Theorem nmobndseqi 30798

Description: A bounded sequence determines a bounded operator. (Contributed by NM, 18-Jan-2008.) (Revised by Mario Carneiro, 7-Apr-2013.) (New usage is discouraged.)

Hypotheses

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

Assertion

Ref	Expression
nmobndseqi	⊢ ((𝑇:𝑋⟶𝑌 ∧ ∀𝑓((𝑓:ℕ⟶𝑋 ∧ ∀𝑘 ∈ ℕ (𝐿‘(𝑓‘𝑘)) ≤ 1) → ∃𝑘 ∈ ℕ (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)) → (𝑁‘𝑇) ∈ ℝ)

Distinct variable groups:   𝑓,𝑘,𝐿   𝑘,𝑌   𝑓,𝑀,𝑘   𝑇,𝑓,𝑘   𝑓,𝑋,𝑘   𝑘,𝑁

Allowed substitution hints:   𝑈(𝑓,𝑘)   𝑁(𝑓)   𝑊(𝑓,𝑘)   𝑌(𝑓)

Proof of Theorem nmobndseqi

Dummy variable 𝑦 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		impexp 450	. . . . . 6 ⊢ (((𝑓:ℕ⟶𝑋 ∧ ∀𝑘 ∈ ℕ (𝐿‘(𝑓‘𝑘)) ≤ 1) → ∃𝑘 ∈ ℕ (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘) ↔ (𝑓:ℕ⟶𝑋 → (∀𝑘 ∈ ℕ (𝐿‘(𝑓‘𝑘)) ≤ 1 → ∃𝑘 ∈ ℕ (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)))
2		r19.35 3108	. . . . . . 7 ⊢ (∃𝑘 ∈ ℕ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘) ↔ (∀𝑘 ∈ ℕ (𝐿‘(𝑓‘𝑘)) ≤ 1 → ∃𝑘 ∈ ℕ (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘))
3	2	imbi2i 336	. . . . . 6 ⊢ ((𝑓:ℕ⟶𝑋 → ∃𝑘 ∈ ℕ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)) ↔ (𝑓:ℕ⟶𝑋 → (∀𝑘 ∈ ℕ (𝐿‘(𝑓‘𝑘)) ≤ 1 → ∃𝑘 ∈ ℕ (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)))
4	1, 3	bitr4i 278	. . . . 5 ⊢ (((𝑓:ℕ⟶𝑋 ∧ ∀𝑘 ∈ ℕ (𝐿‘(𝑓‘𝑘)) ≤ 1) → ∃𝑘 ∈ ℕ (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘) ↔ (𝑓:ℕ⟶𝑋 → ∃𝑘 ∈ ℕ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)))
5	4	albii 1819	. . . 4 ⊢ (∀𝑓((𝑓:ℕ⟶𝑋 ∧ ∀𝑘 ∈ ℕ (𝐿‘(𝑓‘𝑘)) ≤ 1) → ∃𝑘 ∈ ℕ (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘) ↔ ∀𝑓(𝑓:ℕ⟶𝑋 → ∃𝑘 ∈ ℕ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)))
6		nmoubi.1	. . . . . . . . 9 ⊢ 𝑋 = (BaseSet‘𝑈)
7	6	fvexi 6920	. . . . . . . 8 ⊢ 𝑋 ∈ V
8		nnenom 14021	. . . . . . . 8 ⊢ ℕ ≈ ω
9		fveq2 6906	. . . . . . . . . . 11 ⊢ (𝑦 = (𝑓‘𝑘) → (𝐿‘𝑦) = (𝐿‘(𝑓‘𝑘)))
10	9	breq1d 5153	. . . . . . . . . 10 ⊢ (𝑦 = (𝑓‘𝑘) → ((𝐿‘𝑦) ≤ 1 ↔ (𝐿‘(𝑓‘𝑘)) ≤ 1))
11		2fveq3 6911	. . . . . . . . . . 11 ⊢ (𝑦 = (𝑓‘𝑘) → (𝑀‘(𝑇‘𝑦)) = (𝑀‘(𝑇‘(𝑓‘𝑘))))
12	11	breq1d 5153	. . . . . . . . . 10 ⊢ (𝑦 = (𝑓‘𝑘) → ((𝑀‘(𝑇‘𝑦)) ≤ 𝑘 ↔ (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘))
13	10, 12	imbi12d 344	. . . . . . . . 9 ⊢ (𝑦 = (𝑓‘𝑘) → (((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘) ↔ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)))
14	13	notbid 318	. . . . . . . 8 ⊢ (𝑦 = (𝑓‘𝑘) → (¬ ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘) ↔ ¬ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)))
15	7, 8, 14	axcc4 10479	. . . . . . 7 ⊢ (∀𝑘 ∈ ℕ ∃𝑦 ∈ 𝑋 ¬ ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘) → ∃𝑓(𝑓:ℕ⟶𝑋 ∧ ∀𝑘 ∈ ℕ ¬ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)))
16	15	con3i 154	. . . . . 6 ⊢ (¬ ∃𝑓(𝑓:ℕ⟶𝑋 ∧ ∀𝑘 ∈ ℕ ¬ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)) → ¬ ∀𝑘 ∈ ℕ ∃𝑦 ∈ 𝑋 ¬ ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘))
17		dfrex2 3073	. . . . . . . . 9 ⊢ (∃𝑘 ∈ ℕ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘) ↔ ¬ ∀𝑘 ∈ ℕ ¬ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘))
