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| Mirrors > Home > MPE Home > Th. List > cphnmf | Structured version Visualization version GIF version | ||
| Description: The norm of a vector is a member of the scalar field in a subcomplex pre-Hilbert space. (Contributed by Mario Carneiro, 9-Oct-2015.) |
| Ref | Expression |
|---|---|
| nmsq.v | ⊢ 𝑉 = (Base‘𝑊) |
| nmsq.h | ⊢ , = (·𝑖‘𝑊) |
| nmsq.n | ⊢ 𝑁 = (norm‘𝑊) |
| cphnmcl.f | ⊢ 𝐹 = (Scalar‘𝑊) |
| cphnmcl.k | ⊢ 𝐾 = (Base‘𝐹) |
| Ref | Expression |
|---|---|
| cphnmf | ⊢ (𝑊 ∈ ℂPreHil → 𝑁:𝑉⟶𝐾) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nmsq.v | . . 3 ⊢ 𝑉 = (Base‘𝑊) | |
| 2 | nmsq.h | . . 3 ⊢ , = (·𝑖‘𝑊) | |
| 3 | nmsq.n | . . 3 ⊢ 𝑁 = (norm‘𝑊) | |
| 4 | 1, 2, 3 | cphnmfval 25522 | . 2 ⊢ (𝑊 ∈ ℂPreHil → 𝑁 = (𝑥 ∈ 𝑉 ↦ (√‘(𝑥 , 𝑥)))) |
| 5 | simpl 488 | . . 3 ⊢ ((𝑊 ∈ ℂPreHil ∧ 𝑥 ∈ 𝑉) → 𝑊 ∈ ℂPreHil) | |
| 6 | cphphl 25501 | . . . . 5 ⊢ (𝑊 ∈ ℂPreHil → 𝑊 ∈ PreHil) | |
| 7 | 6 | adantr 486 | . . . 4 ⊢ ((𝑊 ∈ ℂPreHil ∧ 𝑥 ∈ 𝑉) → 𝑊 ∈ PreHil) |
| 8 | simpr 490 | . . . 4 ⊢ ((𝑊 ∈ ℂPreHil ∧ 𝑥 ∈ 𝑉) → 𝑥 ∈ 𝑉) | |
| 9 | cphnmcl.f | . . . . 5 ⊢ 𝐹 = (Scalar‘𝑊) | |
| 10 | cphnmcl.k | . . . . 5 ⊢ 𝐾 = (Base‘𝐹) | |
| 11 | 9, 2, 1, 10 | ipcl 21948 | . . . 4 ⊢ ((𝑊 ∈ PreHil ∧ 𝑥 ∈ 𝑉 ∧ 𝑥 ∈ 𝑉) → (𝑥 , 𝑥) ∈ 𝐾) |
| 12 | 7, 8, 8, 11 | syl3anc 1398 | . . 3 ⊢ ((𝑊 ∈ ℂPreHil ∧ 𝑥 ∈ 𝑉) → (𝑥 , 𝑥) ∈ 𝐾) |
| 13 | 1, 2, 3 | nmsq 25524 | . . . 4 ⊢ ((𝑊 ∈ ℂPreHil ∧ 𝑥 ∈ 𝑉) → ((𝑁‘𝑥)↑2) = (𝑥 , 𝑥)) |
| 14 | cphngp 25503 | . . . . . 6 ⊢ (𝑊 ∈ ℂPreHil → 𝑊 ∈ NrmGrp) | |
| 15 | 1, 3 | nmcl 24944 | . . . . . 6 ⊢ ((𝑊 ∈ NrmGrp ∧ 𝑥 ∈ 𝑉) → (𝑁‘𝑥) ∈ ℝ) |
| 16 | 14, 15 | sylan 592 | . . . . 5 ⊢ ((𝑊 ∈ ℂPreHil ∧ 𝑥 ∈ 𝑉) → (𝑁‘𝑥) ∈ ℝ) |
| 17 | 16 | resqcld 14275 | . . . 4 ⊢ ((𝑊 ∈ ℂPreHil ∧ 𝑥 ∈ 𝑉) → ((𝑁‘𝑥)↑2) ∈ ℝ) |
| 18 | 13, 17 | eqeltrrd 2861 | . . 3 ⊢ ((𝑊 ∈ ℂPreHil ∧ 𝑥 ∈ 𝑉) → (𝑥 , 𝑥) ∈ ℝ) |
| 19 | 16 | sqge0d 14287 | . . . 4 ⊢ ((𝑊 ∈ ℂPreHil ∧ 𝑥 ∈ 𝑉) → 0 ≤ ((𝑁‘𝑥)↑2)) |
| 20 | 19, 13 | breqtrd 5130 | . . 3 ⊢ ((𝑊 ∈ ℂPreHil ∧ 𝑥 ∈ 𝑉) → 0 ≤ (𝑥 , 𝑥)) |
| 21 | 9, 10 | cphsqrtcl 25514 | . . 3 ⊢ ((𝑊 ∈ ℂPreHil ∧ ((𝑥 , 𝑥) ∈ 𝐾 ∧ (𝑥 , 𝑥) ∈ ℝ ∧ 0 ≤ (𝑥 , 𝑥))) → (√‘(𝑥 , 𝑥)) ∈ 𝐾) |
| 22 | 5, 12, 18, 20, 21 | syl13anc 1399 | . 2 ⊢ ((𝑊 ∈ ℂPreHil ∧ 𝑥 ∈ 𝑉) → (√‘(𝑥 , 𝑥)) ∈ 𝐾) |
| 23 | 4, 22 | fmpt3d 7121 | 1 ⊢ (𝑊 ∈ ℂPreHil → 𝑁:𝑉⟶𝐾) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2144 class class class wbr 5102 ⟶wf 6539 ‘cfv 6543 (class class class)co 7424 ℝcr 11206 0cc0 11207 ≤ cle 11351 2c2 12404 ↑cexp 14211 √csqrt 15409 Basecbs 17396 Scalarcsca 17440 ·𝑖cip 17442 PreHilcphl 21939 normcnm 24904 NrmGrpcngp 24905 ℂPreHilccph 25496 |
