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 4732 | . . . . 5 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ∈ 𝑉) → 𝐴 ∈ V) | |
5 | 2, 3, 4 | syl2anc 691 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ V) |
6 | difexg 4735 | . . . . 5 ⊢ (𝐵 ∈ 𝑉 → (𝐵 ∖ 𝐴) ∈ V) | |
7 | 3, 6 | syl 17 | . . . 4 ⊢ (𝜑 → (𝐵 ∖ 𝐴) ∈ V) |
8 | disjdif 3992 | . . . . 5 ⊢ (𝐴 ∩ (𝐵 ∖ 𝐴)) = ∅ | |
9 | 8 | a1i 11 | . . . 4 ⊢ (𝜑 → (𝐴 ∩ (𝐵 ∖ 𝐴)) = ∅) |
10 | sge0ss.c | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐶 ∈ (0[,]+∞)) | |
11 | sge0ss.c0 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝐵 ∖ 𝐴)) → 𝐶 = 0) | |
12 | 0e0iccpnf 12154 | . . . . . 6 ⊢ 0 ∈ (0[,]+∞) | |
13 | 12 | a1i 11 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝐵 ∖ 𝐴)) → 0 ∈ (0[,]+∞)) |
14 | 11, 13 | eqeltrd 2688 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝐵 ∖ 𝐴)) → 𝐶 ∈ (0[,]+∞)) |
15 | 1, 5, 7, 9, 10, 14 | sge0splitmpt 39304 | . . 3 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ (𝐴 ∪ (𝐵 ∖ 𝐴)) ↦ 𝐶)) = ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶)))) |
16 | 15 | eqcomd 2616 | . 2 ⊢ (𝜑 → ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶))) = (Σ^‘(𝑘 ∈ (𝐴 ∪ (𝐵 ∖ 𝐴)) ↦ 𝐶))) |
17 | 1, 11 | mpteq2da 4671 | . . . . . 6 ⊢ (𝜑 → (𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶) = (𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 0)) |
18 | 17 | fveq2d 6107 | . . . . 5 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶)) = (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 0))) |
19 | 1, 7 | sge0z 39268 | . . . . 5 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 0)) = 0) |
20 | 18, 19 | eqtrd 2644 | . . . 4 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶)) = 0) |
21 | 20 | oveq2d 6565 | . . 3 ⊢ (𝜑 → ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶))) = ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 0)) |
22 | eqid 2610 | . . . . . 6 ⊢ (𝑘 ∈ 𝐴 ↦ 𝐶) = (𝑘 ∈ 𝐴 ↦ 𝐶) | |
23 | 1, 10, 22 | fmptdf 6294 | . . . . 5 ⊢ (𝜑 → (𝑘 ∈ 𝐴 ↦ 𝐶):𝐴⟶(0[,]+∞)) |
24 | 5, 23 | sge0xrcl 39278 | . . . 4 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) ∈ ℝ*) |
25 | xaddid1 11946 | . . . 4 ⊢ ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) ∈ ℝ* → ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 0) = (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶))) | |
26 | 24, 25 | syl 17 | . . 3 ⊢ (𝜑 → ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 0) = (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶))) |
27 | eqidd 2611 | . . 3 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) = (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶))) | |
28 | 21, 26, 27 | 3eqtrrd 2649 | . 2 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) = ((Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) +𝑒 (Σ^‘(𝑘 ∈ (𝐵 ∖ 𝐴) ↦ 𝐶)))) |
29 | undif 4001 | . . . . . 6 ⊢ (𝐴 ⊆ 𝐵 ↔ (𝐴 ∪ (𝐵 ∖ 𝐴)) = 𝐵) | |
30 | 2, 29 | sylib 207 | . . . . 5 ⊢ (𝜑 → (𝐴 ∪ (𝐵 ∖ 𝐴)) = 𝐵) |
31 | 30 | eqcomd 2616 | . . . 4 ⊢ (𝜑 → 𝐵 = (𝐴 ∪ (𝐵 ∖ 𝐴))) |
32 | 31 | mpteq1d 4666 | . . 3 ⊢ (𝜑 → (𝑘 ∈ 𝐵 ↦ 𝐶) = (𝑘 ∈ (𝐴 ∪ (𝐵 ∖ 𝐴)) ↦ 𝐶)) |
33 | 32 | fveq2d 6107 | . 2 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐵 ↦ 𝐶)) = (Σ^‘(𝑘 ∈ (𝐴 ∪ (𝐵 ∖ 𝐴)) ↦ 𝐶))) |
34 | 16, 28, 33 | 3eqtr4d 2654 | 1 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐴 ↦ 𝐶)) = (Σ^‘(𝑘 ∈ 𝐵 ↦ 𝐶))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 383 = wceq 1475 Ⅎwnf 1699 ∈ wcel 1977 Vcvv 3173 ∖ cdif 3537 ∪ cun 3538 ∩ cin 3539 ⊆ wss 3540 ∅c0 3874 ↦ cmpt 4643 ‘cfv 5804 (class class class)co 6549 0cc0 9815 +∞cpnf 9950 ℝ*cxr 9952 +𝑒 cxad 11820 [,]cicc 12049 Σ^csumge0 39255 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-inf2 8421 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892 ax-pre-sup 9893 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-fal 1481 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rmo 2904 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-int 4411 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-se 4998 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-isom 5813 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-om 6958 df-1st 7059 df-2nd 7060 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-1o 7447 df-oadd 7451 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-fin 7845 df-sup 8231 df-oi 8298 df-card 8648 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-div 10564 df-nn 10898 df-2 10956 df-3 10957 df-n0 11170 df-z 11255 df-uz 11564 df-rp 11709 df-xadd 11823 df-ico 12052 df-icc 12053 df-fz 12198 df-fzo 12335 df-seq 12664 df-exp 12723 df-hash 12980 df-cj 13687 df-re 13688 df-im 13689 df-sqrt 13823 df-abs 13824 df-clim 14067 df-sum 14265 df-sumge0 39256 |
This theorem is referenced by: sge0fodjrnlem 39309 meadjiunlem 39358 ovnhoilem1 39491 ovnsubadd2lem 39535 |
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