cncms - Metamath Proof Explorer

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Theorem cncms 25303

Description: The field of complex numbers is a complete metric space. (Contributed by Mario Carneiro, 15-Oct-2015.)

**Assertion**
Ref	Expression
cncms	⊢ ℂ_fld ∈ CMetSp

**Proof of Theorem cncms**
Step	Hyp	Ref	Expression
1		cnfldms 24712	. 2 ⊢ ℂ_fld ∈ MetSp
2		eqid 2728	. . 3 ⊢ (abs ∘ − ) = (abs ∘ − )
3	2	cncmet 25270	. 2 ⊢ (abs ∘ − ) ∈ (CMet‘ℂ)
4		cnfldbas 21290	. . 3 ⊢ ℂ = (Base‘ℂ_fld)
5		cnmet 24708	. . . . . 6 ⊢ (abs ∘ − ) ∈ (Met‘ℂ)
6		metf 24256	. . . . . 6 ⊢ ((abs ∘ − ) ∈ (Met‘ℂ) → (abs ∘ − ):(ℂ × ℂ)⟶ℝ)
7	5, 6	ax-mp 5	. . . . 5 ⊢ (abs ∘ − ):(ℂ × ℂ)⟶ℝ
8		ffn 6727	. . . . 5 ⊢ ((abs ∘ − ):(ℂ × ℂ)⟶ℝ → (abs ∘ − ) Fn (ℂ × ℂ))
9		fnresdm 6679	. . . . 5 ⊢ ((abs ∘ − ) Fn (ℂ × ℂ) → ((abs ∘ − ) ↾ (ℂ × ℂ)) = (abs ∘ − ))
10	7, 8, 9	mp2b 10	. . . 4 ⊢ ((abs ∘ − ) ↾ (ℂ × ℂ)) = (abs ∘ − )
11		cnfldds 21298	. . . . 5 ⊢ (abs ∘ − ) = (dist‘ℂ_fld)
12	11	reseq1i 5985	. . . 4 ⊢ ((abs ∘ − ) ↾ (ℂ × ℂ)) = ((dist‘ℂ_fld) ↾ (ℂ × ℂ))
13	10, 12	eqtr3i 2758	. . 3 ⊢ (abs ∘ − ) = ((dist‘ℂ_fld) ↾ (ℂ × ℂ))
14	4, 13	iscms 25293	. 2 ⊢ (ℂ_fld ∈ CMetSp ↔ (ℂ_fld ∈ MetSp ∧ (abs ∘ − ) ∈ (CMet‘ℂ)))
15	1, 3, 14	mpbir2an 709	1 ⊢ ℂ_fld ∈ CMetSp

Colors of variables: wff setvar class

Syntax hints: = wceq 1533 ∈ wcel 2098 × cxp 5680 ↾ cres 5684 ∘ ccom 5686 Fn wfn 6548 ⟶wf 6549 ‘cfv 6553 ℂcc 11144 ℝcr 11145 − cmin 11482 abscabs 15221 distcds 17249 Metcmet 21272 ℂ_fldccnfld 21286 MetSpcms 24244 CMetccmet 25202 CMetSpccms 25280

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2699 ax-rep 5289 ax-sep 5303 ax-nul 5310 ax-pow 5369 ax-pr 5433 ax-un 7746 ax-cnex 11202 ax-resscn 11203 ax-1cn 11204 ax-icn 11205 ax-addcl 11206 ax-addrcl 11207 ax-mulcl 11208 ax-mulrcl 11209 ax-mulcom 11210 ax-addass 11211 ax-mulass 11212 ax-distr 11213 ax-i2m1 11214 ax-1ne0 11215 ax-1rid 11216 ax-rnegex 11217 ax-rrecex 11218 ax-cnre 11219 ax-pre-lttri 11220 ax-pre-lttrn 11221 ax-pre-ltadd 11222 ax-pre-mulgt0 11223 ax-pre-sup 11224 ax-addf 11225

