴)) < 𝑥)) |
| 6 | 5 | ralbidv 3189 | . . . . 5 ⊢ (𝑤 = 𝐴 → (∀𝑥 ∈ ℝ+ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝑤)) < 𝑥 ↔ ∀𝑥 ∈ ℝ+ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝐴)) < 𝑥)) |
| 7 | 1, 6 | bibi12d 348 | . . . 4 ⊢ (𝑤 = 𝐴 → ((𝐹 ⇝𝑣 𝑤 ↔ ∀𝑥 ∈ ℝ+ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝑤)) < 𝑥) ↔ (𝐹 ⇝𝑣 𝐴 ↔ ∀𝑥 ∈ ℝ+ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝐴)) < 𝑥))) |
| 8 | 7 | imbi2d 343 | . . 3 ⊢ (𝑤 = 𝐴 → ((𝐹:ℕ⟶ ℋ → (𝐹 ⇝𝑣 𝑤 ↔ ∀𝑥 ∈ ℝ+ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝑤)) < 𝑥)) ↔ (𝐹:ℕ⟶ ℋ → (𝐹 ⇝𝑣 𝐴 ↔ ∀𝑥 ∈ ℝ+ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝐴)) < 𝑥)))) |
| 9 | vex 3458 | . . . . . 6 ⊢ 𝑤 ∈ V | |
| 10 | 9 | hlimi 31847 | . . . . 5 ⊢ (𝐹 ⇝𝑣 𝑤 ↔ ((𝐹:ℕ⟶ ℋ ∧ 𝑤 ∈ ℋ) ∧ ∀𝑥 ∈ ℝ+ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝑤)) < 𝑥)) |
| 11 | 10 | baib 545 | . . . 4 ⊢ ((𝐹:ℕ⟶ ℋ ∧ 𝑤 ∈ ℋ) → (𝐹 ⇝𝑣 𝑤 ↔ ∀𝑥 ∈ ℝ+ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝑤)) < 𝑥)) |
| 12 | 11 | expcom 419 | . . 3 ⊢ (𝑤 ∈ ℋ → (𝐹:ℕ⟶ ℋ → (𝐹 ⇝𝑣 𝑤 ↔ ∀𝑥 ∈ ℝ+ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝑤)) < 𝑥))) |
| 13 | 8, 12 | vtoclga 3540 | . 2 ⊢ (𝐴 ∈ ℋ → (𝐹:ℕ⟶ ℋ → (𝐹 ⇝𝑣 𝐴 ↔ ∀𝑥 ∈ ℝ+ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝐴)) < 𝑥))) |
| 14 | 13 | impcom 413 | 1 ⊢ ((𝐹:ℕ⟶ ℋ ∧ 𝐴 ∈ ℋ) → (𝐹 ⇝𝑣 𝐴 ↔ ∀𝑥 ∈ ℝ+ ∃𝑦 ∈ ℕ ∀𝑧 ∈ (ℤ≥‘𝑦)(normℎ‘((𝐹‘𝑧) −ℎ 𝐴)) < 𝑥)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1570 ∈ wcel 2147 ∀wral 3080 ∃wrex 3090 class class class wbr 5108 ⟶wf 6562 ‘cfv 6566 (class class class)co 7451 < clt 11382 ℕcn 12375 ℤ≥cuz 13005 ℝ+crp 13160 ℋchba 31578 normℎcno 31582 −ℎ cmv 31584 ⇝𝑣 chli 31586 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5238 ax-sep 5255 ax-nul 5266 ax-pr 5398 ax-un 7783 ax-cnex 11295 ax-1cn 11297 ax-addcl 11299 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-iun 4958 df-br 5109 df-opab 5174 df-mpt 5193 df-tr 5219 df-id 5553 df-eprel 5558 df-po 5566 df-so 5567 df-fr 5611 df-we 5613 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 df-pred 6330 df-ord 6391 df-on 6392 df-lim 6393 df-suc 6394 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-f1 6571 df-fo 6572 df-f1o 6573 df-fv 6574 df-ov 7454 df-om 7912 df-2nd 8036 df-frecs 8337 df-wrecs 8368 df-recs 8417 df-rdg 8456 df-nn 12376 df-hlim 31631 |
| This theorem is used by: (None) |
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