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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 11922 | 1 ⊢ Σ𝑗 ∈ 𝐴 𝐵 = Σ𝑘 ∈ 𝐴 𝐶 |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1397 Σcsu 11915 |
| 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 11916 |
| This theorem is referenced by: isumge0 11993 telfsumo 12029 fsumparts 12033 binomlem 12046 mertenslemi1 12098 mertenslem2 12099 mertensabs 12100 efaddlem 12237 plymullem1 15475 plyadd 15478 plymul 15479 plycoeid3 15484 plyco 15486 plycj 15488 dvply1 15492 trilpo 16668 redcwlpo 16680 nconstwlpo 16691 neapmkv 16693 |
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