Mathbox for Glauco Siliprandi |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > sge0ss | Structured version Visualization version GIF version |
Description: Change the index set to a subset in a sum of nonnegative extended reals. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
Ref | Expression |
---|---|
sge0ss.kph | ⊢ Ⅎ𝑘𝜑 |
sge0ss.b | ⊢ (𝜑 → 𝐵 ∈ 𝑉) |
sge0ss.a | ⊢ (𝜑 → 𝐴 ⊆ 𝐵) |
sge0ss.c | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐶 ∈ (0[,]+∞)) |
sge0ss.c0 | ⊢ ((𝜑 ∧ 𝑘 ∈ (𝐵 ∖ 𝐴)) → 𝐶 = 0) |
Ref | Expression |
---|---|
sge0ss | ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) = (Σ^‘(𝑘 ∈ 𝐵 ↦ 𝐶))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sge0ss.kph | . . . 4 ⊢ Ⅎ𝑘𝜑 | |
2 | sge0ss.a | . . . . 5 ⊢ (𝜑 → 𝐴 ⊆ 𝐵) | |
3 | sge0ss.b | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ 𝑉) | |
4 | ssexg 5242 | . . . . 5 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ∈ 𝑉) → 𝐴 ∈ V) | |
5 | 2, 3, 4 | syl2anc 583 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ V) |
6 | 3 | difexd 5248 | . . . 4 ⊢ (𝜑 → (𝐵 ∖ 𝐴) ∈ V) |
7 | disjdif 4402 | . . . . 5 ⊢ (𝐴 ∩ (𝐵 ∖ 𝐴)) = ∅ | |
8 | 7 | a1i 11 | . . . 4 ⊢ (𝜑 → (𝐴 ∩ (𝐵 ∖ 𝐴)) = ∅) |
9 | sge0ss.c | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐶 ∈ (0[,]+∞)) | |
10 | sge0ss.c0 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝐵 ∖ 𝐴)) → 𝐶 = 0) | |
11 | 0e0iccpnf 13120 | . . . . . 6 ⊢ 0 ∈ (0[,]+∞) | |
12 | 11 | a1i 11 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝐵 ∖ 𝐴)) → 0 ∈ (0[,]+∞)) |
13 | 10, 12 | eqeltrd 2839 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝐵 ∖ 𝐴)) → 𝐶 ∈ (0[,]+∞)) |
14 | 1, 5, 6, 8, 9, 13 | sge0splitmpt 43839 | . . 3 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ (𝐴 ∪ (𝐵 ∖ 𝐴)) ↦ 𝐶)) = ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶)))) |
15 | 14 | eqcomd 2744 | . 2 ⊢ (𝜑 → ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶))) = (Σ^‘(𝑘 ∈ (𝐴 ∪ (𝐵 ∖ 𝐴)) ↦ 𝐶))) |
16 | 1, 10 | mpteq2da 5168 | . . . . . 6 ⊢ (𝜑 → (𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶) = (𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 0)) |
17 | 16 | fveq2d 6760 | . . . . 5 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶)) = (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 0))) |
18 | 1, 6 | sge0z 43803 | . . . . 5 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 0)) = 0) |
19 | 17, 18 | eqtrd 2778 | . . . 4 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶)) = 0) |
20 | 19 | oveq2d 7271 | . . 3 ⊢ (𝜑 → ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶))) = ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 0)) |
21 | eqid 2738 | . . . . . 6 ⊢ (𝑘 ∈ 𝐴 ↦ 𝐶) = (𝑘 ∈ 𝐴 ↦ 𝐶) | |
22 | 1, 9, 21 | fmptdf 6973 | . . . . 5 ⊢ (𝜑 → (𝑘 ∈ 𝐴 ↦ 𝐶):𝐴⟶(0[,]+∞)) |
23 | 5, 22 | sge0xrcl 43813 | . . . 4 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) ∈ ℝ*) |
24 | xaddid1 12904 | . . . 4 ⊢ ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) ∈ ℝ* → ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 0) = (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶))) | |
25 | 23, 24 | syl 17 | . . 3 ⊢ (𝜑 → ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 0) = (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶))) |
26 | eqidd 2739 | . . 3 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) = (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶))) | |
27 | 20, 25, 26 | 3eqtrrd 2783 | . 2 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) = ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶)))) |
28 | undif 4412 | . . . . . 6 ⊢ (𝐴 ⊆ 𝐵 ↔ (𝐴 ∪ (𝐵 ∖ 𝐴)) = 𝐵) | |
29 | 2, 28 | sylib 217 | . . . . 5 ⊢ (𝜑 → (𝐴 ∪ (𝐵 ∖ 𝐴)) = 𝐵) |
30 | 29 | eqcomd 2744 | . . . 4 ⊢ (𝜑 → 𝐵 = (𝐴 ∪ (𝐵 ∖ 𝐴))) |
31 | 30 | mpteq1d 5165 | . . 3 ⊢ (𝜑 → (𝑘 ∈ 𝐵 ↦ 𝐶) = (𝑘 ∈ (𝐴 ∪ (𝐵 ∖ 𝐴)) ↦ 𝐶)) |
32 | 31 | fveq2d 6760 | . 2 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐵 ↦ 𝐶)) = (Σ^‘(𝑘 ∈ (𝐴 ∪ (𝐵 ∖ 𝐴)) ↦ 𝐶))) |
33 | 15, 27, 32 | 3eqtr4d 2788 | 1 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) = (Σ^‘(𝑘 ∈ 𝐵 ↦ 𝐶))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 Ⅎwnf 1787 ∈ wcel 2108 Vcvv 3422 ∖ cdif 3880 ∪ cun 3881 ∩ cin 3882 ⊆ wss 3883 ∅c0 4253 ↦ cmpt 5153 ‘cfv 6418 (class class class)co 7255 0cc0 10802 +∞cpnf 10937 ℝ*cxr 10939 +𝑒 cxad 12775 [,]cicc 13011 Σ^csumge0 43790 |
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-inf2 9329 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-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-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-sup 9131 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-n0 12164 df-z 12250 df-uz 12512 df-rp 12660 df-xadd 12778 df-ico 13014 df-icc 13015 df-fz 13169 df-fzo 13312 df-seq 13650 df-exp 13711 df-hash 13973 df-cj 14738 df-re 14739 df-im 14740 df-sqrt 14874 df-abs 14875 df-clim 15125 df-sum 15326 df-sumge0 43791 |
This theorem is referenced by: sge0fodjrnlem 43844 meadjiunlem 43893 ovnhoilem1 44029 ovnsubadd2lem 44073 |
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