This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2529 df-eu 2558 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-rmo 3374 df-reu 3375 df-rab 3431 df-v 3475 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4327 df-if 4533 df-pw 4608 df-sn 4633 df-pr 4635 df-tp 4637 df-op 4639 df-uni 4913 df-int 4954 df-iun 5002 df-iin 5003 df-br 5153 df-opab 5215 df-mpt 5236 df-tr 5270 df-id 5580 df-eprel 5586 df-po 5594 df-so 5595 df-fr 5637 df-se 5638 df-we 5639 df-xp 5688 df-rel 5689 df-cnv 5690 df-co 5691 df-dm 5692 df-rn 5693 df-res 5694 df-ima 5695 df-pred 6310 df-ord 6377 df-on 6378 df-lim 6379 df-suc 6380 df-iota 6505 df-fun 6555 df-fn 6556 df-f 6557 df-f1 6558 df-fo 6559 df-f1o 6560 df-fv 6561 df-isom 6562 df-riota 7382 df-ov 7429 df-oprab 7430 df-mpo 7431 df-of 7691 df-om 7877 df-1st 7999 df-2nd 8000 df-supp 8172 df-frecs 8293 df-wrecs 8324 df-recs 8398 df-rdg 8437 df-1o 8493 df-2o 8494 df-er 8731 df-map 8853 df-ixp 8923 df-en 8971 df-dom 8972 df-sdom 8973 df-fin 8974 df-fsupp 9394 df-fi 9442 df-sup 9473 df-inf 9474 df-oi 9541 df-card 9970 df-pnf 11288 df-mnf 11289 df-xr 11290 df-ltxr 11291 df-le 11292 df-sub 11484 df-neg 11485 df-div 11910 df-nn 12251 df-2 12313 df-3 12314 df-4 12315 df-5 12316 df-6 12317 df-7 12318 df-8 12319 df-9 12320 df-n0 12511 df-z 12597 df-dec 12716 df-uz 12861 df-q 12971 df-rp 13015 df-xneg 13132 df-xadd 13133 df-xmul 13134 df-ioo 13368 df-ico 13370 df-icc 13371 df-fz 13525 df-fzo 13668 df-seq 14007 df-exp 14067 df-hash 14330 df-cj 15086 df-re 15087 df-im 15088 df-sqrt 15222 df-abs 15223 df-struct 17123 df-sets 17140 df-slot 17158 df-ndx 17170 df-base 17188 df-ress 17217 df-plusg 17253 df-mulr 17254 df-starv 17255 df-sca 17256 df-vsca 17257 df-ip 17258 df-tset 17259 df-ple 17260 df-ds 17262 df-unif 17263 df-hom 17264 df-cco 17265 df-rest 17411 df-topn 17412 df-0g 17430 df-gsum 17431 df-topgen 17432 df-pt 17433 df-prds 17436 df-xrs 17491 df-qtop 17496 df-imas 17497 df-xps 17499 df-mre 17573 df-mrc 17574 df-acs 17576 df-mgm 18607 df-sgrp 18686 df-mnd 18702 df-submnd 18748 df-mulg 19031 df-cntz 19275 df-cmn 19744 df-psmet 21278 df-xmet 21279 df-met 21280 df-bl 21281 df-mopn 21282 df-fbas 21283 df-fg 21284 df-cnfld 21287 df-top 22816 df-topon 22833 df-topsp 22855 df-bases 22869 df-cld 22943 df-ntr 22944 df-cls 22945 df-nei 23022 df-cn 23151 df-cnp 23152 df-haus 23239 df-cmp 23311 df-tx 23486 df-hmeo 23679 df-fil 23770 df-flim 23863 df-fcls 23865 df-xms 24246 df-ms 24247 df-tms 24248 df-cncf 24818 df-cfil 25203 df-cmet 25205 df-cms 25283

This theorem is referenced by: cnfldcusp 25305 resscdrg 25306 ishl2 25318 csschl 25324 recms 25328

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