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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 5101 | . . . . 5 ⊢ (𝑤 = 𝐴 → (𝐹 ⇝𝑣 𝑤 ↔ 𝐹 ⇝𝑣 𝐴)) | |
| 2 | oveq2 7399 | . . . . . . . . 9 ⊢ (𝑤 = 𝐴 → ((𝐹‘𝑧) −ℎ 𝑤) = ((𝐹‘𝑧) −ℎ 𝐴)) | |
| 3 | 2 | fveq2d 6866 | . . . . . . . 8 ⊢ (𝑤 = 𝐴 → (normℎ‘((𝐹‘𝑧) −ℎ 𝑤)) = (normℎ‘((𝐹‘𝑧) −ℎ 𝐴))) |
| 4 | 3 | breq1d 5107 | . . . . . . 7 ⊢ (𝑤 = 𝐴 → ((normℎ‘((𝐹‘𝑧) −ℎ 𝑤)) < 𝑥 ↔ (normℎ‘((𝐹‘𝑧) −ℎ 𝐴)) < 𝑥)) |
| 5 | 4 | rexralbidv 3227 | . . . . . 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 3184 | . . . . 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 347 | . . . 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 342 | . . 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 3457 | . . . . . 6 ⊢ 𝑤 ∈ V | |
| 10 | 9 | hlimi 31348 | . . . . 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 543 | . . . 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 417 | . . 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 411 | 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 |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 399 = wceq 1559 ∈ wcel 2141 ∀wral 3075 ∃wrex 3085 class class class wbr 5097 ⟶wf 6512 ‘cfv 6516 (class class class)co 7391 < clt 11210 ℕcn 12204 ℤ≥cuz 12833 ℝ+crp 12987 ℋchba 31079 normℎcno 31083 −ℎ cmv 31085 ⇝𝑣 chli 31087 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5224 ax-sep 5243 ax-nul 5253 ax-pr 5387 ax-un 7713 ax-cnex 11123 ax-1cn 11125 ax-addcl 11127 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-iun 4948 df-br 5098 df-opab 5160 df-mpt 5179 df-tr 5205 df-id 5538 df-eprel 5543 df-po 5551 df-so 5552 df-fr 5596 df-we 5598 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-pred 6283 df-ord 6344 df-on 6345 df-lim 6346 df-suc 6347 df-iota 6472 df-fun 6518 df-fn 6519 df-f 6520 df-f1 6521 df-fo 6522 df-f1o 6523 df-fv 6524 df-ov 7394 df-om 7842 df-2nd 7966 df-frecs 8256 df-wrecs 8287 df-recs 8336 df-rdg 8375 df-nn 12205 df-hlim 31132 |
| This theorem is referenced by: (None) |
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