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| Mirrors > Home > MPE Home > Th. List > cnfldds | Structured version Visualization version GIF version | ||
| Description: The metric of the field of complex numbers. (Contributed by Mario Carneiro, 14-Aug-2015.) (Revised by Mario Carneiro, 6-Oct-2015.) (Revised by Thierry Arnoux, 17-Dec-2017.) Revise df-cnfld 21694. (Revised by GG, 31-Mar-2025.) |
| Ref | Expression |
|---|---|
| cnfldds | ⊢ (abs ∘ − ) = (dist‘ℂfld) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | absf 15520 | . . . 4 ⊢ abs:ℂ⟶ℝ | |
| 2 | subf 11572 | . . . 4 ⊢ − :(ℂ × ℂ)⟶ℂ | |
| 3 | fco 6745 | . . . 4 ⊢ ((abs:ℂ⟶ℝ ∧ − :(ℂ × ℂ)⟶ℂ) → (abs ∘ − ):(ℂ × ℂ)⟶ℝ) | |
| 4 | 1, 2, 3 | mp2an 705 | . . 3 ⊢ (abs ∘ − ):(ℂ × ℂ)⟶ℝ |
| 5 | cnex 11294 | . . . 4 ⊢ ℂ ∈ V | |
| 6 | 5, 5 | xpex 7777 | . . 3 ⊢ (ℂ × ℂ) ∈ V |
| 7 | reex 11304 | . . 3 ⊢ ℝ ∈ V | |
| 8 | fex2 7958 | . . 3 ⊢ (((abs ∘ − ):(ℂ × ℂ)⟶ℝ ∧ (ℂ × ℂ) ∈ V ∧ ℝ ∈ V) → (abs ∘ − ) ∈ V) | |
| 9 | 4, 6, 7, 8 | mp3an 1490 | . 2 ⊢ (abs ∘ − ) ∈ V |
| 10 | cnfldstr 21695 | . . 3 ⊢ ℂfld Struct 〈1, ;13〉 | |
| 11 | dsid 17572 | . . 3 ⊢ dist = Slot (dist‘ndx) | |
| 12 | snsstp3 4777 | . . . 4 ⊢ {〈(dist‘ndx), (abs ∘ − )〉} ⊆ {〈(TopSet‘ndx), (MetOpen‘(abs ∘ − ))〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), (abs ∘ − )〉} | |
| 13 | ssun1 4179 | . . . . 5 ⊢ {〈(TopSet‘ndx), (MetOpen‘(abs ∘ − ))〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), (abs ∘ − )〉} ⊆ ({〈(TopSet‘ndx), (MetOpen‘(abs ∘ − ))〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), (abs ∘ − )〉} ∪ {〈(UnifSet‘ndx), (metUnif‘(abs ∘ − ))〉}) | |
| 14 | ssun2 4180 | . . . . . 6 ⊢ ({〈(TopSet‘ndx), (MetOpen‘(abs ∘ − ))〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), (abs ∘ − )〉} ∪ {〈(UnifSet‘ndx), (metUnif‘(abs ∘ − ))〉}) ⊆ (({〈(Base‘ndx), ℂ〉, 〈(+g‘ndx), (𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 + 𝑣))〉, 〈(.r‘ndx), (𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))〉} ∪ {〈(*𝑟‘ndx), ∗〉}) ∪ ({〈(TopSet‘ndx), (MetOpen‘(abs ∘ − ))〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), (abs ∘ − )〉} ∪ {〈(UnifSet‘ndx), (metUnif‘(abs ∘ − ))〉})) | |
| 15 | df-cnfld 21694 | . . . . . 6 ⊢ ℂfld = (({〈(Base‘ndx), ℂ〉, 〈(+g‘ndx), (𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 + 𝑣))〉, 〈(.r‘ndx), (𝑢 ∈ ℂ, 𝑣 ∈ ℂ ↦ (𝑢 · 𝑣))〉} ∪ {〈(*𝑟‘ndx), ∗〉}) ∪ ({〈(TopSet‘ndx), (MetOpen‘(abs ∘ − ))〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), (abs ∘ − )〉} ∪ {〈(UnifSet‘ndx), (metUnif‘(abs ∘ − ))〉})) | |
| 16 | 14, 15 | sseqtrri 3962 | . . . . 5 ⊢ ({〈(TopSet‘ndx), (MetOpen‘(abs ∘ − ))〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), (abs ∘ − )〉} ∪ {〈(UnifSet‘ndx), (metUnif‘(abs ∘ − ))〉}) ⊆ ℂfld |
