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Mirrors > Home > MPE Home > Th. List > minveclem1 | Structured version Visualization version GIF version |
Description: Lemma for minvec 24200. The set of all distances from points of 𝑌 to 𝐴 are a nonempty set of nonnegative reals. (Contributed by Mario Carneiro, 8-May-2014.) (Revised by Mario Carneiro, 15-Oct-2015.) |
Ref | Expression |
---|---|
minvec.x | ⊢ 𝑋 = (Base‘𝑈) |
minvec.m | ⊢ − = (-g‘𝑈) |
minvec.n | ⊢ 𝑁 = (norm‘𝑈) |
minvec.u | ⊢ (𝜑 → 𝑈 ∈ ℂPreHil) |
minvec.y | ⊢ (𝜑 → 𝑌 ∈ (LSubSp‘𝑈)) |
minvec.w | ⊢ (𝜑 → (𝑈 ↾s 𝑌) ∈ CMetSp) |
minvec.a | ⊢ (𝜑 → 𝐴 ∈ 𝑋) |
minvec.j | ⊢ 𝐽 = (TopOpen‘𝑈) |
minvec.r | ⊢ 𝑅 = ran (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦))) |
Ref | Expression |
---|---|
minveclem1 | ⊢ (𝜑 → (𝑅 ⊆ ℝ ∧ 𝑅 ≠ ∅ ∧ ∀𝑤 ∈ 𝑅 0 ≤ 𝑤)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | minvec.r | . . 3 ⊢ 𝑅 = ran (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦))) | |
2 | minvec.u | . . . . . . 7 ⊢ (𝜑 → 𝑈 ∈ ℂPreHil) | |
3 | cphngp 23937 | . . . . . . 7 ⊢ (𝑈 ∈ ℂPreHil → 𝑈 ∈ NrmGrp) | |
4 | 2, 3 | syl 17 | . . . . . 6 ⊢ (𝜑 → 𝑈 ∈ NrmGrp) |
5 | cphlmod 23938 | . . . . . . . . 9 ⊢ (𝑈 ∈ ℂPreHil → 𝑈 ∈ LMod) | |
6 | 2, 5 | syl 17 | . . . . . . . 8 ⊢ (𝜑 → 𝑈 ∈ LMod) |
7 | 6 | adantr 484 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑌) → 𝑈 ∈ LMod) |
8 | minvec.a | . . . . . . . 8 ⊢ (𝜑 → 𝐴 ∈ 𝑋) | |
9 | 8 | adantr 484 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑌) → 𝐴 ∈ 𝑋) |
10 | minvec.y | . . . . . . . . 9 ⊢ (𝜑 → 𝑌 ∈ (LSubSp‘𝑈)) | |
11 | minvec.x | . . . . . . . . . 10 ⊢ 𝑋 = (Base‘𝑈) | |
12 | eqid 2739 | . . . . . . . . . 10 ⊢ (LSubSp‘𝑈) = (LSubSp‘𝑈) | |
13 | 11, 12 | lssss 19839 | . . . . . . . . 9 ⊢ (𝑌 ∈ (LSubSp‘𝑈) → 𝑌 ⊆ 𝑋) |
14 | 10, 13 | syl 17 | . . . . . . . 8 ⊢ (𝜑 → 𝑌 ⊆ 𝑋) |
15 | 14 | sselda 3887 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑌) → 𝑦 ∈ 𝑋) |
16 | minvec.m | . . . . . . . 8 ⊢ − = (-g‘𝑈) | |
17 | 11, 16 | lmodvsubcl 19810 | . . . . . . 7 ⊢ ((𝑈 ∈ LMod ∧ 𝐴 ∈ 𝑋 ∧ 𝑦 ∈ 𝑋) → (𝐴 − 𝑦) ∈ 𝑋) |
18 | 7, 9, 15, 17 | syl3anc 1372 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑌) → (𝐴 − 𝑦) ∈ 𝑋) |
19 | minvec.n | . . . . . . 7 ⊢ 𝑁 = (norm‘𝑈) | |
20 | 11, 19 | nmcl 23381 | . . . . . 6 ⊢ ((𝑈 ∈ NrmGrp ∧ (𝐴 − 𝑦) ∈ 𝑋) → (𝑁‘(𝐴 − 𝑦)) ∈ ℝ) |
21 | 4, 18, 20 | syl2an2r 685 | . . . . 5 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑌) → (𝑁‘(𝐴 − 𝑦)) ∈ ℝ) |
22 | 21 | fmpttd 6901 | . . . 4 ⊢ (𝜑 → (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦))):𝑌⟶ℝ) |
