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Theorem nmlnoubi 30037

Description: An upper bound for the operator norm of a linear operator, using only the properties of nonzero arguments. (Contributed by NM, 1-Jan-2008.) (New usage is discouraged.)

**Hypotheses**
Ref	Expression
nmlnoubi.1	⊢ 𝑋 = (BaseSet‘𝑈)
nmlnoubi.z	⊢ 𝑍 = (0_vec‘𝑈)
nmlnoubi.k	⊢ 𝐾 = (norm_CV‘𝑈)
nmlnoubi.m	⊢ 𝑀 = (norm_CV‘𝑊)
nmlnoubi.3	⊢ 𝑁 = (𝑈 normOp_OLD 𝑊)
nmlnoubi.7	⊢ 𝐿 = (𝑈 LnOp 𝑊)
nmlnoubi.u	⊢ 𝑈 ∈ NrmCVec
nmlnoubi.w	⊢ 𝑊 ∈ NrmCVec

**Assertion**
Ref	Expression
nmlnoubi	⊢ ((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴) ∧ ∀𝑥 ∈ 𝑋 (𝑥 ≠ 𝑍 → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥)))) → (𝑁‘𝑇) ≤ 𝐴)

Distinct variable groups: 𝑥,𝐴 𝑥,𝐾 𝑥,𝐿 𝑥,𝑀 𝑥,𝑇 𝑥,𝑈 𝑥,𝑊 𝑥,𝑋 Allowed substitution hints: 𝑁(𝑥) 𝑍(𝑥)

