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| Mirrors > Home > MPE Home > Th. List > Mathboxes > neicvgmex | Structured version Visualization version GIF version | ||
| Description: If the neighborhoods and convergents functions are related, the convergents function exists. (Contributed by RP, 27-Jun-2021.) |
| Ref | Expression |
|---|---|
| neicvg.o | ⊢ 𝑂 = (𝑖 ∈ V, 𝑗 ∈ V ↦ (𝑘 ∈ (𝒫 𝑗 ↑m 𝑖) ↦ (𝑙 ∈ 𝑗 ↦ {𝑚 ∈ 𝑖 ∣ 𝑙 ∈ (𝑘‘𝑚)}))) |
| neicvg.p | ⊢ 𝑃 = (𝑛 ∈ V ↦ (𝑝 ∈ (𝒫 𝑛 ↑m 𝒫 𝑛) ↦ (𝑜 ∈ 𝒫 𝑛 ↦ (𝑛 ∖ (𝑝‘(𝑛 ∖ 𝑜)))))) |
| neicvg.d | ⊢ 𝐷 = (𝑃‘𝐵) |
| neicvg.f | ⊢ 𝐹 = (𝒫 𝐵𝑂𝐵) |
| neicvg.g | ⊢ 𝐺 = (𝐵𝑂𝒫 𝐵) |
| neicvg.h | ⊢ 𝐻 = (𝐹 ∘ (𝐷 ∘ 𝐺)) |
| neicvg.r | ⊢ (𝜑 → 𝑁𝐻𝑀) |
| Ref | Expression |
|---|---|
| neicvgmex | ⊢ (𝜑 → 𝑀 ∈ (𝒫 𝒫 𝐵 ↑m 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | neicvg.o | . 2 ⊢ 𝑂 = (𝑖 ∈ V, 𝑗 ∈ V ↦ (𝑘 ∈ (𝒫 𝑗 ↑m 𝑖) ↦ (𝑙 ∈ 𝑗 ↦ {𝑚 ∈ 𝑖 ∣ 𝑙 ∈ (𝑘‘𝑚)}))) | |
| 2 | neicvg.f | . 2 ⊢ 𝐹 = (𝒫 𝐵𝑂𝐵) | |
| 3 | neicvg.d | . . . . 5 ⊢ 𝐷 = (𝑃‘𝐵) | |
| 4 | neicvg.h | . . . . 5 ⊢ 𝐻 = (𝐹 ∘ (𝐷 ∘ 𝐺)) | |
| 5 | neicvg.r | . . . . 5 ⊢ (𝜑 → 𝑁𝐻𝑀) | |
| 6 | 3, 4, 5 | neicvgbex 44153 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ V) |
| 7 | pwexg 5314 | . . . . . . . 8 ⊢ (𝐵 ∈ V → 𝒫 𝐵 ∈ V) | |
| 8 | 7 | adantl 481 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝐵 ∈ V) → 𝒫 𝐵 ∈ V) |
| 9 | simpr 484 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝐵 ∈ V) → 𝐵 ∈ V) | |
| 10 | 1, 8, 9, 2 | fsovf1od 44057 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐵 ∈ V) → 𝐹:(𝒫 𝐵 ↑m 𝒫 𝐵)–1-1-onto→(𝒫 𝒫 𝐵 ↑m 𝐵)) |
| 11 | f1ofn 6764 | . . . . . 6 ⊢ (𝐹:(𝒫 𝐵 ↑m 𝒫 𝐵)–1-1-onto→(𝒫 𝒫 𝐵 ↑m 𝐵) → 𝐹 Fn (𝒫 𝐵 ↑m 𝒫 𝐵)) | |
| 12 | 10, 11 | syl 17 | . . . . 5 ⊢ ((𝜑 ∧ 𝐵 ∈ V) → 𝐹 Fn (𝒫 𝐵 ↑m 𝒫 𝐵)) |
| 13 | neicvg.p | . . . . . . 7 ⊢ 𝑃 = (𝑛 ∈ V ↦ (𝑝 ∈ (𝒫 𝑛 ↑m 𝒫 𝑛) ↦ (𝑜 ∈ 𝒫 𝑛 ↦ (𝑛 ∖ (𝑝‘(𝑛 ∖ 𝑜)))))) | |
| 14 | 13, 3, 9 | dssmapf1od 44062 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐵 ∈ V) → 𝐷:(𝒫 𝐵 ↑m 𝒫 𝐵)–1-1-onto→(𝒫 𝐵 ↑m 𝒫 𝐵)) |