| 17 | 13, 16 | sstri 3922 | . . . 4 ⊢ {〈(TopSet‘ndx), (MetOpen‘(abs ∘ − ))〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), (abs ∘ − )〉} ⊆ ℂfld |
| 18 | 12, 17 | sstri 3922 | . . 3 ⊢ {〈(dist‘ndx), (abs ∘ − )〉} ⊆ ℂfld |
| 19 | 10, 11, 18 | strfv 17396 | . 2 ⊢ ((abs ∘ − ) ∈ V → (abs ∘ − ) = (dist‘ℂfld)) |
| 20 | 9, 19 | ax-mp 5 | 1 ⊢ (abs ∘ − ) = (dist‘ℂfld) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 ∈ wcel 2146 Vcvv 3454 ∪ cun 4152 {csn 4588 {ctp 4592 〈cop 4838 × cxp 5653 ∘ ccom 5659 ⟶wf 6543 ‘cfv 6547 (class class class)co 7430 ∈ cmpo 7432 ℂcc 11211 ℝcr 11212 1c1 11214 + caddc 11216 · cmul 11218 ≤ cle 11357 − cmin 11554 3c3 12411 ;cdc 12827 ∗ccj 15278 abscabs 15416 ndxcnx 17386 Basecbs 17402 +gcplusg 17443 .rcmulr 17444 *𝑟cstv 17445 TopSetcts 17449 lecple 17450 distcds 17452 UnifSetcunif 17453 MetOpencmopn 21683 metUnifcmetu 21684 ℂfldccnfld 21693 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7761 ax-cnex 11269 ax-resscn 11270 ax-1cn 11271 ax-icn 11272 ax-addcl 11273 ax-addrcl 11274 ax-mulcl 11275 ax-mulrcl 11276 ax-mulcom 11277 ax-addass 11278 ax-mulass 11279 ax-distr 11280 ax-i2m1 11281 ax-1ne0 11282 ax-1rid 11283 ax-rnegex 11284 ax-rrecex 11285 ax-cnre 11286 ax-pre-lttri 11287 ax-pre-lttrn 11288 ax-pre-ltadd 11289 ax-pre-mulgt0 11290 ax-pre-sup 11291 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rmo 3369 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-tp 4593 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-tr 5216 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6311 df-ord 6372 df-on 6373 df-lim 6374 df-suc 6375 df-iota 6501 df-fun 6549 df-fn 6550 df-f 6551 df-f1 6552 df-fo 6553 df-f1o 6554 df-fv 6555 df-riota 7387 df-ov 7433 df-oprab 7434 df-mpo 7435 df-om 7888 df-1st 8011 df-2nd 8012 df-frecs 8313 df-wrecs 8344 df-recs 8393 df-rdg 8432 df-1o 8490 df-er 8731 df-en 8988 df-dom 8989 df-sdom 8990 df-fin 8991 df-sup 9447 df-pnf 11358 df-mnf 11359 df-xr 11360 df-ltxr 11361 df-le 11362 df-sub 11556 df-neg 11557 df-div 11987 df-nn 12349 df-2 12418 df-3 12419 df-4 12420 df-5 12421 df-6 12422 df-7 12423 df-8 12424 df-9 12425 df-n0 12620 df-z 12707 df-dec 12828 df-uz 12979 df-rp 13134 df-fz 13653 df-seq 14158 df-exp 14218 df-cj 15281 df-re 15282 df-im 15283 df-sqrt 15417 df-abs 15418 df-struct 17340 df-slot 17375 df-ndx 17387 df-base 17403 df-plusg 17456 df-mulr 17457 df-starv 17458 df-tset 17462 df-ple 17463 df-ds 17465 df-unif 17466 df-cnfld 21694 |
| This theorem is used by: reds 21937 cnfldms 25109 cnfldnm 25112 cnngp 25113 cncms 25691 cnfldcusp 25693 qqhcn 34679 qqhucn 34680 cnrrext 34698 cnpwstotbnd 38877 repwsmet 38914 rrnequiv 38915 |
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