18	17	imbi2i 336	. . . . . . . 8 ⊢ ((𝑓:ℕ⟶𝑋 → ∃𝑘 ∈ ℕ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)) ↔ (𝑓:ℕ⟶𝑋 → ¬ ∀𝑘 ∈ ℕ ¬ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)))
19	18	albii 1819	. . . . . . 7 ⊢ (∀𝑓(𝑓:ℕ⟶𝑋 → ∃𝑘 ∈ ℕ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)) ↔ ∀𝑓(𝑓:ℕ⟶𝑋 → ¬ ∀𝑘 ∈ ℕ ¬ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)))
20		alinexa 1843	. . . . . . 7 ⊢ (∀𝑓(𝑓:ℕ⟶𝑋 → ¬ ∀𝑘 ∈ ℕ ¬ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)) ↔ ¬ ∃𝑓(𝑓:ℕ⟶𝑋 ∧ ∀𝑘 ∈ ℕ ¬ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)))
21	19, 20	bitri 275	. . . . . 6 ⊢ (∀𝑓(𝑓:ℕ⟶𝑋 → ∃𝑘 ∈ ℕ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)) ↔ ¬ ∃𝑓(𝑓:ℕ⟶𝑋 ∧ ∀𝑘 ∈ ℕ ¬ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)))
22		dfral2 3099	. . . . . . . 8 ⊢ (∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘) ↔ ¬ ∃𝑦 ∈ 𝑋 ¬ ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘))
23	22	rexbii 3094	. . . . . . 7 ⊢ (∃𝑘 ∈ ℕ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘) ↔ ∃𝑘 ∈ ℕ ¬ ∃𝑦 ∈ 𝑋 ¬ ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘))
24		rexnal 3100	. . . . . . 7 ⊢ (∃𝑘 ∈ ℕ ¬ ∃𝑦 ∈ 𝑋 ¬ ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘) ↔ ¬ ∀𝑘 ∈ ℕ ∃𝑦 ∈ 𝑋 ¬ ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘))
25	23, 24	bitri 275	. . . . . 6 ⊢ (∃𝑘 ∈ ℕ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘) ↔ ¬ ∀𝑘 ∈ ℕ ∃𝑦 ∈ 𝑋 ¬ ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘))
26	16, 21, 25	3imtr4i 292	. . . . 5 ⊢ (∀𝑓(𝑓:ℕ⟶𝑋 → ∃𝑘 ∈ ℕ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)) → ∃𝑘 ∈ ℕ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘))
27		nnre 12273	. . . . . . 7 ⊢ (𝑘 ∈ ℕ → 𝑘 ∈ ℝ)
28	27	anim1i 615	. . . . . 6 ⊢ ((𝑘 ∈ ℕ ∧ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘)) → (𝑘 ∈ ℝ ∧ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘)))
29	28	reximi2 3079	. . . . 5 ⊢ (∃𝑘 ∈ ℕ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘) → ∃𝑘 ∈ ℝ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘))
30	26, 29	syl 17	. . . 4 ⊢ (∀𝑓(𝑓:ℕ⟶𝑋 → ∃𝑘 ∈ ℕ ((𝐿‘(𝑓‘𝑘)) ≤ 1 → (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)) → ∃𝑘 ∈ ℝ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘))
31	5, 30	sylbi 217	. . 3 ⊢ (∀𝑓((𝑓:ℕ⟶𝑋 ∧ ∀𝑘 ∈ ℕ (𝐿‘(𝑓‘𝑘)) ≤ 1) → ∃𝑘 ∈ ℕ (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘) → ∃𝑘 ∈ ℝ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘))
32		nmoubi.y	. . . 4 ⊢ 𝑌 = (BaseSet‘𝑊)
33		nmoubi.l	. . . 4 ⊢ 𝐿 = (normCV‘𝑈)
34		nmoubi.m	. . . 4 ⊢ 𝑀 = (normCV‘𝑊)
35		nmoubi.3	. . . 4 ⊢ 𝑁 = (𝑈 normOpOLD 𝑊)
36		nmoubi.u	. . . 4 ⊢ 𝑈 ∈ NrmCVec
37		nmoubi.w	. . . 4 ⊢ 𝑊 ∈ NrmCVec
38	6, 32, 33, 34, 35, 36, 37	nmobndi 30794	. . 3 ⊢ (𝑇:𝑋⟶𝑌 → ((𝑁‘𝑇) ∈ ℝ ↔ ∃𝑘 ∈ ℝ ∀𝑦 ∈ 𝑋 ((𝐿‘𝑦) ≤ 1 → (𝑀‘(𝑇‘𝑦)) ≤ 𝑘)))
39	31, 38	imbitrrid 246	. 2 ⊢ (𝑇:𝑋⟶𝑌 → (∀𝑓((𝑓:ℕ⟶𝑋 ∧ ∀𝑘 ∈ ℕ (𝐿‘(𝑓‘𝑘)) ≤ 1) → ∃𝑘 ∈ ℕ (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘) → (𝑁‘𝑇) ∈ ℝ))
40	39	imp 406	1 ⊢ ((𝑇:𝑋⟶𝑌 ∧ ∀𝑓((𝑓:ℕ⟶𝑋 ∧ ∀𝑘 ∈ ℕ (𝐿‘(𝑓‘𝑘)) ≤ 1) → ∃𝑘 ∈ ℕ (𝑀‘(𝑇‘(𝑓‘𝑘))) ≤ 𝑘)) → (𝑁‘𝑇) ∈ ℝ)

