esumsup - Mathbox for Thierry Arnoux

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Theorem esumsup 33552

Description: Express an extended sum as a supremum of extended sums. (Contributed by Thierry Arnoux, 24-May-2020.)

**Hypotheses**
Ref	Expression
esumsup.1	⊢ (𝜑 → 𝐵 ∈ (0[,]+∞))
esumsup.2	⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → 𝐴 ∈ (0[,]+∞))

**Assertion**
Ref	Expression
esumsup	⊢ (𝜑 → Σ^𝑘 ∈ ℕ𝐴 = sup(ran (𝑛 ∈ ℕ ↦ Σ^𝑘 ∈ (1...𝑛)𝐴), ℝ^*, < ))

Distinct variable groups: 𝐴,𝑛 𝐵,𝑛 𝑘,𝑛,𝜑 Allowed substitution hints: 𝐴(𝑘) 𝐵(𝑘)

**Proof of Theorem esumsup**
Step	Hyp	Ref	Expression
1		esumsup.2	. . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → 𝐴 ∈ (0[,]+∞))
2	1	fmpttd 7116	. . 3 ⊢ (𝜑 → (𝑘 ∈ ℕ ↦ 𝐴):ℕ⟶(0[,]+∞))
3		nfmpt1 5256	. . . 4 ⊢ Ⅎ𝑘(𝑘 ∈ ℕ ↦ 𝐴)
4	3	esumfsup 33533	. . 3 ⊢ ((𝑘 ∈ ℕ ↦ 𝐴):ℕ⟶(0[,]+∞) → Σ^𝑘 ∈ ℕ((𝑘 ∈ ℕ ↦ 𝐴)‘𝑘) = sup(ran seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)), ℝ^, < ))
5	2, 4	syl 17	. 2 ⊢ (𝜑 → Σ^𝑘 ∈ ℕ((𝑘 ∈ ℕ ↦ 𝐴)‘𝑘) = sup(ran seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)), ℝ^, < ))
6		simpr 484	. . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → 𝑘 ∈ ℕ)
7		eqid 2731	. . . . 5 ⊢ (𝑘 ∈ ℕ ↦ 𝐴) = (𝑘 ∈ ℕ ↦ 𝐴)
8	7	fvmpt2 7009	. . . 4 ⊢ ((𝑘 ∈ ℕ ∧ 𝐴 ∈ (0[,]+∞)) → ((𝑘 ∈ ℕ ↦ 𝐴)‘𝑘) = 𝐴)
9	6, 1, 8	syl2anc 583	. . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → ((𝑘 ∈ ℕ ↦ 𝐴)‘𝑘) = 𝐴)
10	9	esumeq2dv 33501	. 2 ⊢ (𝜑 → Σ^𝑘 ∈ ℕ((𝑘 ∈ ℕ ↦ 𝐴)‘𝑘) = Σ^𝑘 ∈ ℕ𝐴)
11		1z 12599	. . . . . . . . 9 ⊢ 1 ∈ ℤ
12		seqfn 13985	. . . . . . . . 9 ⊢ (1 ∈ ℤ → seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)) Fn (ℤ_≥‘1))
13	11, 12	ax-mp 5	. . . . . . . 8 ⊢ seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)) Fn (ℤ_≥‘1)
14		nnuz 12872	. . . . . . . . 9 ⊢ ℕ = (ℤ_≥‘1)
15	14	fneq2i 6647	. . . . . . . 8 ⊢ (seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)) Fn ℕ ↔ seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)) Fn (ℤ_≥‘1))
16	13, 15	mpbir 230	. . . . . . 7 ⊢ seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)) Fn ℕ
17		nfcv 2902	. . . . . . . 8 ⊢ Ⅎ𝑛seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴))
18	17	dffn5f 6963	. . . . . . 7 ⊢ (seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)) Fn ℕ ↔ seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)) = (𝑛 ∈ ℕ ↦ (seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴))‘𝑛)))
19	16, 18	mpbi 229	. . . . . 6 ⊢ seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)) = (𝑛 ∈ ℕ ↦ (seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴))‘𝑛))
20	19	a1i 11	. . . . 5 ⊢ (𝜑 → seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)) = (𝑛 ∈ ℕ ↦ (seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴))‘𝑛)))
