esumval - Mathbox for Thierry Arnoux

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Theorem esumval 31914

Description: Develop the value of the extended sum. (Contributed by Thierry Arnoux, 4-Jan-2017.)

**Hypotheses**
Ref	Expression
esumval.p	⊢ Ⅎ𝑘𝜑
esumval.0	⊢ Ⅎ𝑘𝐴
esumval.1	⊢ (𝜑 → 𝐴 ∈ 𝑉)
esumval.2	⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ (0[,]+∞))
esumval.3	⊢ ((𝜑 ∧ 𝑥 ∈ (𝒫 𝐴 ∩ Fin)) → ((ℝ^*_𝑠 ↾_s (0[,]+∞)) Σ_g (𝑘 ∈ 𝑥 ↦ 𝐵)) = 𝐶)

**Assertion**
Ref	Expression
esumval	⊢ (𝜑 → Σ^𝑘 ∈ 𝐴𝐵 = sup(ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 𝐶), ℝ^, < ))

Distinct variable groups: 𝑥,𝑘 𝑥,𝐴 𝜑,𝑥 𝑥,𝐵 Allowed substitution hints: 𝜑(𝑘) 𝐴(𝑘) 𝐵(𝑘) 𝐶(𝑥,𝑘) 𝑉(𝑥,𝑘)

**Proof of Theorem esumval**
Step	Hyp	Ref	Expression
1		df-esum 31896	. . 3 ⊢ Σ^𝑘 ∈ 𝐴𝐵 = ∪ ((ℝ^_𝑠 ↾_s (0[,]+∞)) tsums (𝑘 ∈ 𝐴 ↦ 𝐵))
2		eqid 2738	. . . . 5 ⊢ (ℝ^_𝑠 ↾_s (0[,]+∞)) = (ℝ^_𝑠 ↾_s (0[,]+∞))
3		esumval.1	. . . . 5 ⊢ (𝜑 → 𝐴 ∈ 𝑉)
4		esumval.p	. . . . . 6 ⊢ Ⅎ𝑘𝜑
5		esumval.0	. . . . . 6 ⊢ Ⅎ𝑘𝐴
6		nfcv 2906	. . . . . 6 ⊢ Ⅎ𝑘(0[,]+∞)
7		esumval.2	. . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ (0[,]+∞))
8		eqid 2738	. . . . . 6 ⊢ (𝑘 ∈ 𝐴 ↦ 𝐵) = (𝑘 ∈ 𝐴 ↦ 𝐵)
9	4, 5, 6, 7, 8	fmptdF 30895	. . . . 5 ⊢ (𝜑 → (𝑘 ∈ 𝐴 ↦ 𝐵):𝐴⟶(0[,]+∞))
10		inss1 4159	. . . . . . . . . . . . . 14 ⊢ (𝒫 𝐴 ∩ Fin) ⊆ 𝒫 𝐴
11	10	sseli 3913	. . . . . . . . . . . . 13 ⊢ (𝑥 ∈ (𝒫 𝐴 ∩ Fin) → 𝑥 ∈ 𝒫 𝐴)
12	11	elpwid 4541	. . . . . . . . . . . 12 ⊢ (𝑥 ∈ (𝒫 𝐴 ∩ Fin) → 𝑥 ⊆ 𝐴)
13	12	adantl 481	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝒫 𝐴 ∩ Fin)) → 𝑥 ⊆ 𝐴)
14		nfcv 2906	. . . . . . . . . . . 12 ⊢ Ⅎ𝑘𝑥
15	5, 14	resmptf 5936	. . . . . . . . . . 11 ⊢ (𝑥 ⊆ 𝐴 → ((𝑘 ∈ 𝐴 ↦ 𝐵) ↾ 𝑥) = (𝑘 ∈ 𝑥 ↦ 𝐵))
16	13, 15	syl 17	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝒫 𝐴 ∩ Fin)) → ((𝑘 ∈ 𝐴 ↦ 𝐵) ↾ 𝑥) = (𝑘 ∈ 𝑥 ↦ 𝐵))
17	16	oveq2d 7271	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝒫 𝐴 ∩ Fin)) → ((ℝ^_𝑠 ↾_s (0[,]+∞)) Σ_g ((𝑘 ∈ 𝐴 ↦ 𝐵) ↾ 𝑥)) = ((ℝ^_𝑠 ↾_s (0[,]+∞)) Σ_g (𝑘 ∈ 𝑥 ↦ 𝐵)))
18		esumval.3	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝒫 𝐴 ∩ Fin)) → ((ℝ^*_𝑠 ↾_s (0[,]+∞)) Σ_g (𝑘 ∈ 𝑥 ↦ 𝐵)) = 𝐶)
19	17, 18	eqtr2d 2779	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝒫 𝐴 ∩ Fin)) → 𝐶 = ((ℝ^*_𝑠 ↾_s (0[,]+∞)) Σ_g ((𝑘 ∈ 𝐴 ↦ 𝐵) ↾ 𝑥)))
20	19	mpteq2dva 5170	. . . . . . 7 ⊢ (𝜑 → (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 𝐶) = (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ ((ℝ^*_𝑠 ↾_s (0[,]+∞)) Σ_g ((𝑘 ∈ 𝐴 ↦ 𝐵) ↾ 𝑥))))
21	20	rneqd 5836	. . . . . 6 ⊢ (𝜑 → ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 𝐶) = ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ ((ℝ^*_𝑠 ↾_s (0[,]+∞)) Σ_g ((𝑘 ∈ 𝐴 ↦ 𝐵) ↾ 𝑥))))
22	21	supeq1d 9135	. . . . 5 ⊢ (𝜑 → sup(ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 𝐶), ℝ^, < ) = sup(ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ ((ℝ^_𝑠 ↾_s (0[,]+∞)) Σ_g ((𝑘 ∈ 𝐴 ↦ 𝐵) ↾ 𝑥))), ℝ^*, < ))
23	2, 3, 9, 22	xrge0tsmsd 31219	. . . 4 ⊢ (𝜑 → ((ℝ^_𝑠 ↾_s (0[,]+∞)) tsums (𝑘 ∈ 𝐴 ↦ 𝐵)) = {sup(ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 𝐶), ℝ^, < )})
24	23	unieqd 4850	. . 3 ⊢ (𝜑 → ∪ ((ℝ^_𝑠 ↾_s (0[,]+∞)) tsums (𝑘 ∈ 𝐴 ↦ 𝐵)) = ∪ {sup(ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 𝐶), ℝ^, < )})
25	1, 24	syl5eq 2791	. 2 ⊢ (𝜑 → Σ^𝑘 ∈ 𝐴𝐵 = ∪ {sup(ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 𝐶), ℝ^, < )})
26		xrltso 12804	. . . 4 ⊢ < Or ℝ^*
27	26	supex 9152	. . 3 ⊢ sup(ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 𝐶), ℝ^*, < ) ∈ V
28	27	unisn 4858	. 2 ⊢ ∪ {sup(ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 𝐶), ℝ^, < )} = sup(ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 𝐶), ℝ^, < )
29	25, 28	eqtrdi 2795	1 ⊢ (𝜑 → Σ^𝑘 ∈ 𝐴𝐵 = sup(ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 𝐶), ℝ^, < ))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 Ⅎwnf 1787 ∈ wcel 2108 Ⅎwnfc 2886 ∩ cin 3882 ⊆ wss 3883 𝒫 cpw 4530 {csn 4558 ∪ cuni 4836 ↦ cmpt 5153 ran crn 5581 ↾ cres 5582 (class class class)co 7255 Fincfn 8691 supcsup 9129 0cc0 10802 +∞cpnf 10937 ℝ^*cxr 10939 < clt 10940 [,]cicc 13011 ↾_s cress 16867 Σ_g cgsu 17068 ℝ^*_𝑠cxrs 17128 tsums ctsu 23185 Σ^*cesum 31895

