Mathbox for Glauco Siliprandi |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > sge0z | Structured version Visualization version GIF version |
Description: Any nonnegative extended sum of zero is zero. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
Ref | Expression |
---|---|
sge0z.1 | ⊢ Ⅎ𝑘𝜑 |
sge0z.2 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
Ref | Expression |
---|---|
sge0z | ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐴 ↦ 0)) = 0) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sge0z.2 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
2 | sge0z.1 | . . . 4 ⊢ Ⅎ𝑘𝜑 | |
3 | 0e0icopnf 13172 | . . . . 5 ⊢ 0 ∈ (0[,)+∞) | |
4 | 3 | a1i 11 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 0 ∈ (0[,)+∞)) |
5 | 2, 4 | fmptd2f 42731 | . . 3 ⊢ (𝜑 → (𝑘 ∈ 𝐴 ↦ 0):𝐴⟶(0[,)+∞)) |
6 | 1, 5 | sge0reval 43864 | . 2 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐴 ↦ 0)) = sup(ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ Σ𝑦 ∈ 𝑥 ((𝑘 ∈ 𝐴 ↦ 0)‘𝑦)), ℝ*, < )) |
7 | eqidd 2740 | . . . . . . . . . 10 ⊢ ((𝑥 ∈ (𝒫 𝐴 ∩ Fin) ∧ 𝑦 ∈ 𝑥) → (𝑘 ∈ 𝐴 ↦ 0) = (𝑘 ∈ 𝐴 ↦ 0)) | |
8 | eqidd 2740 | . . . . . . . . . 10 ⊢ (((𝑥 ∈ (𝒫 𝐴 ∩ Fin) ∧ 𝑦 ∈ 𝑥) ∧ 𝑘 = 𝑦) → 0 = 0) | |
9 | elpwinss 42550 | . . . . . . . . . . 11 ⊢ (𝑥 ∈ (𝒫 𝐴 ∩ Fin) → 𝑥 ⊆ 𝐴) | |
10 | 9 | sselda 3925 | . . . . . . . . . 10 ⊢ ((𝑥 ∈ (𝒫 𝐴 ∩ Fin) ∧ 𝑦 ∈ 𝑥) → 𝑦 ∈ 𝐴) |
11 | 0cnd 10952 | . . . . . . . . . 10 ⊢ ((𝑥 ∈ (𝒫 𝐴 ∩ Fin) ∧ 𝑦 ∈ 𝑥) → 0 ∈ ℂ) | |
12 | 7, 8, 10, 11 | fvmptd 6876 | . . . . . . . . 9 ⊢ ((𝑥 ∈ (𝒫 𝐴 ∩ Fin) ∧ 𝑦 ∈ 𝑥) → ((𝑘 ∈ 𝐴 ↦ 0)‘𝑦) = 0) |
13 | 12 | adantll 710 | . . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ (𝒫 𝐴 ∩ Fin)) ∧ 𝑦 ∈ 𝑥) → ((𝑘 ∈ 𝐴 ↦ 0)‘𝑦) = 0) |
14 | 13 | sumeq2dv 15396 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝒫 𝐴 ∩ Fin)) → Σ𝑦 ∈ 𝑥 ((𝑘 ∈ 𝐴 ↦ 0)‘𝑦) = Σ𝑦 ∈ 𝑥 0) |
15 | elinel2 4134 | . . . . . . . . 9 ⊢ (𝑥 ∈ (𝒫 𝐴 ∩ Fin) → 𝑥 ∈ Fin) | |
16 | olc 864 | . . . . . . . . 9 ⊢ (𝑥 ∈ Fin → (𝑥 ⊆ (ℤ≥‘𝐵) ∨ 𝑥 ∈ Fin)) | |
17 | sumz 15415 | . . . . . . . . 9 ⊢ ((𝑥 ⊆ (ℤ≥‘𝐵) ∨ 𝑥 ∈ Fin) → Σ𝑦 ∈ 𝑥 0 = 0) | |
18 | 15, 16, 17 | 3syl 18 | . . . . . . . 8 ⊢ (𝑥 ∈ (𝒫 𝐴 ∩ Fin) → Σ𝑦 ∈ 𝑥 0 = 0) |
19 | 18 | adantl 481 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝒫 𝐴 ∩ Fin)) → Σ𝑦 ∈ 𝑥 0 = 0) |
20 | 14, 19 | eqtrd 2779 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝒫 𝐴 ∩ Fin)) → Σ𝑦 ∈ 𝑥 ((𝑘 ∈ 𝐴 ↦ 0)‘𝑦) = 0) |
21 | 20 | mpteq2dva 5178 | . . . . 5 ⊢ (𝜑 → (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ Σ𝑦 ∈ 𝑥 ((𝑘 ∈ 𝐴 ↦ 0)‘𝑦)) = (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 0)) |
22 | 21 | rneqd 5844 | . . . 4 ⊢ (𝜑 → ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ Σ𝑦 ∈ 𝑥 ((𝑘 ∈ 𝐴 ↦ 0)‘𝑦)) = ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 0)) |
23 | eqid 2739 | . . . . 5 ⊢ (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 0) = (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 0) | |
24 | pwfin0 42563 | . . . . . 6 ⊢ (𝒫 𝐴 ∩ Fin) ≠ ∅ | |
25 | 24 | a1i 11 | . . . . 5 ⊢ (𝜑 → (𝒫 𝐴 ∩ Fin) ≠ ∅) |