**Proof of Theorem nmlnoubi**
Step	Hyp	Ref	Expression
1		2fveq3 6894	. . . . . . 7 ⊢ (𝑥 = 𝑍 → (𝑀‘(𝑇‘𝑥)) = (𝑀‘(𝑇‘𝑍)))
2		fveq2 6889	. . . . . . . 8 ⊢ (𝑥 = 𝑍 → (𝐾‘𝑥) = (𝐾‘𝑍))
3	2	oveq2d 7422	. . . . . . 7 ⊢ (𝑥 = 𝑍 → (𝐴 · (𝐾‘𝑥)) = (𝐴 · (𝐾‘𝑍)))
4	1, 3	breq12d 5161	. . . . . 6 ⊢ (𝑥 = 𝑍 → ((𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥)) ↔ (𝑀‘(𝑇‘𝑍)) ≤ (𝐴 · (𝐾‘𝑍))))
5		id 22	. . . . . . . 8 ⊢ ((𝑥 ≠ 𝑍 → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥))) → (𝑥 ≠ 𝑍 → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥))))
6	5	imp 408	. . . . . . 7 ⊢ (((𝑥 ≠ 𝑍 → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥))) ∧ 𝑥 ≠ 𝑍) → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥)))
7	6	adantll 713	. . . . . 6 ⊢ ((((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴)) ∧ (𝑥 ≠ 𝑍 → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥)))) ∧ 𝑥 ≠ 𝑍) → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥)))
8		0le0 12310	. . . . . . . 8 ⊢ 0 ≤ 0
9		nmlnoubi.u	. . . . . . . . . . . . 13 ⊢ 𝑈 ∈ NrmCVec
10		nmlnoubi.w	. . . . . . . . . . . . 13 ⊢ 𝑊 ∈ NrmCVec
11		nmlnoubi.1	. . . . . . . . . . . . . 14 ⊢ 𝑋 = (BaseSet‘𝑈)
12		eqid 2733	. . . . . . . . . . . . . 14 ⊢ (BaseSet‘𝑊) = (BaseSet‘𝑊)
13		nmlnoubi.z	. . . . . . . . . . . . . 14 ⊢ 𝑍 = (0_vec‘𝑈)
14		eqid 2733	. . . . . . . . . . . . . 14 ⊢ (0_vec‘𝑊) = (0_vec‘𝑊)
15		nmlnoubi.7	. . . . . . . . . . . . . 14 ⊢ 𝐿 = (𝑈 LnOp 𝑊)
16	11, 12, 13, 14, 15	lno0 29997	. . . . . . . . . . . . 13 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec ∧ 𝑇 ∈ 𝐿) → (𝑇‘𝑍) = (0_vec‘𝑊))
17	9, 10, 16	mp3an12 1452	. . . . . . . . . . . 12 ⊢ (𝑇 ∈ 𝐿 → (𝑇‘𝑍) = (0_vec‘𝑊))
18	17	fveq2d 6893	. . . . . . . . . . 11 ⊢ (𝑇 ∈ 𝐿 → (𝑀‘(𝑇‘𝑍)) = (𝑀‘(0_vec‘𝑊)))
19		nmlnoubi.m	. . . . . . . . . . . . 13 ⊢ 𝑀 = (norm_CV‘𝑊)
20	14, 19	nvz0 29909	. . . . . . . . . . . 12 ⊢ (𝑊 ∈ NrmCVec → (𝑀‘(0_vec‘𝑊)) = 0)
21	10, 20	ax-mp 5	. . . . . . . . . . 11 ⊢ (𝑀‘(0_vec‘𝑊)) = 0
22	18, 21	eqtrdi 2789	. . . . . . . . . 10 ⊢ (𝑇 ∈ 𝐿 → (𝑀‘(𝑇‘𝑍)) = 0)
23	22	adantr 482	. . . . . . . . 9 ⊢ ((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴)) → (𝑀‘(𝑇‘𝑍)) = 0)
24		nmlnoubi.k	. . . . . . . . . . . . . 14 ⊢ 𝐾 = (norm_CV‘𝑈)
25	13, 24	nvz0 29909	. . . . . . . . . . . . 13 ⊢ (𝑈 ∈ NrmCVec → (𝐾‘𝑍) = 0)
26	9, 25	ax-mp 5	. . . . . . . . . . . 12 ⊢ (𝐾‘𝑍) = 0
27	26	oveq2i 7417	. . . . . . . . . . 11 ⊢ (𝐴 · (𝐾‘𝑍)) = (𝐴 · 0)
28		recn 11197	. . . . . . . . . . . 12 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℂ)
29	28	mul01d 11410	. . . . . . . . . . 11 ⊢ (𝐴 ∈ ℝ → (𝐴 · 0) = 0)
30	27, 29	eqtrid 2785	. . . . . . . . . 10 ⊢ (𝐴 ∈ ℝ → (𝐴 · (𝐾‘𝑍)) = 0)
31	30	ad2antrl 727	. . . . . . . . 9 ⊢ ((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴)) → (𝐴 · (𝐾‘𝑍)) = 0)
32	23, 31	breq12d 5161	. . . . . . . 8 ⊢ ((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴)) → ((𝑀‘(𝑇‘𝑍)) ≤ (𝐴 · (𝐾‘𝑍)) ↔ 0 ≤ 0))
33	8, 32	mpbiri 258	. . . . . . 7 ⊢ ((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴)) → (𝑀‘(𝑇‘𝑍)) ≤ (𝐴 · (𝐾‘𝑍)))
34	33	adantr 482	. . . . . 6 ⊢ (((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴)) ∧ (𝑥 ≠ 𝑍 → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥)))) → (𝑀‘(𝑇‘𝑍)) ≤ (𝐴 · (𝐾‘𝑍)))
35	4, 7, 34	pm2.61ne 3028	. . . . 5 ⊢ (((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴)) ∧ (𝑥 ≠ 𝑍 → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥)))) → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥)))
36	35	ex 414	. . . 4 ⊢ ((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴)) → ((𝑥 ≠ 𝑍 → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥))) → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥))))
37	36	ralimdv 3170	. . 3 ⊢ ((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴)) → (∀𝑥 ∈ 𝑋 (𝑥 ≠ 𝑍 → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥))) → ∀𝑥 ∈ 𝑋 (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥))))
38	37	3impia 1118	. 2 ⊢ ((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴) ∧ ∀𝑥 ∈ 𝑋 (𝑥 ≠ 𝑍 → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥)))) → ∀𝑥 ∈ 𝑋 (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥)))
39	11, 12, 15	lnof 29996	. . . 4 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec ∧ 𝑇 ∈ 𝐿) → 𝑇:𝑋⟶(BaseSet‘𝑊))
40	9, 10, 39	mp3an12 1452	. . 3 ⊢ (𝑇 ∈ 𝐿 → 𝑇:𝑋⟶(BaseSet‘𝑊))
41		nmlnoubi.3	. . . 4 ⊢ 𝑁 = (𝑈 normOp_OLD 𝑊)
42	11, 12, 24, 19, 41, 9, 10	nmoub2i 30015	. . 3 ⊢ ((𝑇:𝑋⟶(BaseSet‘𝑊) ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴) ∧ ∀𝑥 ∈ 𝑋 (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥))) → (𝑁‘𝑇) ≤ 𝐴)
43	40, 42	syl3an1 1164	. 2 ⊢ ((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴) ∧ ∀𝑥 ∈ 𝑋 (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥))) → (𝑁‘𝑇) ≤ 𝐴)
44	38, 43	syld3an3 1410	1 ⊢ ((𝑇 ∈ 𝐿 ∧ (𝐴 ∈ ℝ ∧ 0 ≤ 𝐴) ∧ ∀𝑥 ∈ 𝑋 (𝑥 ≠ 𝑍 → (𝑀‘(𝑇‘𝑥)) ≤ (𝐴 · (𝐾‘𝑥)))) → (𝑁‘𝑇) ≤ 𝐴)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 397 ∧ w3a 1088 = wceq 1542 ∈ wcel 2107 ≠ wne 2941 ∀wral 3062 class class class wbr 5148 ⟶wf 6537 ‘cfv 6541 (class class class)co 7406 ℝcr 11106 0cc0 11107 · cmul 11112 ≤ cle 11246 NrmCVeccnv 29825 BaseSetcba 29827 0_veccn0v 29829 norm_CVcnmcv 29831 LnOp clno 29981 normOp_OLD cnmoo 29982