23 | 22 | frnd 6522 | . . 3 ⊢ (𝜑 → ran (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦))) ⊆ ℝ) |
24 | 1, 23 | eqsstrid 3935 | . 2 ⊢ (𝜑 → 𝑅 ⊆ ℝ) |
25 | 12 | lssn0 19843 | . . . 4 ⊢ (𝑌 ∈ (LSubSp‘𝑈) → 𝑌 ≠ ∅) |
26 | 10, 25 | syl 17 | . . 3 ⊢ (𝜑 → 𝑌 ≠ ∅) |
27 | 1 | eqeq1i 2744 | . . . . 5 ⊢ (𝑅 = ∅ ↔ ran (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦))) = ∅) |
28 | dm0rn0 5778 | . . . . 5 ⊢ (dom (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦))) = ∅ ↔ ran (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦))) = ∅) | |
29 | fvex 6699 | . . . . . . 7 ⊢ (𝑁‘(𝐴 − 𝑦)) ∈ V | |
30 | eqid 2739 | . . . . . . 7 ⊢ (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦))) = (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦))) | |
31 | 29, 30 | dmmpti 6491 | . . . . . 6 ⊢ dom (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦))) = 𝑌 |
32 | 31 | eqeq1i 2744 | . . . . 5 ⊢ (dom (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦))) = ∅ ↔ 𝑌 = ∅) |
33 | 27, 28, 32 | 3bitr2i 302 | . . . 4 ⊢ (𝑅 = ∅ ↔ 𝑌 = ∅) |
34 | 33 | necon3bii 2987 | . . 3 ⊢ (𝑅 ≠ ∅ ↔ 𝑌 ≠ ∅) |
35 | 26, 34 | sylibr 237 | . 2 ⊢ (𝜑 → 𝑅 ≠ ∅) |
36 | 11, 19 | nmge0 23382 | . . . . . 6 ⊢ ((𝑈 ∈ NrmGrp ∧ (𝐴 − 𝑦) ∈ 𝑋) → 0 ≤ (𝑁‘(𝐴 − 𝑦))) |
37 | 4, 18, 36 | syl2an2r 685 | . . . . 5 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑌) → 0 ≤ (𝑁‘(𝐴 − 𝑦))) |
38 | 37 | ralrimiva 3097 | . . . 4 ⊢ (𝜑 → ∀𝑦 ∈ 𝑌 0 ≤ (𝑁‘(𝐴 − 𝑦))) |
39 | 29 | rgenw 3066 | . . . . 5 ⊢ ∀𝑦 ∈ 𝑌 (𝑁‘(𝐴 − 𝑦)) ∈ V |
40 | breq2 5044 | . . . . . 6 ⊢ (𝑤 = (𝑁‘(𝐴 − 𝑦)) → (0 ≤ 𝑤 ↔ 0 ≤ (𝑁‘(𝐴 − 𝑦)))) | |
41 | 30, 40 | ralrnmptw 6882 | . . . . 5 ⊢ (∀𝑦 ∈ 𝑌 (𝑁‘(𝐴 − 𝑦)) ∈ V → (∀𝑤 ∈ ran (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦)))0 ≤ 𝑤 ↔ ∀𝑦 ∈ 𝑌 0 ≤ (𝑁‘(𝐴 − 𝑦)))) |
42 | 39, 41 | ax-mp 5 | . . . 4 ⊢ (∀𝑤 ∈ ran (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦)))0 ≤ 𝑤 ↔ ∀𝑦 ∈ 𝑌 0 ≤ (𝑁‘(𝐴 − 𝑦))) |
43 | 38, 42 | sylibr 237 | . . 3 ⊢ (𝜑 → ∀𝑤 ∈ ran (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦)))0 ≤ 𝑤) |
44 | 1 | raleqi 3315 | . . 3 ⊢ (∀𝑤 ∈ 𝑅 0 ≤ 𝑤 ↔ ∀𝑤 ∈ ran (𝑦 ∈ 𝑌 ↦ (𝑁‘(𝐴 − 𝑦)))0 ≤ 𝑤) |
45 | 43, 44 | sylibr 237 | . 2 ⊢ (𝜑 → ∀𝑤 ∈ 𝑅 0 ≤ 𝑤) |
