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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 2374 | . 2 ⊢ Ⅎ𝑘𝐴 | |
| 3 | nfcv 2374 | . 2 ⊢ Ⅎ𝑗𝐴 | |
| 4 | nfcv 2374 | . 2 ⊢ Ⅎ𝑘𝐵 | |
| 5 | nfcv 2374 | . 2 ⊢ Ⅎ𝑗𝐶 | |
| 6 | 1, 2, 3, 4, 5 | cbvsum 11925 | 1 ⊢ Σ𝑗 ∈ 𝐴 𝐵 = Σ𝑘 ∈ 𝐴 𝐶 |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1397 Σcsu 11918 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-sbc 3032 df-csb 3128 df-un 3204 df-in 3206 df-ss 3213 df-if 3606 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-mpt 4152 df-cnv 4733 df-dm 4735 df-rn 4736 df-res 4737 df-iota 5286 df-fv 5334 df-ov 6021 df-oprab 6022 df-mpo 6023 df-recs 6471 df-frec 6557 df-seqfrec 10711 df-sumdc 11919 |
| This theorem is referenced by: isumge0 11996 telfsumo 12032 fsumparts 12036 binomlem 12049 mertenslemi1 12101 mertenslem2 12102 mertensabs 12103 efaddlem 12240 plymullem1 15478 plyadd 15481 plymul 15482 plycoeid3 15487 plyco 15489 plycj 15491 dvply1 15495 trilpo 16673 redcwlpo 16686 nconstwlpo 16697 neapmkv 16699 |
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