| 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 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 ax-cnex 11263 ax-resscn 11264 ax-1cn 11265 ax-icn 11266 ax-addcl 11267 ax-addrcl 11268 ax-mulcl 11269 ax-mulrcl 11270 ax-mulcom 11271 ax-addass 11272 ax-mulass 11273 ax-distr 11274 ax-i2m1 11275 ax-1ne0 11276 ax-1rid 11277 ax-rnegex 11278 ax-rrecex 11279 ax-cnre 11280 ax-pre-lttri 11281 ax-pre-lttrn 11282 ax-pre-ltadd 11283 ax-pre-mulgt0 11284 ax-pre-sup 11285 ax-addf 11286 ax-mulf 11287 |
| 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 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-pss 4013 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6307 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7381 df-ov 7427 df-oprab 7428 df-mpo 7429 df-om 7882 df-1st 8005 df-2nd 8006 df-tpos 8251 df-frecs 8307 df-wrecs 8338 df-recs 8387 df-rdg 8426 df-1o 8484 df-er 8725 df-map 8857 df-en 8982 df-dom 8983 df-sdom 8984 df-fin 8985 df-sup 9441 df-inf 9442 df-pnf 11352 df-mnf 11353 df-xr 11354 df-ltxr 11355 df-le 11356 df-sub 11550 df-neg 11551 df-div 11981 df-nn 12343 df-2 12412 df-3 12413 df-4 12414 df-5 12415 df-6 12416 df-7 12417 df-8 12418 df-9 12419 df-n0 12614 df-z 12701 df-dec 12822 df-uz 12973 df-q 13083 df-rp 13128 df-xneg 13248 df-xadd 13249 df-xmul 13250 df-ico 13489 df-fz 13647 df-seq 14152 df-exp 14212 df-cj 15275 df-re 15276 df-im 15277 df-sqrt 15411 df-abs 15412 df-struct 17334 df-sets 17351 df-slot 17369 df-ndx 17381 df-base 17397 df-ress 17418 df-plusg 17450 df-mulr 17451 df-starv 17452 df-sca 17453 df-vsca 17454 df-ip 17455 df-tset 17456 df-ple 17457 df-ds 17459 df-unif 17460 df-0g 17621 df-topgen 17623 df-mgm 18825 df-sgrp 18917 df-mnd 18933 df-grp 19156 df-minusg 19157 df-subg 19342 df-ghm 19437 df-cmn 20005 df-abl 20006 df-mgp 20370 df-rng 20384 df-ur 20417 df-ring 20470 df-cring 20471 df-oppr 20576 df-dvdsr 20596 df-unit 20597 df-subrg 20831 df-drng 20991 df-lmhm 21306 df-lvec 21387 df-sra 21457 df-rgmod 21458 df-psmet 21679 df-xmet 21680 df-met 21681 df-bl 21682 df-mopn 21683 df-cnfld 21688 df-phl 21941 df-top 23221 df-topon 23238 df-topsp 23260 df-bases 23273 df-xms 24648 df-ms 24649 df-nm 24910 df-ngp 24911 df-nlm 24914 df-cph 25498 |
| This theorem is used by: cphnmcl 25526 |
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