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7722 ax-cnex 11163 ax-resscn 11164 ax-1cn 11165 ax-icn 11166 ax-addcl 11167 ax-addrcl 11168 ax-mulcl 11169 ax-mulrcl 11170 ax-mulcom 11171 ax-addass 11172 ax-mulass 11173 ax-distr 11174 ax-i2m1 11175 ax-1ne0 11176 ax-1rid 11177 ax-rnegex 11178 ax-rrecex 11179 ax-cnre 11180 ax-pre-lttri 11181 ax-pre-lttrn 11182 ax-pre-ltadd 11183 ax-pre-mulgt0 11184 ax-pre-sup 11185

This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3377 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6298 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6493 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-riota 7362 df-ov 7409 df-oprab 7410 df-mpo 7411 df-om 7853 df-1st 7972 df-2nd 7973 df-frecs 8263 df-wrecs 8294 df-recs 8368 df-rdg 8407 df-er 8700 df-map 8819 df-en 8937 df-dom 8938 df-sdom 8939 df-sup 9434 df-pnf 11247 df-mnf 11248 df-xr 11249 df-ltxr 11250 df-le 11251 df-sub 11443 df-neg 11444 df-div 11869 df-nn 12210 df-2 12272 df-3 12273 df-n0 12470 df-z 12556 df-uz 12820 df-rp 12972 df-seq 13964 df-exp 14025 df-cj 15043 df-re 15044 df-im 15045 df-sqrt 15179 df-abs 15180 df-grpo 29734 df-gid 29735 df-ginv 29736 df-ablo 29786 df-vc 29800 df-nv 29833 df-va 29836 df-ba 29837 df-sm 29838 df-0v 29839 df-nmcv 29841 df-lno 29985 df-nmoo 29986

This theorem is referenced by: (None)

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