isumclim3 - Intuitionistic Logic Explorer

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Theorem isumclim3 11386

Description: The sequence of partial finite sums of a converging infinite series converges to the infinite sum of the series. Note that 𝑗 must not occur in 𝐴. (Contributed by NM, 9-Jan-2006.) (Revised by Mario Carneiro, 23-Apr-2014.)

**Hypotheses**
Ref	Expression
isumclim3.1	⊢ 𝑍 = (ℤ_≥‘𝑀)
isumclim3.2	⊢ (𝜑 → 𝑀 ∈ ℤ)
isumclim3.3	⊢ (𝜑 → 𝐹 ∈ dom ⇝ )
isumclim3.4	⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → 𝐴 ∈ ℂ)
isumclim3.5	⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹‘𝑗) = Σ𝑘 ∈ (𝑀...𝑗)𝐴)

**Assertion**
Ref	Expression
isumclim3	⊢ (𝜑 → 𝐹 ⇝ Σ𝑘 ∈ 𝑍 𝐴)

Distinct variable groups: 𝐴,𝑗 𝑗,𝑘,𝑀 𝜑,𝑗,𝑘 𝑗,𝑍,𝑘 𝑗,𝐹 Allowed substitution hints: 𝐴(𝑘) 𝐹(𝑘)