| 15 | f1of 6763 | . . . . . 6 ⊢ (𝐷:(𝒫 𝐵 ↑m 𝒫 𝐵)–1-1-onto→(𝒫 𝐵 ↑m 𝒫 𝐵) → 𝐷:(𝒫 𝐵 ↑m 𝒫 𝐵)⟶(𝒫 𝐵 ↑m 𝒫 𝐵)) | |
| 16 | 14, 15 | syl 17 | . . . . 5 ⊢ ((𝜑 ∧ 𝐵 ∈ V) → 𝐷:(𝒫 𝐵 ↑m 𝒫 𝐵)⟶(𝒫 𝐵 ↑m 𝒫 𝐵)) |
| 17 | neicvg.g | . . . . . 6 ⊢ 𝐺 = (𝐵𝑂𝒫 𝐵) | |
| 18 | 1, 9, 8, 17 | fsovfd 44053 | . . . . 5 ⊢ ((𝜑 ∧ 𝐵 ∈ V) → 𝐺:(𝒫 𝒫 𝐵 ↑m 𝐵)⟶(𝒫 𝐵 ↑m 𝒫 𝐵)) |
| 19 | 4 | breqi 5095 | . . . . . . 7 ⊢ (𝑁𝐻𝑀 ↔ 𝑁(𝐹 ∘ (𝐷 ∘ 𝐺))𝑀) |
| 20 | 5, 19 | sylib 218 | . . . . . 6 ⊢ (𝜑 → 𝑁(𝐹 ∘ (𝐷 ∘ 𝐺))𝑀) |
| 21 | 20 | adantr 480 | . . . . 5 ⊢ ((𝜑 ∧ 𝐵 ∈ V) → 𝑁(𝐹 ∘ (𝐷 ∘ 𝐺))𝑀) |
| 22 | 12, 16, 18, 21 | brcofffn 44072 | . . . 4 ⊢ ((𝜑 ∧ 𝐵 ∈ V) → (𝑁𝐺(𝐺‘𝑁) ∧ (𝐺‘𝑁)𝐷(𝐷‘(𝐺‘𝑁)) ∧ (𝐷‘(𝐺‘𝑁))𝐹𝑀)) |
| 23 | 6, 22 | mpdan 687 | . . 3 ⊢ (𝜑 → (𝑁𝐺(𝐺‘𝑁) ∧ (𝐺‘𝑁)𝐷(𝐷‘(𝐺‘𝑁)) ∧ (𝐷‘(𝐺‘𝑁))𝐹𝑀)) |
| 24 | 23 | simp3d 1144 | . 2 ⊢ (𝜑 → (𝐷‘(𝐺‘𝑁))𝐹𝑀) |
| 25 | 1, 2, 24 | ntrneinex 44118 | 1 ⊢ (𝜑 → 𝑀 ∈ (𝒫 𝒫 𝐵 ↑m 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1086 = wceq 1541 ∈ wcel 2111 {crab 3395 Vcvv 3436 ∖ cdif 3894 𝒫 cpw 4547 class class class wbr 5089 ↦ cmpt 5170 ∘ ccom 5618 Fn wfn 6476 ⟶wf 6477 –1-1-onto→wf1o 6480 ‘cfv 6481 (class class class)co 7346 ∈ cmpo 7348 ↑m cmap 8750 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-rep 5215 ax-sep 5232 ax-nul 5242 ax-pow 5301 ax-pr 5368 ax-un 7668 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-ral 3048 df-rex 3057 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3737 df-csb 3846 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-nul 4281 df-if 4473 df-pw 4549 df-sn 4574 df-pr 4576 df-op 4580 df-uni 4857 df-iun 4941 df-br 5090 df-opab 5152 df-mpt 5171 df-id 5509 df-xp 5620 df-rel 5621 df-cnv 5622 df-co 5623 df-dm 5624 df-rn 5625 df-res 5626 df-ima 5627 df-iota 6437 df-fun 6483 df-fn 6484 df-f 6485 df-f1 6486 df-fo 6487 df-f1o 6488 df-fv 6489 df-ov 7349 df-oprab 7350 df-mpo 7351 df-1st 7921 df-2nd 7922 df-map 8752 |
| This theorem is referenced by: neicvgnex 44159 |
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