46 | 24, 35, 45 | 3jca 1129 | 1 ⊢ (𝜑 → (𝑅 ⊆ ℝ ∧ 𝑅 ≠ ∅ ∧ ∀𝑤 ∈ 𝑅 0 ≤ 𝑤)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 ∧ w3a 1088 = wceq 1542 ∈ wcel 2114 ≠ wne 2935 ∀wral 3054 Vcvv 3400 ⊆ wss 3853 ∅c0 4221 class class class wbr 5040 ↦ cmpt 5120 dom cdm 5535 ran crn 5536 ‘cfv 6349 (class class class)co 7182 ℝcr 10626 0cc0 10627 ≤ cle 10766 Basecbs 16598 ↾s cress 16599 TopOpenctopn 16810 -gcsg 18233 LModclmod 19765 LSubSpclss 19834 normcnm 23341 NrmGrpcngp 23342 ℂPreHilccph 23930 CMetSpccms 24096 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2020 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2162 ax-12 2179 ax-ext 2711 ax-sep 5177 ax-nul 5184 ax-pow 5242 ax-pr 5306 ax-un 7491 ax-cnex 10683 ax-resscn 10684 ax-1cn 10685 ax-icn 10686 ax-addcl 10687 ax-addrcl 10688 ax-mulcl 10689 ax-mulrcl 10690 ax-mulcom 10691 ax-addass 10692 ax-mulass 10693 ax-distr 10694 ax-i2m1 10695 ax-1ne0 10696 ax-1rid 10697 ax-rnegex 10698 ax-rrecex 10699 ax-cnre 10700 ax-pre-lttri 10701 ax-pre-lttrn 10702 ax-pre-ltadd 10703 ax-pre-mulgt0 10704 ax-pre-sup 10705 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2075 df-mo 2541 df-eu 2571 df-clab 2718 df-cleq 2731 df-clel 2812 df-nfc 2882 df-ne 2936 df-nel 3040 df-ral 3059 df-rex 3060 df-reu 3061 df-rmo 3062 df-rab 3063 df-v 3402 df-sbc 3686 df-csb 3801 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-pss 3872 df-nul 4222 df-if 4425 df-pw 4500 df-sn 4527 df-pr 4529 df-tp 4531 df-op 4533 df-uni 4807 df-iun 4893 df-br 5041 df-opab 5103 df-mpt 5121 df-tr 5147 df-id 5439 df-eprel 5444 df-po 5452 df-so 5453 df-fr 5493 df-we 5495 df-xp 5541 df-rel 5542 df-cnv 5543 df-co 5544 df-dm 5545 df-rn 5546 df-res 5547 df-ima 5548 df-pred 6139 df-ord 6185 df-on 6186 df-lim 6187 df-suc 6188 df-iota 6307 df-fun 6351 df-fn 6352 df-f 6353 df-f1 6354 df-fo 6355 df-f1o 6356 df-fv 6357 df-riota 7139 df-ov 7185 df-oprab 7186 df-mpo 7187 df-om 7612 df-1st 7726 df-2nd 7727 df-wrecs 7988 df-recs 8049 df-rdg 8087 df-er 8332 df-map 8451 df-en 8568 df-dom 8569 df-sdom 8570 df-sup 8991 df-inf 8992 df-pnf 10767 df-mnf 10768 df-xr 10769 df-ltxr 10770 df-le 10771 df-sub 10962 df-neg 10963 df-div 11388 df-nn 11729 df-2 11791 df-n0 11989 df-z 12075 df-uz 12337 df-q 12443 df-rp 12485 df-xneg 12602 df-xadd 12603 df-xmul 12604 df-0g 16830 df-topgen 16832 df-mgm 17980 df-sgrp 18029 df-mnd 18040 df-grp 18234 df-minusg 18235 df-sbg 18236 df-lmod 19767 df-lss 19835 df-psmet 20221 df-xmet 20222 df-met 20223 df-bl 20224 df-mopn 20225 df-top 21657 df-topon 21674 df-topsp 21696 df-bases 21709 df-xms 23085 df-ms 23086 df-nm 23347 df-ngp 23348 df-nlm 23351 df-cph 23932 |
This theorem is referenced by: minveclem4c 24189 minveclem2 24190 minveclem3b 24192 minveclem4 24196 minveclem6 24198 |
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