Proof of Theorem isumclim3 Dummy variables 𝑚 𝑥 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		isumclim3.3	. . 3 ⊢ (𝜑 → 𝐹 ∈ dom ⇝ )
2		climdm 11258	. . 3 ⊢ (𝐹 ∈ dom ⇝ ↔ 𝐹 ⇝ ( ⇝ ‘𝐹))
3	1, 2	sylib 121	. 2 ⊢ (𝜑 → 𝐹 ⇝ ( ⇝ ‘𝐹))
4		isumclim3.1	. . . 4 ⊢ 𝑍 = (ℤ_≥‘𝑀)
5		isumclim3.2	. . . 4 ⊢ (𝜑 → 𝑀 ∈ ℤ)
6		eqidd 2171	. . . 4 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑍) → ((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚) = ((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚))
7		isumclim3.4	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → 𝐴 ∈ ℂ)
8	7	fmpttd 5651	. . . . 5 ⊢ (𝜑 → (𝑘 ∈ 𝑍 ↦ 𝐴):𝑍⟶ℂ)
9	8	ffvelrnda 5631	. . . 4 ⊢ ((𝜑 ∧ 𝑚 ∈ 𝑍) → ((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚) ∈ ℂ)
10	4, 5, 6, 9	isum 11348	. . 3 ⊢ (𝜑 → Σ𝑚 ∈ 𝑍 ((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚) = ( ⇝ ‘seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐴))))
11	7	ralrimiva 2543	. . . 4 ⊢ (𝜑 → ∀𝑘 ∈ 𝑍 𝐴 ∈ ℂ)
12		sumfct 11337	. . . 4 ⊢ (∀𝑘 ∈ 𝑍 𝐴 ∈ ℂ → Σ𝑚 ∈ 𝑍 ((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚) = Σ𝑘 ∈ 𝑍 𝐴)
13	11, 12	syl 14	. . 3 ⊢ (𝜑 → Σ𝑚 ∈ 𝑍 ((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚) = Σ𝑘 ∈ 𝑍 𝐴)
14		seqex 10403	. . . . . . 7 ⊢ seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐴)) ∈ V
15	14	a1i 9	. . . . . 6 ⊢ (𝜑 → seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐴)) ∈ V)
16		isumclim3.5	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐹‘𝑗) = Σ𝑘 ∈ (𝑀...𝑗)𝐴)
17		simpl 108	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝜑)
18		fvres 5520	. . . . . . . . . . 11 ⊢ (𝑚 ∈ (𝑀...𝑗) → (((𝑘 ∈ 𝑍 ↦ 𝐴) ↾ (𝑀...𝑗))‘𝑚) = ((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚))
19		fzssuz 10021	. . . . . . . . . . . . . 14 ⊢ (𝑀...𝑗) ⊆ (ℤ_≥‘𝑀)
20	19, 4	sseqtrri 3182	. . . . . . . . . . . . 13 ⊢ (𝑀...𝑗) ⊆ 𝑍
21		resmpt 4939	. . . . . . . . . . . . 13 ⊢ ((𝑀...𝑗) ⊆ 𝑍 → ((𝑘 ∈ 𝑍 ↦ 𝐴) ↾ (𝑀...𝑗)) = (𝑘 ∈ (𝑀...𝑗) ↦ 𝐴))
22	20, 21	ax-mp 5	. . . . . . . . . . . 12 ⊢ ((𝑘 ∈ 𝑍 ↦ 𝐴) ↾ (𝑀...𝑗)) = (𝑘 ∈ (𝑀...𝑗) ↦ 𝐴)
23	22	fveq1i 5497	. . . . . . . . . . 11 ⊢ (((𝑘 ∈ 𝑍 ↦ 𝐴) ↾ (𝑀...𝑗))‘𝑚) = ((𝑘 ∈ (𝑀...𝑗) ↦ 𝐴)‘𝑚)
24	18, 23	eqtr3di 2218	. . . . . . . . . 10 ⊢ (𝑚 ∈ (𝑀...𝑗) → ((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚) = ((𝑘 ∈ (𝑀...𝑗) ↦ 𝐴)‘𝑚))
25	24	sumeq2i 11327	. . . . . . . . 9 ⊢ Σ𝑚 ∈ (𝑀...𝑗)((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚) = Σ𝑚 ∈ (𝑀...𝑗)((𝑘 ∈ (𝑀...𝑗) ↦ 𝐴)‘𝑚)
26		ssralv 3211	. . . . . . . . . . 11 ⊢ ((𝑀...𝑗) ⊆ 𝑍 → (∀𝑘 ∈ 𝑍 𝐴 ∈ ℂ → ∀𝑘 ∈ (𝑀...𝑗)𝐴 ∈ ℂ))
27	20, 11, 26	mpsyl 65	. . . . . . . . . 10 ⊢ (𝜑 → ∀𝑘 ∈ (𝑀...𝑗)𝐴 ∈ ℂ)
28		sumfct 11337	. . . . . . . . . 10 ⊢ (∀𝑘 ∈ (𝑀...𝑗)𝐴 ∈ ℂ → Σ𝑚 ∈ (𝑀...𝑗)((𝑘 ∈ (𝑀...𝑗) ↦ 𝐴)‘𝑚) = Σ𝑘 ∈ (𝑀...𝑗)𝐴)
29	27, 28	syl 14	. . . . . . . . 9 ⊢ (𝜑 → Σ𝑚 ∈ (𝑀...𝑗)((𝑘 ∈ (𝑀...𝑗) ↦ 𝐴)‘𝑚) = Σ𝑘 ∈ (𝑀...𝑗)𝐴)
30	25, 29	eqtrid 2215	. . . . . . . 8 ⊢ (𝜑 → Σ𝑚 ∈ (𝑀...𝑗)((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚) = Σ𝑘 ∈ (𝑀...𝑗)𝐴)
31	17, 30	syl 14	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → Σ𝑚 ∈ (𝑀...𝑗)((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚) = Σ𝑘 ∈ (𝑀...𝑗)𝐴)
32		eqidd 2171	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ 𝑚 ∈ (ℤ_≥‘𝑀)) → ((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚) = ((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚))
33		simpr 109	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝑗 ∈ 𝑍)
34	33, 4	eleqtrdi 2263	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝑗 ∈ (ℤ_≥‘𝑀))
35	4	eleq2i 2237	. . . . . . . . . 10 ⊢ (𝑚 ∈ 𝑍 ↔ 𝑚 ∈ (ℤ_≥‘𝑀))
36	35	biimpri 132	. . . . . . . . 9 ⊢ (𝑚 ∈ (ℤ_≥‘𝑀) → 𝑚 ∈ 𝑍)
37	17, 36, 9	syl2an 287	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ 𝑚 ∈ (ℤ_≥‘𝑀)) → ((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚) ∈ ℂ)
38	32, 34, 37	fsum3ser 11360	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → Σ𝑚 ∈ (𝑀...𝑗)((𝑘 ∈ 𝑍 ↦ 𝐴)‘𝑚) = (seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐴))‘𝑗))
39	16, 31, 38	3eqtr2rd 2210	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐴))‘𝑗) = (𝐹‘𝑗))
40	4, 15, 1, 5, 39	climeq 11262	. . . . 5 ⊢ (𝜑 → (seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐴)) ⇝ 𝑥 ↔ 𝐹 ⇝ 𝑥))
41	40	iotabidv 5181	. . . 4 ⊢ (𝜑 → (℩𝑥seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐴)) ⇝ 𝑥) = (℩𝑥𝐹 ⇝ 𝑥))
42		df-fv 5206	. . . 4 ⊢ ( ⇝ ‘seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐴))) = (℩𝑥seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐴)) ⇝ 𝑥)
43		df-fv 5206	. . . 4 ⊢ ( ⇝ ‘𝐹) = (℩𝑥𝐹 ⇝ 𝑥)
44	41, 42, 43	3eqtr4g 2228	. . 3 ⊢ (𝜑 → ( ⇝ ‘seq𝑀( + , (𝑘 ∈ 𝑍 ↦ 𝐴))) = ( ⇝ ‘𝐹))
45	10, 13, 44	3eqtr3d 2211	. 2 ⊢ (𝜑 → Σ𝑘 ∈ 𝑍 𝐴 = ( ⇝ ‘𝐹))
46	3, 45	breqtrrd 4017	1 ⊢ (𝜑 → 𝐹 ⇝ Σ𝑘 ∈ 𝑍 𝐴)