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 ax-pre-sup 10880

This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-iin 4924 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-se 5536 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-isom 6427 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-of 7511 df-om 7688 df-1st 7804 df-2nd 7805 df-supp 7949 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-er 8456 df-map 8575 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-fsupp 9059 df-fi 9100 df-sup 9131 df-inf 9132 df-oi 9199 df-card 9628 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-div 11563 df-nn 11904 df-2 11966 df-3 11967 df-4 11968 df-5 11969 df-6 11970 df-7 11971 df-8 11972 df-9 11973 df-n0 12164 df-z 12250 df-dec 12367 df-uz 12512 df-q 12618 df-xadd 12778 df-ioo 13012 df-ioc 13013 df-ico 13014 df-icc 13015 df-fz 13169 df-fzo 13312 df-seq 13650 df-hash 13973 df-struct 16776 df-sets 16793 df-slot 16811 df-ndx 16823 df-base 16841 df-ress 16868 df-plusg 16901 df-mulr 16902 df-tset 16907 df-ple 16908 df-ds 16910 df-rest 17050 df-topn 17051 df-0g 17069 df-gsum 17070 df-topgen 17071 df-ordt 17129 df-xrs 17130 df-mre 17212 df-mrc 17213 df-acs 17215 df-ps 18199 df-tsr 18200 df-mgm 18241 df-sgrp 18290 df-mnd 18301 df-submnd 18346 df-cntz 18838 df-cmn 19303 df-fbas 20507 df-fg 20508 df-top 21951 df-topon 21968 df-topsp 21990 df-bases 22004 df-ntr 22079 df-nei 22157 df-cn 22286 df-haus 22374 df-fil 22905 df-fm 22997 df-flim 22998 df-flf 22999 df-tsms 23186 df-esum 31896

This theorem is referenced by: esumel 31915 esumnul 31916 esum0 31917 gsumesum 31927 esumlub 31928 esumcst 31931 esumpcvgval 31946 esumcvg 31954 esum2d 31961

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