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Theorem nmounbi 28711

Description: Two ways two express that an operator is unbounded. (Contributed by NM, 11-Jan-2008.) (New usage is discouraged.)

**Hypotheses**
Ref	Expression
nmoubi.1	⊢ 𝑋 = (BaseSet‘𝑈)
nmoubi.y	⊢ 𝑌 = (BaseSet‘𝑊)
nmoubi.l	⊢ 𝐿 = (norm_CV‘𝑈)
nmoubi.m	⊢ 𝑀 = (norm_CV‘𝑊)
nmoubi.3	⊢ 𝑁 = (𝑈 normOp_OLD 𝑊)
nmoubi.u	⊢ 𝑈 ∈ NrmCVec
nmoubi.w	⊢ 𝑊 ∈ NrmCVec

**Assertion**
Ref	Expression
nmounbi	⊢ (𝑇:𝑋⟶𝑌 → ((𝑁‘𝑇) = +∞ ↔ ∀𝑟 ∈ ℝ ∃𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦)))))

Distinct variable groups: 𝑦,𝑟,𝐿 𝑦,𝑈 𝑦,𝑊 𝑌,𝑟,𝑦 𝑀,𝑟,𝑦 𝑇,𝑟,𝑦 𝑋,𝑟,𝑦 𝑁,𝑟,𝑦 Allowed substitution hints: 𝑈(𝑟) 𝑊(𝑟)

**Proof of Theorem nmounbi**
Step	Hyp	Ref	Expression
1		nmoubi.1	. . . 4 ⊢ 𝑋 = (BaseSet‘𝑈)
2		nmoubi.y	. . . 4 ⊢ 𝑌 = (BaseSet‘𝑊)
3		nmoubi.l	. . . 4 ⊢ 𝐿 = (norm_CV‘𝑈)
4		nmoubi.m	. . . 4 ⊢ 𝑀 = (norm_CV‘𝑊)
5		nmoubi.3	. . . 4 ⊢ 𝑁 = (𝑈 normOp_OLD 𝑊)
6		nmoubi.u	. . . 4 ⊢ 𝑈 ∈ NrmCVec
7		nmoubi.w	. . . 4 ⊢ 𝑊 ∈ NrmCVec
8	1, 2, 3, 4, 5, 6, 7	nmobndi 28710	. . 3 ⊢ (𝑇:𝑋⟶𝑌 → ((𝑁‘𝑇) ∈ ℝ ↔ ∃𝑟 ∈ ℝ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑟)))
9	1, 2, 5	nmorepnf 28703	. . . 4 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ NrmCVec ∧ 𝑇:𝑋⟶𝑌) → ((𝑁‘𝑇) ∈ ℝ ↔ (𝑁‘𝑇) ≠ +∞))
10	6, 7, 9	mp3an12 1452	. . 3 ⊢ (𝑇:𝑋⟶𝑌 → ((𝑁‘𝑇) ∈ ℝ ↔ (𝑁‘𝑇) ≠ +∞))
11		ffvelrn 6859	. . . . . . . . . . . 12 ⊢ ((𝑇:𝑋⟶𝑌 ∧ 𝑦 ∈ 𝑋) → (𝑇‘𝑦) ∈ 𝑌)
12	2, 4	nvcl 28596	. . . . . . . . . . . 12 ⊢ ((𝑊 ∈ NrmCVec ∧ (𝑇‘𝑦) ∈ 𝑌) → (𝑀‘(𝑇‘𝑦)) ∈ ℝ)
13	7, 11, 12	sylancr 590	. . . . . . . . . . 11 ⊢ ((𝑇:𝑋⟶𝑌 ∧ 𝑦 ∈ 𝑋) → (𝑀‘(𝑇‘𝑦)) ∈ ℝ)
14		lenlt 10797	. . . . . . . . . . 11 ⊢ (((𝑀‘(𝑇‘𝑦)) ∈ ℝ ∧ 𝑟 ∈ ℝ) → ((𝑀‘(𝑇‘𝑦)) ≤ 𝑟 ↔ ¬ 𝑟 < (𝑀‘(𝑇‘𝑦))))
15	13, 14	sylan 583	. . . . . . . . . 10 ⊢ (((𝑇:𝑋⟶𝑌 ∧ 𝑦 ∈ 𝑋) ∧ 𝑟 ∈ ℝ) → ((𝑀‘(𝑇‘𝑦)) ≤ 𝑟 ↔ ¬ 𝑟 < (𝑀‘(𝑇‘𝑦))))
16	15	an32s 652	. . . . . . . . 9 ⊢ (((𝑇:𝑋⟶𝑌 ∧ 𝑟 ∈ ℝ) ∧ 𝑦 ∈ 𝑋) → ((𝑀‘(𝑇‘𝑦)) ≤ 𝑟 ↔ ¬ 𝑟 < (𝑀‘(𝑇‘𝑦))))
17	16	imbi2d 344	. . . . . . . 8 ⊢ (((𝑇:𝑋⟶𝑌 ∧ 𝑟 ∈ ℝ) ∧ 𝑦 ∈ 𝑋) → (((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑟) ↔ ((𝐿‘𝑦) ≤ 1 → ¬ 𝑟 < (𝑀‘(𝑇‘𝑦)))))
18		imnan 403	. . . . . . . 8 ⊢ (((𝐿‘𝑦) ≤ 1 → ¬ 𝑟 < (𝑀‘(𝑇‘𝑦))) ↔ ¬ ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦))))
19	17, 18	bitrdi 290	. . . . . . 7 ⊢ (((𝑇:𝑋⟶𝑌 ∧ 𝑟 ∈ ℝ) ∧ 𝑦 ∈ 𝑋) → (((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑟) ↔ ¬ ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦)))))
20	19	ralbidva 3108	. . . . . 6 ⊢ ((𝑇:𝑋⟶𝑌 ∧ 𝑟 ∈ ℝ) → (∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑟) ↔ ∀𝑦 ∈ 𝑋 ¬ ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦)))))
21		ralnex 3149	. . . . . 6 ⊢ (∀𝑦 ∈ 𝑋 ¬ ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦))) ↔ ¬ ∃𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦))))
22	20, 21	bitrdi 290	. . . . 5 ⊢ ((𝑇:𝑋⟶𝑌 ∧ 𝑟 ∈ ℝ) → (∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑟) ↔ ¬ ∃𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦)))))
23	22	rexbidva 3206	. . . 4 ⊢ (𝑇:𝑋⟶𝑌 → (∃𝑟 ∈ ℝ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑟) ↔ ∃𝑟 ∈ ℝ ¬ ∃𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦)))))
24		rexnal 3151	. . . 4 ⊢ (∃𝑟 ∈ ℝ ¬ ∃𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦))) ↔ ¬ ∀𝑟 ∈ ℝ ∃𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦))))
25	23, 24	bitrdi 290	. . 3 ⊢ (𝑇:𝑋⟶𝑌 → (∃𝑟 ∈ ℝ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑟) ↔ ¬ ∀𝑟 ∈ ℝ ∃𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦)))))
26	8, 10, 25	3bitr3d 312	. 2 ⊢ (𝑇:𝑋⟶𝑌 → ((𝑁‘𝑇) ≠ +∞ ↔ ¬ ∀𝑟 ∈ ℝ ∃𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦)))))
27	26	necon4abid 2974	1 ⊢ (𝑇:𝑋⟶𝑌 → ((𝑁‘𝑇) = +∞ ↔ ∀𝑟 ∈ ℝ ∃𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 ∧ 𝑟 < (𝑀‘(𝑇‘𝑦)))))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 399 = wceq 1542 ∈ wcel 2114 ≠ wne 2934 ∀wral 3053 ∃wrex 3054 class class class wbr 5030 ⟶wf 6335 ‘cfv 6339 (class class class)co 7170 ℝcr 10614 1c1 10616 +∞cpnf 10750 < clt 10753 ≤ cle 10754 NrmCVeccnv 28519 BaseSetcba 28521 norm_CVcnmcv 28525 normOp_OLD cnmoo 28676