21		fz1ssnn 13539	. . . . . . . . . . 11 ⊢ (1...𝑛) ⊆ ℕ
22	21	a1i 11	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (1...𝑛) ⊆ ℕ)
23	22	sselda 3982	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑘 ∈ (1...𝑛)) → 𝑘 ∈ ℕ)
24		simpll 764	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑘 ∈ (1...𝑛)) → 𝜑)
25	24, 23, 1	syl2anc 583	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑘 ∈ (1...𝑛)) → 𝐴 ∈ (0[,]+∞))
26	23, 25, 8	syl2anc 583	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑘 ∈ (1...𝑛)) → ((𝑘 ∈ ℕ ↦ 𝐴)‘𝑘) = 𝐴)
27	26	esumeq2dv 33501	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → Σ^𝑘 ∈ (1...𝑛)((𝑘 ∈ ℕ ↦ 𝐴)‘𝑘) = Σ^𝑘 ∈ (1...𝑛)𝐴)
28	3	esumfzf 33532	. . . . . . . 8 ⊢ (((𝑘 ∈ ℕ ↦ 𝐴):ℕ⟶(0[,]+∞) ∧ 𝑛 ∈ ℕ) → Σ^*𝑘 ∈ (1...𝑛)((𝑘 ∈ ℕ ↦ 𝐴)‘𝑘) = (seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴))‘𝑛))
29	2, 28	sylan 579	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → Σ^*𝑘 ∈ (1...𝑛)((𝑘 ∈ ℕ ↦ 𝐴)‘𝑘) = (seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴))‘𝑛))
30	27, 29	eqtr3d 2773	. . . . . 6 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → Σ^*𝑘 ∈ (1...𝑛)𝐴 = (seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴))‘𝑛))
31	30	mpteq2dva 5248	. . . . 5 ⊢ (𝜑 → (𝑛 ∈ ℕ ↦ Σ^*𝑘 ∈ (1...𝑛)𝐴) = (𝑛 ∈ ℕ ↦ (seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴))‘𝑛)))
32	20, 31	eqtr4d 2774	. . . 4 ⊢ (𝜑 → seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)) = (𝑛 ∈ ℕ ↦ Σ^*𝑘 ∈ (1...𝑛)𝐴))
33	32	rneqd 5937	. . 3 ⊢ (𝜑 → ran seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)) = ran (𝑛 ∈ ℕ ↦ Σ^*𝑘 ∈ (1...𝑛)𝐴))
34	33	supeq1d 9447	. 2 ⊢ (𝜑 → sup(ran seq1( +_𝑒 , (𝑘 ∈ ℕ ↦ 𝐴)), ℝ^, < ) = sup(ran (𝑛 ∈ ℕ ↦ Σ^𝑘 ∈ (1...𝑛)𝐴), ℝ^*, < ))
35	5, 10, 34	3eqtr3d 2779	1 ⊢ (𝜑 → Σ^𝑘 ∈ ℕ𝐴 = sup(ran (𝑛 ∈ ℕ ↦ Σ^𝑘 ∈ (1...𝑛)𝐴), ℝ^*, < ))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1540 ∈ wcel 2105 ⊆ wss 3948 ↦ cmpt 5231 ran crn 5677 Fn wfn 6538 ⟶wf 6539 ‘cfv 6543 (class class class)co 7412 supcsup 9441 0cc0 11116 1c1 11117 +∞cpnf 11252 ℝ^*cxr 11254 < clt 11255 ℕcn 12219 ℤcz 12565 ℤ_≥cuz 12829 +_𝑒 cxad 13097 [,]cicc 13334 ...cfz 13491 seqcseq 13973 Σ^*cesum 33490

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2702 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7729 ax-inf2 9642 ax-cnex 11172 ax-resscn 11173 ax-1cn 11174 ax-icn 11175 ax-addcl 11176 ax-addrcl 11177 ax-mulcl 11178 ax-mulrcl 11179 ax-mulcom 11180 ax-addass 11181 ax-mulass 11182 ax-distr 11183 ax-i2m1 11184 ax-1ne0 11185 ax-1rid 11186 ax-rnegex 11187 ax-rrecex 11188 ax-cnre 11189 ax-pre-lttri 11190 ax-pre-lttrn 11191 ax-pre-ltadd 11192 ax-pre-mulgt0 11193 ax-pre-sup 11194 ax-addf 11195 ax-mulf 11196

