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| Mirrors > Home > MPE Home > Th. List > Mathboxes > esumrnmpt | Structured version Visualization version GIF version | ||
| Description: Rewrite an extended sum into a sum on the range of a mapping function. (Contributed by Thierry Arnoux, 27-May-2020.) |
| Ref | Expression |
|---|---|
| esumrnmpt.0 | ⊢ Ⅎ𝑘𝐴 |
| esumrnmpt.1 | ⊢ (𝑦 = 𝐵 → 𝐶 = 𝐷) |
| esumrnmpt.2 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| esumrnmpt.3 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐷 ∈ (0[,]+∞)) |
| esumrnmpt.4 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ (𝑊 ∖ {∅})) |
| esumrnmpt.5 | ⊢ (𝜑 → Disj 𝑘 ∈ 𝐴 𝐵) |
| Ref | Expression |
|---|---|
| esumrnmpt | ⊢ (𝜑 → Σ*𝑦 ∈ ran (𝑘 ∈ 𝐴 ↦ 𝐵)𝐶 = Σ*𝑘 ∈ 𝐴𝐷) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2730 | . . . 4 ⊢ (𝑘 ∈ 𝐴 ↦ 𝐵) = (𝑘 ∈ 𝐴 ↦ 𝐵) | |
| 2 | 1 | rnmpt 5929 | . . 3 ⊢ ran (𝑘 ∈ 𝐴 ↦ 𝐵) = {𝑧 ∣ ∃𝑘 ∈ 𝐴 𝑧 = 𝐵} |
| 3 | esumeq1 34032 | . . 3 ⊢ (ran (𝑘 ∈ 𝐴 ↦ 𝐵) = {𝑧 ∣ ∃𝑘 ∈ 𝐴 𝑧 = 𝐵} → Σ*𝑦 ∈ ran (𝑘 ∈ 𝐴 ↦ 𝐵)𝐶 = Σ*𝑦 ∈ {𝑧 ∣ ∃𝑘 ∈ 𝐴 𝑧 = 𝐵}𝐶) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ Σ*𝑦 ∈ ran (𝑘 ∈ 𝐴 ↦ 𝐵)𝐶 = Σ*𝑦 ∈ {𝑧 ∣ ∃𝑘 ∈ 𝐴 𝑧 = 𝐵}𝐶 |
| 5 | nfcv 2893 | . . 3 ⊢ Ⅎ𝑘𝐶 | |
| 6 | nfv 1914 | . . 3 ⊢ Ⅎ𝑘𝜑 | |
| 7 | esumrnmpt.0 | . . 3 ⊢ Ⅎ𝑘𝐴 | |
| 8 | esumrnmpt.1 | . . 3 ⊢ (𝑦 = 𝐵 → 𝐶 = 𝐷) | |
| 9 | esumrnmpt.2 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 10 | esumrnmpt.4 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ (𝑊 ∖ {∅})) | |
| 11 | esumrnmpt.5 | . . . 4 ⊢ (𝜑 → Disj 𝑘 ∈ 𝐴 𝐵) | |
| 12 | 6, 7, 10, 11 | disjdsct 32634 | . . 3 ⊢ (𝜑 → Fun ◡(𝑘 ∈ 𝐴 ↦ 𝐵)) |
| 13 | esumrnmpt.3 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐷 ∈ (0[,]+∞)) | |
| 14 | 5, 6, 7, 8, 9, 12, 13, 10 | esumc 34049 | . 2 ⊢ (𝜑 → Σ*𝑘 ∈ 𝐴𝐷 = Σ*𝑦 ∈ {𝑧 ∣ ∃𝑘 ∈ 𝐴 𝑧 = 𝐵}𝐶) |
| 15 | 4, 14 | eqtr4id 2784 | 1 ⊢ (𝜑 → Σ*𝑦 ∈ ran (𝑘 ∈ 𝐴 ↦ 𝐵)𝐶 = Σ*𝑘 ∈ 𝐴𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1540 ∈ wcel 2109 {cab 2708 Ⅎwnfc 2878 ∃wrex 3055 ∖ cdif 3919 ∅c0 4304 {csn 4597 Disj wdisj 5082 ↦ cmpt 5196 ran crn 5647 (class class class)co 7394 0cc0 11086 +∞cpnf 11223 [,]cicc 13322 Σ*cesum 34025 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-rep 5242 ax-sep 5259 ax-nul 5269 ax-pow 5328 ax-pr 5395 ax-un 7718 ax-cnex 11142 ax-resscn 11143 ax-1cn 11144 ax-icn 11145 ax-addcl 