Syntax hints:  ¬ wn 3   → wi 4   ∧ wa 395  ∀wal 1538   = wceq 1540  ∃wex 1779   ∈ wcel 2108  ∀wral 3061  ∃wrex 3070   class class class wbr 5143  ⟶wf 6557  ‘cfv 6561  (class class class)co 7431  ℝcr 11154  1c1 11156   ≤ cle 11296  ℕcn 12266  NrmCVeccnv 30603  BaseSetcba 30605  norm_CVcnmcv 30609   normOp_OLD cnmoo 30760

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2157  ax-12 2177  ax-ext 2708  ax-rep 5279  ax-sep 5296  ax-nul 5306  ax-pow 5365  ax-pr 5432  ax-un 7755  ax-inf2 9681  ax-cc 10475  ax-cnex 11211  ax-resscn 11212  ax-1cn 11213  ax-icn 11214  ax-addcl 11215  ax-addrcl 11216  ax-mulcl 11217  ax-mulrcl 11218  ax-mulcom 11219  ax-addass 11220  ax-mulass 11221  ax-distr 11222  ax-i2m1 11223  ax-1ne0 11224  ax-1rid 11225  ax-rnegex 11226  ax-rrecex 11227  ax-cnre 11228  ax-pre-lttri 11229  ax-pre-lttrn 11230  ax-pre-ltadd 11231  ax-pre-mulgt0 11232  ax-pre-sup 11233

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2065  df-mo 2540  df-eu 2569  df-clab 2715  df-cleq 2729  df-clel 2816  df-nfc 2892  df-ne 2941  df-nel 3047  df-ral 3062  df-rex 3071  df-rmo 3380  df-reu 3381  df-rab 3437  df-v 3482  df-sbc 3789  df-csb 3900  df-dif 3954  df-un 3956  df-in 3958  df-ss 3968  df-pss 3971  df-nul 4334  df-if 4526  df-pw 4602  df-sn 4627  df-pr 4629  df-op 4633  df-uni 4908  df-iun 4993  df-br 5144  df-opab 5206  df-mpt 5226  df-tr 5260  df-id 5578  df-eprel 5584  df-po 5592  df-so 5593  df-fr 5637  df-we 5639  df-xp 5691  df-rel 5692  df-cnv 5693  df-co 5694  df-dm 5695  df-rn 5696  df-res 5697  df-ima 5698  df-pred 6321  df-ord 6387  df-on 6388  df-lim 6389  df-suc 6390  df-iota 6514  df-fun 6563  df-fn 6564  df-f 6565  df-f1 6566  df-fo 6567  df-f1o 6568  df-fv 6569  df-riota 7388  df-ov 7434  df-oprab 7435  df-mpo 7436  df-om 7888  df-1st 8014  df-2nd 8015  df-frecs 8306  df-wrecs 8337  df-recs 8411  df-rdg 8450  df-er 8745  df-map 8868  df-en 8986  df-dom 8987  df-sdom 8988  df-sup 9482  df-pnf 11297  df-mnf 11298  df-xr 11299  df-ltxr 11300  df-le 11301  df-sub 11494  df-neg 11495  df-div 11921  df-nn 12267  df-2 12329  df-3 12330  df-n0 12527  df-z 12614  df-uz 12879  df-rp 13035  df-seq 14043  df-exp 14103  df-cj 15138  df-re 15139  df-im 15140  df-sqrt 15274  df-abs 15275  df-grpo 30512  df-gid 30513  df-ginv 30514  df-ablo 30564  df-vc 30578  df-nv 30611  df-va 30614  df-ba 30615  df-sm 30616  df-0v 30617  df-nmcv 30619  df-nmoo 30764

This theorem is referenced by: (None)