This theorem depends on definitions: df-bi 206 df-an 396 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-rmo 3375 df-reu 3376 df-rab 3432 df-v 3475 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-tp 4633 df-op 4635 df-uni 4909 df-int 4951 df-iun 4999 df-iin 5000 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-se 5632 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 6300 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-isom 6552 df-riota 7368 df-ov 7415 df-oprab 7416 df-mpo 7417 df-of 7674 df-om 7860 df-1st 7979 df-2nd 7980 df-supp 8152 df-frecs 8272 df-wrecs 8303 df-recs 8377 df-rdg 8416 df-1o 8472 df-2o 8473 df-er 8709 df-map 8828 df-pm 8829 df-ixp 8898 df-en 8946 df-dom 8947 df-sdom 8948 df-fin 8949 df-fsupp 9368 df-fi 9412 df-sup 9443 df-inf 9444 df-oi 9511 df-card 9940 df-pnf 11257 df-mnf 11258 df-xr 11259 df-ltxr 11260 df-le 11261 df-sub 11453 df-neg 11454 df-div 11879 df-nn 12220 df-2 12282 df-3 12283 df-4 12284 df-5 12285 df-6 12286 df-7 12287 df-8 12288 df-9 12289 df-n0 12480 df-z 12566 df-dec 12685 df-uz 12830 df-q 12940 df-rp 12982 df-xneg 13099 df-xadd 13100 df-xmul 13101 df-ioo 13335 df-ioc 13336 df-ico 13337 df-icc 13338 df-fz 13492 df-fzo 13635 df-fl 13764 df-mod 13842 df-seq 13974 df-exp 14035 df-fac 14241 df-bc 14270 df-hash 14298 df-shft 15021 df-cj 15053 df-re 15054 df-im 15055 df-sqrt 15189 df-abs 15190 df-limsup 15422 df-clim 15439 df-rlim 15440 df-sum 15640 df-ef 16018 df-sin 16020 df-cos 16021 df-pi 16023 df-struct 17087 df-sets 17104 df-slot 17122 df-ndx 17134 df-base 17152 df-ress 17181 df-plusg 17217 df-mulr 17218 df-starv 17219 df-sca 17220 df-vsca 17221 df-ip 17222 df-tset 17223 df-ple 17224 df-ds 17226 df-unif 17227 df-hom 17228 df-cco 17229 df-rest 17375 df-topn 17376 df-0g 17394 df-gsum 17395 df-topgen 17396 df-pt 17397 df-prds 17400 df-ordt 17454 df-xrs 17455 df-qtop 17460 df-imas 17461 df-xps 17463 df-mre 17537 df-mrc 17538 df-acs 17540 df-ps 18529 df-tsr 18530 df-plusf 18570 df-mgm 18571 df-sgrp 18650 df-mnd 18666 df-mhm 18711 df-submnd 18712 df-grp 18864 df-minusg 18865 df-sbg 18866 df-mulg 18994 df-subg 19046 df-cntz 19229 df-cmn 19698 df-abl 19699 df-mgp 20036 df-rng 20054 df-ur 20083 df-ring 20136 df-cring 20137 df-subrng 20442 df-subrg 20467 df-abv 20656 df-lmod 20704 df-scaf 20705 df-sra 21019 df-rgmod 21020 df-psmet 21225 df-xmet 21226 df-met 21227 df-bl 21228 df-mopn 21229 df-fbas 21230 df-fg 21231 df-cnfld 21234 df-top 22716 df-topon 22733 df-topsp 22755 df-bases 22769 df-cld 22843 df-ntr 22844 df-cls 22845 df-nei 22922 df-lp 22960 df-perf 22961 df-cn 23051 df-cnp 23052 df-haus 23139 df-tx 23386 df-hmeo 23579 df-fil 23670 df-fm 23762 df-flim 23763 df-flf 23764 df-tmd 23896 df-tgp 23897 df-tsms 23951 df-trg 23984 df-xms 24146 df-ms 24147 df-tms 24148 df-nm 24411 df-ngp 24412 df-nrg 24414 df-nlm 24415 df-ii 24717 df-cncf 24718 df-limc 25715 df-dv 25716 df-log 26405 df-esum 33491

This theorem is referenced by: esumgect 33553

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