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| Mirrors > Home > ILE Home > Th. List > cbvsumv | GIF version | ||
| Description: Change bound variable in a sum. (Contributed by NM, 11-Dec-2005.) (Revised by Mario Carneiro, 13-Jul-2013.) |
| Ref | Expression |
|---|---|
| cbvsum.1 | ⊢ (𝑗 = 𝑘 → 𝐵 = 𝐶) |
| Ref | Expression |
|---|---|
| cbvsumv | ⊢ Σ𝑗 ∈ 𝐴 𝐵 = Σ𝑘 ∈ 𝐴 𝐶 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cbvsum.1 | . 2 ⊢ (𝑗 = 𝑘 → 𝐵 = 𝐶) | |
| 2 | nfcv 2372 | . 2 ⊢ Ⅎ𝑘𝐴 | |
| 3 | nfcv 2372 | . 2 ⊢ Ⅎ𝑗𝐴 | |
| 4 | nfcv 2372 | . 2 ⊢ Ⅎ𝑘𝐵 | |
| 5 | nfcv 2372 | . 2 ⊢ Ⅎ𝑗𝐶 | |
| 6 | 1, 2, 3, 4, 5 | cbvsum 11911 | 1 ⊢ Σ𝑗 ∈ 𝐴 𝐵 = Σ𝑘 ∈ 𝐴 𝐶 |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1395 Σcsu 11904 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2802 df-sbc 3030 df-csb 3126 df-un 3202 df-in 3204 df-ss 3211 df-if 3604 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-br 4087 df-opab 4149 df-mpt 4150 df-cnv 4731 df-dm 4733 df-rn 4734 df-res 4735 df-iota 5284 df-fv 5332 df-ov 6016 df-oprab 6017 df-mpo 6018 df-recs 6466 df-frec 6552 df-seqfrec 10700 df-sumdc 11905 |
| This theorem is referenced by: isumge0 11981 telfsumo 12017 fsumparts 12021 binomlem 12034 mertenslemi1 12086 mertenslem2 12087 mertensabs 12088 efaddlem 12225 plymullem1 15462 plyadd 15465 plymul 15466 plycoeid3 15471 plyco 15473 plycj 15475 dvply1 15479 trilpo 16583 redcwlpo 16595 nconstwlpo 16606 neapmkv 16608 |
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