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| Mirrors > Home > MPE Home > Th. List > nmcl | Structured version Visualization version GIF version | ||
| Description: The norm of a normed group is closed in the reals. (Contributed by Mario Carneiro, 4-Oct-2015.) |
| Ref | Expression |
|---|---|
| nmf.x | ⊢ 𝑋 = (Base‘𝐺) |
| nmf.n | ⊢ 𝑁 = (norm‘𝐺) |
| Ref | Expression |
|---|---|
| nmcl | ⊢ ((𝐺 ∈ NrmGrp ∧ 𝐴 ∈ 𝑋) → (𝑁‘𝐴) ∈ ℝ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nmf.x | . . 3 ⊢ 𝑋 = (Base‘𝐺) | |
| 2 | nmf.n | . . 3 ⊢ 𝑁 = (norm‘𝐺) | |
| 3 | 1, 2 | nmf 24772 | . 2 ⊢ (𝐺 ∈ NrmGrp → 𝑁:𝑋⟶ℝ) |
| 4 | 3 | ffvelcdmda 7079 | 1 ⊢ ((𝐺 ∈ NrmGrp ∧ 𝐴 ∈ 𝑋) → (𝑁‘𝐴) ∈ ℝ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1570 ∈ wcel 2143 ‘cfv 6536 ℝcr 11094 Basecbs 17264 normcnm 24733 NrmGrpcngp 24734 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5257 ax-nul 5269 ax-pow 5336 ax-pr 5404 ax-un 7732 ax-cnex 11151 ax-resscn 11152 ax-1cn 11153 ax-icn 11154 ax-addcl 11155 ax-addrcl 11156 ax-mulcl 11157 ax-mulrcl 11158 ax-mulcom 11159 ax-addass 11160 ax-mulass 11161 ax-distr 11162 ax-i2m1 11163 ax-1ne0 11164 ax-1rid 11165 ax-rnegex 11166 ax-rrecex 11167 ax-cnre 11168 ax-pre-lttri 11169 ax-pre-lttrn 11170 ax-pre-ltadd 11171 ax-pre-mulgt0 11172 ax-pre-sup 11173 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4488 df-pw 4564 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-iun 4958 df-br 5110 df-opab 5174 df-mpt 5193 df-tr 5219 df-id 5556 df-eprel 5561 df-po 5569 df-so 5570 df-fr 5614 df-we 5616 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-pred 6302 df-ord 6363 df-on 6364 df-lim 6365 df-suc 6366 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7367 df-ov 7413 df-oprab 7414 df-mpo 7415 df-om 7859 df-1st 7982 df-2nd 7983 df-frecs 8274 df-wrecs 8305 df-recs 8354 df-rdg 8393 df-er 8690 df-map 8822 df-en 8940 df-dom 8941 df-sdom 8942 df-sup 9398 df-inf 9399 df-pnf 11240 df-mnf 11241 df-xr 11242 df-ltxr 11243 df-le 11244 df-sub 11438 df-neg 11439 df-div 11867 df-nn 12229 df-2 12298 df-n0 12500 df-z 12587 df-uz 12858 df-q 12968 df-rp 13012 df-xneg 13132 df-xadd 13133 df-xmul 13134 df-0g 17489 df-topgen 17491 df-mgm 18693 df-sgrp 18772 df-mnd 18788 df-grp 18998 df-psmet 21514 df-xmet 21515 df-met 21516 df-bl 21517 df-mopn 21518 df-top 23051 df-topon 23068 df-topsp 23090 df-bases 23103 df-xms 24477 df-ms 24478 df-nm 24739 df-ngp 24740 |
| This theorem is referenced by: nmrpcl 24777 nm2dif 24782 nmgt0 24787 nminvr 24826 nmdvr 24827 nlmmul0or 24840 nlmvscnlem2 24842 nlmvscnlem1 24843 nrginvrcnlem 24848 nmoi 24885 nmoix 24886 nmoi2 24887 nmoleub 24888 nmo0 24892 nmoeq0 24893 nmoco 24894 nmotri 24896 nmoid 24899 nmoleub2lem 25273 nmoleub2lem3 25274 nmoleub2lem2 25275 nmoleub3 25278 nmhmcn 25279 ncvsm1 25313 ncvspi 25315 ncvs1 25316 cphnmf 25354 reipcl 25356 ipge0 25357 ipcnlem2 25403 ipcnlem1 25404 minveclem1 25583 minveclem2 25585 minveclem4 25591 minveclem6 25593 pjthlem1 25596 |
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