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| Mirrors > Home > MPE Home > Th. List > limcflflem | Structured version Visualization version GIF version | ||
| Description: Lemma for limcflf 25861. (Contributed by Mario Carneiro, 25-Dec-2016.) |
| Ref | Expression |
|---|---|
| limcflf.f | ⊢ (𝜑 → 𝐹:𝐴⟶ℂ) |
| limcflf.a | ⊢ (𝜑 → 𝐴 ⊆ ℂ) |
| limcflf.b | ⊢ (𝜑 → 𝐵 ∈ ((limPt‘𝐾)‘𝐴)) |
| limcflf.k | ⊢ 𝐾 = (TopOpen‘ℂfld) |
| limcflf.c | ⊢ 𝐶 = (𝐴 ∖ {𝐵}) |
| limcflf.l | ⊢ 𝐿 = (((nei‘𝐾)‘{𝐵}) ↾t 𝐶) |
| Ref | Expression |
|---|---|
| limcflflem | ⊢ (𝜑 → 𝐿 ∈ (Fil‘𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | limcflf.l | . 2 ⊢ 𝐿 = (((nei‘𝐾)‘{𝐵}) ↾t 𝐶) | |
| 2 | limcflf.b | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ ((limPt‘𝐾)‘𝐴)) | |
| 3 | limcflf.k | . . . . . . 7 ⊢ 𝐾 = (TopOpen‘ℂfld) | |
| 4 | 3 | cnfldtop 24761 | . . . . . 6 ⊢ 𝐾 ∈ Top |
| 5 | limcflf.a | . . . . . 6 ⊢ (𝜑 → 𝐴 ⊆ ℂ) | |
| 6 | 3 | cnfldtopon 24760 | . . . . . . . 8 ⊢ 𝐾 ∈ (TopOn‘ℂ) |
| 7 | 6 | toponunii 22894 | . . . . . . 7 ⊢ ℂ = ∪ 𝐾 |
| 8 | 7 | islp 23118 | . . . . . 6 ⊢ ((𝐾 ∈ Top ∧ 𝐴 ⊆ ℂ) → (𝐵 ∈ ((limPt‘𝐾)‘𝐴) ↔ 𝐵 ∈ ((cls‘𝐾)‘(𝐴 ∖ {𝐵})))) |
| 9 | 4, 5, 8 | sylancr 588 | . . . . 5 ⊢ (𝜑 → (𝐵 ∈ ((limPt‘𝐾)‘𝐴) ↔ 𝐵 ∈ ((cls‘𝐾)‘(𝐴 ∖ {𝐵})))) |
| 10 | 2, 9 | mpbid 232 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ ((cls‘𝐾)‘(𝐴 ∖ {𝐵}))) |
| 11 | limcflf.c | . . . . 5 ⊢ 𝐶 = (𝐴 ∖ {𝐵}) | |
| 12 | 11 | fveq2i 6838 | . . . 4 ⊢ ((cls‘𝐾)‘𝐶) = ((cls‘𝐾)‘(𝐴 ∖ {𝐵})) |
| 13 | 10, 12 | eleqtrrdi 2848 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ((cls‘𝐾)‘𝐶)) |
| 14 | difss 4077 | . . . . . 6 ⊢ (𝐴 ∖ {𝐵}) ⊆ 𝐴 | |
| 15 | 11, 14 | eqsstri 3969 | . . . . 5 ⊢ 𝐶 ⊆ 𝐴 |
| 16 | 15, 5 | sstrid 3934 | . . . 4 ⊢ (𝜑 → 𝐶 ⊆ ℂ) |
| 17 | 7 | lpss 23120 | . . . . . 6 ⊢ ((𝐾 ∈ Top ∧ 𝐴 ⊆ ℂ) → ((limPt‘𝐾)‘𝐴) ⊆ ℂ) |
| 18 | 4, 5, 17 | sylancr 588 | . . . . 5 ⊢ (𝜑 → ((limPt‘𝐾)‘𝐴) ⊆ ℂ) |
| 19 | 18, 2 | sseldd 3923 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| 20 | trnei 23870 | . . . 4 ⊢ ((𝐾 ∈ (TopOn‘ℂ) ∧ 𝐶 ⊆ ℂ ∧ 𝐵 ∈ ℂ) → (𝐵 ∈ ((cls‘𝐾)‘𝐶) ↔ (((nei‘𝐾)‘{𝐵}) ↾t 𝐶) ∈ (Fil‘𝐶))) | |
| 21 | 6, 16, 19, 20 | mp3an2i 1469 | . . 3 ⊢ (𝜑 → (𝐵 ∈ ((cls‘𝐾)‘𝐶) ↔ (((nei‘𝐾)‘{𝐵}) ↾t 𝐶) ∈ (Fil‘𝐶))) |
| 22 | 13, 21 | mpbid 232 | . 2 ⊢ (𝜑 → (((nei‘𝐾)‘{𝐵}) ↾t 𝐶) ∈ (Fil‘𝐶)) |
