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Mirrors > Home > MPE Home > Th. List > sumex | Structured version Visualization version GIF version |
Description: A sum is a set. (Contributed by NM, 11-Dec-2005.) (Revised by Mario Carneiro, 13-Jun-2019.) |
Ref | Expression |
---|---|
sumex | ⊢ Σ𝑘 ∈ 𝐴 𝐵 ∈ V |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-sum 15043 | . 2 ⊢ Σ𝑘 ∈ 𝐴 𝐵 = (℩𝑥(∃𝑚 ∈ ℤ (𝐴 ⊆ (ℤ≥‘𝑚) ∧ seq𝑚( + , (𝑛 ∈ ℤ ↦ if(𝑛 ∈ 𝐴, ⦋𝑛 / 𝑘⦌𝐵, 0))) ⇝ 𝑥) ∨ ∃𝑚 ∈ ℕ ∃𝑓(𝑓:(1...𝑚)–1-1-onto→𝐴 ∧ 𝑥 = (seq1( + , (𝑛 ∈ ℕ ↦ ⦋(𝑓‘𝑛) / 𝑘⦌𝐵))‘𝑚)))) | |
2 | iotaex 6335 | . 2 ⊢ (℩𝑥(∃𝑚 ∈ ℤ (𝐴 ⊆ (ℤ≥‘𝑚) ∧ seq𝑚( + , (𝑛 ∈ ℤ ↦ if(𝑛 ∈ 𝐴, ⦋𝑛 / 𝑘⦌𝐵, 0))) ⇝ 𝑥) ∨ ∃𝑚 ∈ ℕ ∃𝑓(𝑓:(1...𝑚)–1-1-onto→𝐴 ∧ 𝑥 = (seq1( + , (𝑛 ∈ ℕ ↦ ⦋(𝑓‘𝑛) / 𝑘⦌𝐵))‘𝑚)))) ∈ V | |
3 | 1, 2 | eqeltri 2909 | 1 ⊢ Σ𝑘 ∈ 𝐴 𝐵 ∈ V |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 398 ∨ wo 843 = wceq 1537 ∃wex 1780 ∈ wcel 2114 ∃wrex 3139 Vcvv 3494 ⦋csb 3883 ⊆ wss 3936 ifcif 4467 class class class wbr 5066 ↦ cmpt 5146 ℩cio 6312 –1-1-onto→wf1o 6354 ‘cfv 6355 (class class class)co 7156 0cc0 10537 1c1 10538 + caddc 10540 ℕcn 11638 ℤcz 11982 ℤ≥cuz 12244 ...cfz 12893 seqcseq 13370 ⇝ cli 14841 Σcsu 15042 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-nul 5210 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-v 3496 df-sbc 3773 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-sn 4568 df-pr 4570 df-uni 4839 df-iota 6314 df-sum 15043 |
This theorem is referenced by: fsumrlim 15166 fsumo1 15167 efval 15433 efcvgfsum 15439 eftlub 15462 bitsinv2 15792 bitsinv 15797 lebnumlem3 23567 isi1f 24275 itg1val 24284 itg1climres 24315 itgex 24371 itgfsum 24427 dvmptfsum 24572 plyeq0lem 24800 plyaddlem1 24803 plymullem1 24804 coeeulem 24814 coeid2 24829 plyco 24831 coemullem 24840 coemul 24842 aareccl 24915 aaliou3lem5 24936 aaliou3lem6 24937 aaliou3lem7 24938 taylpval 24955 psercn 25014 pserdvlem2 25016 pserdv 25017 abelthlem6 25024 abelthlem8 25027 abelthlem9 25028 logtayl 25243 leibpi 25520 basellem3 25660 chtval 25687 chpval 25699 sgmval 25719 muinv 25770 dchrvmasumlem1 26071 dchrisum0fval 26081 dchrisum0fno1 26087 dchrisum0lem3 26095 dchrisum0 26096 mulogsum 26108 logsqvma2 26119 selberglem1 26121 pntsval 26148 ecgrtg 26769 esumpcvgval 31337 esumcvg 31345 eulerpartlemsv1 31614 signsplypnf 31820 signsvvfval 31848 vtsval 31908 circlemeth 31911 fwddifnval 33624 knoppndvlem6 33856 binomcxplemnotnn0 40708 stoweidlem11 42316 stoweidlem26 42331 fourierdlem112 42523 fsumlesge0 42679 sge0sn 42681 sge0f1o 42684 sge0supre 42691 sge0resplit 42708 sge0reuz 42749 sge0reuzb 42750 aacllem 44922 |
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