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 2710 ax-rep 5154 ax-sep 5167 ax-nul 5174 ax-pow 5232 ax-pr 5296 ax-un 7479 ax-cnex 10671 ax-resscn 10672 ax-1cn 10673 ax-icn 10674 ax-addcl 10675 ax-addrcl 10676 ax-mulcl 10677 ax-mulrcl 10678 ax-mulcom 10679 ax-addass 10680 ax-mulass 10681 ax-distr 10682 ax-i2m1 10683 ax-1ne0 10684 ax-1rid 10685 ax-rnegex 10686 ax-rrecex 10687 ax-cnre 10688 ax-pre-lttri 10689 ax-pre-lttrn 10690 ax-pre-ltadd 10691 ax-pre-mulgt0 10692 ax-pre-sup 10693

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 2540 df-eu 2570 df-clab 2717 df-cleq 2730 df-clel 2811 df-nfc 2881 df-ne 2935 df-nel 3039 df-ral 3058 df-rex 3059 df-reu 3060 df-rmo 3061 df-rab 3062 df-v 3400 df-sbc 3681 df-csb 3791 df-dif 3846 df-un 3848 df-in 3850 df-ss 3860 df-pss 3862 df-nul 4212 df-if 4415 df-pw 4490 df-sn 4517 df-pr 4519 df-tp 4521 df-op 4523 df-uni 4797 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-tr 5137 df-id 5429 df-eprel 5434 df-po 5442 df-so 5443 df-fr 5483 df-we 5485 df-xp 5531 df-rel 5532 df-cnv 5533 df-co 5534 df-dm 5535 df-rn 5536 df-res 5537 df-ima 5538 df-pred 6129 df-ord 6175 df-on 6176 df-lim 6177 df-suc 6178 df-iota 6297 df-fun 6341 df-fn 6342 df-f 6343 df-f1 6344 df-fo 6345 df-f1o 6346 df-fv 6347 df-riota 7127 df-ov 7173 df-oprab 7174 df-mpo 7175 df-om 7600 df-1st 7714 df-2nd 7715 df-wrecs 7976 df-recs 8037 df-rdg 8075 df-er 8320 df-map 8439 df-en 8556 df-dom 8557 df-sdom 8558 df-sup 8979 df-pnf 10755 df-mnf 10756 df-xr 10757 df-ltxr 10758 df-le 10759 df-sub 10950 df-neg 10951 df-div 11376 df-nn 11717 df-2 11779 df-3 11780 df-n0 11977 df-z 12063 df-uz 12325 df-rp 12473 df-seq 13461 df-exp 13522 df-cj 14548 df-re 14549 df-im 14550 df-sqrt 14684 df-abs 14685 df-grpo 28428 df-gid 28429 df-ginv 28430 df-ablo 28480 df-vc 28494 df-nv 28527 df-va 28530 df-ba 28531 df-sm 28532 df-0v 28533 df-nmcv 28535 df-nmoo 28680

This theorem is referenced by: nmounbseqi 28712 nmounbseqiALT 28713

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