Colors of variables: wff set class

Syntax hints: → wi 4 ∧ wa 103 = wceq 1348 ∈ wcel 2141 ∀wral 2448 Vcvv 2730 ⊆ wss 3121 class class class wbr 3989 ↦ cmpt 4050 dom cdm 4611 ↾ cres 4613 ℩cio 5158 ‘cfv 5198 (class class class)co 5853 ℂcc 7772 + caddc 7777 ℤcz 9212 ℤ_≥cuz 9487 ...cfz 9965 seqcseq 10401 ⇝ cli 11241 Σcsu 11316

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-13 2143 ax-14 2144 ax-ext 2152 ax-coll 4104 ax-sep 4107 ax-nul 4115 ax-pow 4160 ax-pr 4194 ax-un 4418 ax-setind 4521 ax-iinf 4572 ax-cnex 7865 ax-resscn 7866 ax-1cn 7867 ax-1re 7868 ax-icn 7869 ax-addcl 7870 ax-addrcl 7871 ax-mulcl 7872 ax-mulrcl 7873 ax-addcom 7874 ax-mulcom 7875 ax-addass 7876 ax-mulass 7877 ax-distr 7878 ax-i2m1 7879 ax-0lt1 7880 ax-1rid 7881 ax-0id 7882 ax-rnegex 7883 ax-precex 7884 ax-cnre 7885 ax-pre-ltirr 7886 ax-pre-ltwlin 7887 ax-pre-lttrn 7888 ax-pre-apti 7889 ax-pre-ltadd 7890 ax-pre-mulgt0 7891 ax-pre-mulext 7892 ax-arch 7893 ax-caucvg 7894

This theorem depends on definitions: df-bi 116 df-dc 830 df-3or 974 df-3an 975 df-tru 1351 df-fal 1354 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ne 2341 df-nel 2436 df-ral 2453 df-rex 2454 df-reu 2455 df-rmo 2456 df-rab 2457 df-v 2732 df-sbc 2956 df-csb 3050 df-dif 3123 df-un 3125 df-in 3127 df-ss 3134 df-nul 3415 df-if 3527 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-int 3832 df-iun 3875 df-br 3990 df-opab 4051 df-mpt 4052 df-tr 4088 df-id 4278 df-po 4281 df-iso 4282 df-iord 4351 df-on 4353 df-ilim 4354 df-suc 4356 df-iom 4575 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-dm 4621 df-rn 4622 df-res 4623 df-ima 4624 df-iota 5160 df-fun 5200 df-fn 5201 df-f 5202 df-f1 5203 df-fo 5204 df-f1o 5205 df-fv 5206 df-isom 5207 df-riota 5809 df-ov 5856 df-oprab 5857 df-mpo 5858 df-1st 6119 df-2nd 6120 df-recs 6284 df-irdg 6349 df-frec 6370 df-1o 6395 df-oadd 6399 df-er 6513 df-en 6719 df-dom 6720 df-fin 6721 df-pnf 7956 df-mnf 7957 df-xr 7958 df-ltxr 7959 df-le 7960 df-sub 8092 df-neg 8093 df-reap 8494 df-ap 8501 df-div 8590 df-inn 8879 df-2 8937 df-3 8938 df-4 8939 df-n0 9136 df-z 9213 df-uz 9488 df-q 9579 df-rp 9611 df-fz 9966 df-fzo 10099 df-seqfrec 10402 df-exp 10476 df-ihash 10710 df-cj 10806 df-re 10807 df-im 10808 df-rsqrt 10962 df-abs 10963 df-clim 11242 df-sumdc 11317

This theorem is referenced by: (None)

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