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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 24675 | . 2 ⊢ (𝐺 ∈ NrmGrp → 𝑁:𝑋⟶ℝ) |
| 4 | 3 | ffvelcdmda 7065 | 1 ⊢ ((𝐺 ∈ NrmGrp ∧ 𝐴 ∈ 𝑋) → (𝑁‘𝐴) ∈ ℝ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 = wceq 1560 ∈ wcel 2142 ‘cfv 6521 ℝcr 11072 Basecbs 17245 normcnm 24636 NrmGrpcngp 24637 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5246 ax-nul 5256 ax-pow 5322 ax-pr 5390 ax-un 7718 ax-cnex 11129 ax-resscn 11130 ax-1cn 11131 ax-icn 11132 ax-addcl 11133 ax-addrcl 11134 ax-mulcl 11135 ax-mulrcl 11136 ax-mulcom 11137 ax-addass 11138 ax-mulass 11139 ax-distr 11140 ax-i2m1 11141 ax-1ne0 11142 ax-1rid 11143 ax-rnegex 11144 ax-rrecex 11145 ax-cnre 11146 ax-pre-lttri 11147 ax-pre-lttrn 11148 ax-pre-ltadd 11149 ax-pre-mulgt0 11150 ax-pre-sup 11151 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1099 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-nf 1804 df-sb 2091 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3456 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4481 df-pw 4557 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4951 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5542 df-eprel 5547 df-po 5555 df-so 5556 df-fr 5600 df-we 5602 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-pred 6288 df-ord 6349 df-on 6350 df-lim 6351 df-suc 6352 df-iota 6477 df-fun 6523 df-fn 6524 df-f 6525 df-f1 6526 df-fo 6527 df-f1o 6528 df-fv 6529 df-riota 7353 df-ov 7399 df-oprab 7400 df-mpo 7401 df-om 7847 df-1st 7970 df-2nd 7971 df-frecs 8262 df-wrecs 8293 df-recs 8342 df-rdg 8381 df-er 8678 df-map 8810 df-en 8928 df-dom 8929 df-sdom 8930 df-sup 9388 df-inf 9389 df-pnf 11218 df-mnf 11219 df-xr 11220 df-ltxr 11221 df-le 11222 df-sub 11416 df-neg 11417 df-div 11845 df-nn 12211 df-2 12280 df-n0 12482 df-z 12569 df-uz 12840 df-q 12950 df-rp 12994 df-xneg 13114 df-xadd 13115 df-xmul 13116 df-0g 17470 df-topgen 17472 df-mgm 18674 df-sgrp 18753 df-mnd 18769 df-grp 18978 df-psmet 21416 df-xmet 21417 df-met 21418 df-bl 21419 df-mopn 21420 df-top 22954 df-topon 22971 df-topsp 22993 df-bases 23006 df-xms 24380 df-ms 24381 df-nm 24642 df-ngp 24643 |
| This theorem is referenced by: nmrpcl 24680 nm2dif 24685 nmgt0 24690 nminvr 24729 nmdvr 24730 nlmmul0or 24743 nlmvscnlem2 24745 nlmvscnlem1 24746 nrginvrcnlem 24751 nmoi 24788 nmoix 24789 nmoi2 24790 nmoleub 24791 nmo0 24795 nmoeq0 24796 nmoco 24797 nmotri 24799 nmoid 24802 nmoleub2lem 25176 nmoleub2lem3 25177 nmoleub2lem2 25178 nmoleub3 25181 nmhmcn 25182 ncvsm1 25216 ncvspi 25218 ncvs1 25219 cphnmf 25257 reipcl 25259 ipge0 25260 ipcnlem2 25306 ipcnlem1 25307 minveclem1 25486 minveclem2 25488 minveclem4 25494 minveclem6 25496 pjthlem1 25499 |
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