11146 ax-addrcl 11147 ax-mulcl 11148 ax-mulrcl 11149 ax-mulcom 11150 ax-addass 11151 ax-mulass 11152 ax-distr 11153 ax-i2m1 11154 ax-1ne0 11155 ax-1rid 11156 ax-rnegex 11157 ax-rrecex 11158 ax-cnre 11159 ax-pre-lttri 11160 ax-pre-lttrn 11161 ax-pre-ltadd 11162 ax-pre-mulgt0 11163 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2880 df-ne 2928 df-nel 3032 df-ral 3047 df-rex 3056 df-rmo 3357 df-reu 3358 df-rab 3412 df-v 3457 df-sbc 3762 df-csb 3871 df-dif 3925 df-un 3927 df-in 3929 df-ss 3939 df-pss 3942 df-nul 4305 df-if 4497 df-pw 4573 df-sn 4598 df-pr 4600 df-tp 4602 df-op 4604 df-uni 4880 df-int 4919 df-iun 4965 df-disj 5083 df-br 5116 df-opab 5178 df-mpt 5197 df-tr 5223 df-id 5541 df-eprel 5546 df-po 5554 df-so 5555 df-fr 5599 df-se 5600 df-we 5601 df-xp 5652 df-rel 5653 df-cnv 5654 df-co 5655 df-dm 5656 df-rn 5657 df-res 5658 df-ima 5659 df-pred 6282 df-ord 6343 df-on 6344 df-lim 6345 df-suc 6346 df-iota 6472 df-fun 6521 df-fn 6522 df-f 6523 df-f1 6524 df-fo 6525 df-f1o 6526 df-fv 6527 df-isom 6528 df-riota 7351 df-ov 7397 df-oprab 7398 df-mpo 7399 df-om 7851 df-1st 7977 df-2nd 7978 df-supp 8149 df-frecs 8269 df-wrecs 8300 df-recs 8349 df-rdg 8387 df-1o 8443 df-2o 8444 df-er 8682 df-map 8805 df-en 8923 df-dom 8924 df-sdom 8925 df-fin 8926 df-fsupp 9331 df-fi 9380 df-oi 9481 df-card 9910 df-pnf 11228 df-mnf 11229 df-xr 11230 df-ltxr 11231 df-le 11232 df-sub 11425 df-neg 11426 df-nn 12198 df-2 12260 df-3 12261 df-4 12262 df-5 12263 df-6 12264 df-7 12265 df-8 12266 df-9 12267 df-n0 12459 df-z 12546 df-dec 12666 df-uz 12810 df-xadd 13086 df-icc 13326 df-fz 13482 df-fzo 13629 df-seq 13977 df-hash 14306 df-struct 17123 df-sets 17140 df-slot 17158 df-ndx 17170 df-base 17186 df-ress 17207 df-plusg 17239 df-mulr 17240 df-tset 17245 df-ple 17246 df-ds 17248 df-rest 17391 df-topn 17392 df-0g 17410 df-gsum 17411 df-topgen 17412 df-ordt 17470 df-xrs 17471 df-ps 18531 df-tsr 18532 df-mgm 18573 df-sgrp 18652 df-mnd 18668 df-submnd 18717 df-cntz 19255 df-cmn 19718 df-fbas 21267 df-fg 21268 df-top 22787 df-topon 22804 df-topsp 22826 df-bases 22839 df-ntr 22913 df-nei 22991 df-fil 23739 df-fm 23831 df-flim 23832 df-flf 23833 df-tsms 24020 df-esum 34026 |
| This theorem is referenced by: esumrnmpt2 34066 |
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