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Mirrors > Home > ILE Home > Th. List > sumeq1i | GIF version |
Description: Equality inference for sum. (Contributed by NM, 2-Jan-2006.) |
Ref | Expression |
---|---|
sumeq1i.1 | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
sumeq1i | ⊢ Σ𝑘 ∈ 𝐴 𝐶 = Σ𝑘 ∈ 𝐵 𝐶 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sumeq1i.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | sumeq1 10807 | . 2 ⊢ (𝐴 = 𝐵 → Σ𝑘 ∈ 𝐴 𝐶 = Σ𝑘 ∈ 𝐵 𝐶) | |
3 | 1, 2 | ax-mp 7 | 1 ⊢ Σ𝑘 ∈ 𝐴 𝐶 = Σ𝑘 ∈ 𝐵 𝐶 |
Colors of variables: wff set class |
Syntax hints: = wceq 1290 Σcsu 10805 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 580 ax-in2 581 ax-io 666 ax-5 1382 ax-7 1383 ax-gen 1384 ax-ie1 1428 ax-ie2 1429 ax-8 1441 ax-10 1442 ax-11 1443 ax-i12 1444 ax-bndl 1445 ax-4 1446 ax-17 1465 ax-i9 1469 ax-ial 1473 ax-i5r 1474 ax-ext 2071 |
This theorem depends on definitions: df-bi 116 df-dc 782 df-3an 927 df-tru 1293 df-nf 1396 df-sb 1694 df-clab 2076 df-cleq 2082 df-clel 2085 df-nfc 2218 df-ral 2365 df-rex 2366 df-v 2624 df-un 3006 df-in 3008 df-ss 3015 df-if 3400 df-sn 3458 df-pr 3459 df-op 3461 df-uni 3662 df-br 3854 df-opab 3908 df-mpt 3909 df-cnv 4462 df-dm 4464 df-rn 4465 df-res 4466 df-iota 4995 df-f 5034 df-f1 5035 df-fo 5036 df-f1o 5037 df-fv 5038 df-ov 5671 df-oprab 5672 df-mpt2 5673 df-recs 6086 df-frec 6172 df-iseq 9916 df-isum 10806 |
This theorem is referenced by: sumeq12i 10817 fsump1i 10890 fsum2d 10892 fsumxp 10893 isumnn0nn 10950 arisum 10955 arisum2 10956 geo2sum 10971 efsep 11044 ef4p 11047 |
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