26 | 23, 25 | rnmptc 7076 | . . . 4 ⊢ (𝜑 → ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ 0) = {0}) |
27 | 22, 26 | eqtrd 2779 | . . 3 ⊢ (𝜑 → ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ Σ𝑦 ∈ 𝑥 ((𝑘 ∈ 𝐴 ↦ 0)‘𝑦)) = {0}) |
28 | 27 | supeq1d 9166 | . 2 ⊢ (𝜑 → sup(ran (𝑥 ∈ (𝒫 𝐴 ∩ Fin) ↦ Σ𝑦 ∈ 𝑥 ((𝑘 ∈ 𝐴 ↦ 0)‘𝑦)), ℝ*, < ) = sup({0}, ℝ*, < )) |
29 | xrltso 12857 | . . . 4 ⊢ < Or ℝ* | |
30 | 29 | a1i 11 | . . 3 ⊢ (𝜑 → < Or ℝ*) |
31 | 0xr 11006 | . . 3 ⊢ 0 ∈ ℝ* | |
32 | supsn 9192 | . . 3 ⊢ (( < Or ℝ* ∧ 0 ∈ ℝ*) → sup({0}, ℝ*, < ) = 0) | |
33 | 30, 31, 32 | sylancl 585 | . 2 ⊢ (𝜑 → sup({0}, ℝ*, < ) = 0) |
34 | 6, 28, 33 | 3eqtrd 2783 | 1 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ 𝐴 ↦ 0)) = 0) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 ∨ wo 843 = wceq 1541 Ⅎwnf 1789 ∈ wcel 2109 ≠ wne 2944 ∩ cin 3890 ⊆ wss 3891 ∅c0 4261 𝒫 cpw 4538 {csn 4566 ↦ cmpt 5161 Or wor 5501 ran crn 5589 ‘cfv 6430 (class class class)co 7268 Fincfn 8707 supcsup 9160 ℂcc 10853 0cc0 10855 +∞cpnf 10990 ℝ*cxr 10992 < clt 10993 ℤ≥cuz 12564 [,)cico 13063 Σcsu 15378 Σ^csumge0 43854 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-rep 5213 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 ax-inf2 9360 ax-cnex 10911 ax-resscn 10912 ax-1cn 10913 ax-icn 10914 ax-addcl 10915 ax-addrcl 10916 ax-mulcl 10917 ax-mulrcl 10918 ax-mulcom 10919 ax-addass 10920 ax-mulass 10921 ax-distr 10922 ax-i2m1 10923 ax-1ne0 10924 ax-1rid 10925 ax-rnegex 10926 ax-rrecex 10927 ax-cnre 10928 ax-pre-lttri 10929 ax-pre-lttrn 10930 ax-pre-ltadd 10931 ax-pre-mulgt0 10932 ax-pre-sup 10933 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-nel 3051 df-ral 3070 df-rex 3071 df-reu 3072 df-rmo 3073 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-pss 3910 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-tp 4571 df-op 4573 df-uni 4845 df-int 4885 df-iun 4931 df-br 5079 df-opab 5141 df-mpt 5162 df-tr 5196 df-id 5488 df-eprel 5494 df-po 5502 df-so 5503 df-fr 5543 df-se 5544 df-we 5545 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-pred 6199 df-ord 6266 df-on 6267 df-lim 6268 df-suc 6269 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-isom 6439 df-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-om 7701 df-1st 7817 df-2nd 7818 df-frecs 8081 df-wrecs 8112 df-recs 8186 df-rdg 8225 df-1o 8281 df-er 8472 df-en 8708 df-dom 8709 df-sdom 8710 df-fin 8711 df-sup 9162 df-oi 9230 df-card 9681 df-pnf 10995 df-mnf 10996 df-xr 10997 df-ltxr 10998 df-le 10999 df-sub 11190 df-neg 11191 df-div 11616 df-nn 11957 df-2 12019 df-3 12020 df-n0 12217 df-z 12303 df-uz 12565 df-rp 12713 df-ico 13067 df-icc 13068 df-fz 13222 df-fzo 13365 df-seq 13703 df-exp 13764 df-hash 14026 df-cj 14791 df-re 14792 df-im 14793 df-sqrt 14927 df-abs 14928 df-clim 15178 df-sum 15379 df-sumge0 43855 |
This theorem is referenced by: sge0ss 43904 ismeannd 43959 0ome 44021 isomenndlem 44022 ovn0lem 44057 vonct 44185 |
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