| 23 | 1, 22 | eqeltrid 2841 | 1 ⊢ (𝜑 → 𝐿 ∈ (Fil‘𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 = wceq 1542 ∈ wcel 2114 ∖ cdif 3887 ⊆ wss 3890 {csn 4568 ⟶wf 6489 ‘cfv 6493 (class class class)co 7361 ℂcc 11030 ↾t crest 17377 TopOpenctopn 17378 ℂfldccnfld 21347 Topctop 22871 TopOnctopon 22888 clsccl 22996 neicnei 23075 limPtclp 23112 Filcfil 23823 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5213 ax-sep 5232 ax-nul 5242 ax-pow 5303 ax-pr 5371 ax-un 7683 ax-cnex 11088 ax-resscn 11089 ax-1cn 11090 ax-icn 11091 ax-addcl 11092 ax-addrcl 11093 ax-mulcl 11094 ax-mulrcl 11095 ax-mulcom 11096 ax-addass 11097 ax-mulass 11098 ax-distr 11099 ax-i2m1 11100 ax-1ne0 11101 ax-1rid 11102 ax-rnegex 11103 ax-rrecex 11104 ax-cnre 11105 ax-pre-lttri 11106 ax-pre-lttrn 11107 ax-pre-ltadd 11108 ax-pre-mulgt0 11109 ax-pre-sup 11110 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-tp 4573 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-iin 4937 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7318 df-ov 7364 df-oprab 7365 df-mpo 7366 df-om 7812 df-1st 7936 df-2nd 7937 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-1o 8399 df-er 8637 df-map 8769 df-en 8888 df-dom 8889 df-sdom 8890 df-fin 8891 df-sup 9349 df-inf 9350 df-pnf 11175 df-mnf 11176 df-xr 11177 df-ltxr 11178 df-le 11179 df-sub 11373 df-neg 11374 df-div 11802 df-nn 12169 df-2 12238 df-3 12239 df-4 12240 df-5 12241 df-6 12242 df-7 12243 df-8 12244 df-9 12245 df-n0 12432 df-z 12519 df-dec 12639 df-uz 12783 df-q 12893 df-rp 12937 df-xneg 13057 df-xadd 13058 df-xmul 13059 df-fz 13456 df-seq 13958 df-exp 14018 df-cj 15055 df-re 15056 df-im 15057 df-sqrt 15191 df-abs 15192 df-struct 17111 df-slot 17146 df-ndx 17158 df-base 17174 df-plusg 17227 df-mulr 17228 df-starv 17229 df-tset 17233 df-ple 17234 df-ds 17236 df-unif 17237 df-rest 17379 df-topn 17380 df-topgen 17400 df-psmet 21339 df-xmet 21340 df-met 21341 df-bl 21342 df-mopn 21343 df-fbas 21344 df-cnfld 21348 df-top 22872 df-topon 22889 df-topsp 22911 df-bases 22924 df-cld 22997 df-ntr 22998 df-cls 22999 df-nei 23076 df-lp 23114 df-fil 23824 df-xms 24298 df-ms 24299 |
| This theorem is referenced by: limcflf 25861 limcmo 25862 |
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