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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 2386 | . 2 ⊢ Ⅎ𝑘𝐴 | |
| 3 | nfcv 2386 | . 2 ⊢ Ⅎ𝑗𝐴 | |
| 4 | nfcv 2386 | . 2 ⊢ Ⅎ𝑘𝐵 | |
| 5 | nfcv 2386 | . 2 ⊢ Ⅎ𝑗𝐶 | |
| 6 | 1, 2, 3, 4, 5 | cbvsum 12070 | 1 ⊢ Σ𝑗 ∈ 𝐴 𝐵 = Σ𝑘 ∈ 𝐴 𝐶 |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 Σcsu 12063 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-sbc 3046 df-csb 3142 df-un 3218 df-in 3220 df-ss 3227 df-if 3625 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-br 4115 df-opab 4177 df-mpt 4178 df-cnv 4762 df-dm 4764 df-rn 4765 df-res 4766 df-iota 5317 df-fv 5365 df-ov 6061 df-oprab 6062 df-mpo 6063 df-recs 6549 df-frec 6635 df-seqfrec 10834 df-sumdc 12064 |
| This theorem is referenced by: isumge0 12141 telfsumo 12177 fsumparts 12181 binomlem 12194 mertenslemi1 12246 mertenslem2 12247 mertensabs 12248 efaddlem 12385 plymullem1 15739 plyadd 15742 plymul 15743 plycoeid3 15748 plyco 15750 plycj 15752 dvply1 15756 trilpo 16953 redcwlpo 16966 nconstwlpo 16978 neapmkv 16980 |
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