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| Mirrors > Home > ILE Home > Th. List > iedgvalg | GIF version | ||
| Description: The set of indexed edges of a graph. (Contributed by AV, 21-Sep-2020.) |
| Ref | Expression |
|---|---|
| iedgvalg | ⊢ (𝐺 ∈ 𝑉 → (iEdg‘𝐺) = if(𝐺 ∈ (V × V), (2nd ‘𝐺), (.ef‘𝐺))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-iedg 15831 | . 2 ⊢ iEdg = (𝑔 ∈ V ↦ if(𝑔 ∈ (V × V), (2nd ‘𝑔), (.ef‘𝑔))) | |
| 2 | eleq1 2292 | . . 3 ⊢ (𝑔 = 𝐺 → (𝑔 ∈ (V × V) ↔ 𝐺 ∈ (V × V))) | |
| 3 | fveq2 5629 | . . 3 ⊢ (𝑔 = 𝐺 → (2nd ‘𝑔) = (2nd ‘𝐺)) | |
| 4 | fveq2 5629 | . . 3 ⊢ (𝑔 = 𝐺 → (.ef‘𝑔) = (.ef‘𝐺)) | |
| 5 | 2, 3, 4 | ifbieq12d 3629 | . 2 ⊢ (𝑔 = 𝐺 → if(𝑔 ∈ (V × V), (2nd ‘𝑔), (.ef‘𝑔)) = if(𝐺 ∈ (V × V), (2nd ‘𝐺), (.ef‘𝐺))) |
| 6 | elex 2811 | . 2 ⊢ (𝐺 ∈ 𝑉 → 𝐺 ∈ V) | |
| 7 | 2ndexg 6320 | . . 3 ⊢ (𝐺 ∈ 𝑉 → (2nd ‘𝐺) ∈ V) | |
| 8 | edgfid 15822 | . . . . 5 ⊢ .ef = Slot (.ef‘ndx) | |
| 9 | edgfndxnn 15824 | . . . . 5 ⊢ (.ef‘ndx) ∈ ℕ | |
| 10 | 8, 9 | ndxslid 13072 | . . . 4 ⊢ (.ef = Slot (.ef‘ndx) ∧ (.ef‘ndx) ∈ ℕ) |
| 11 | 10 | slotex 13074 | . . 3 ⊢ (𝐺 ∈ 𝑉 → (.ef‘𝐺) ∈ V) |
| 12 | 7, 11 | ifexd 4575 | . 2 ⊢ (𝐺 ∈ 𝑉 → if(𝐺 ∈ (V × V), (2nd ‘𝐺), (.ef‘𝐺)) ∈ V) |
| 13 | 1, 5, 6, 12 | fvmptd3 5730 | 1 ⊢ (𝐺 ∈ 𝑉 → (iEdg‘𝐺) = if(𝐺 ∈ (V × V), (2nd ‘𝐺), (.ef‘𝐺))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1395 ∈ wcel 2200 Vcvv 2799 ifcif 3602 × cxp 4717 ‘cfv 5318 2nd c2nd 6291 ndxcnx 13044 .efcedgf 15820 iEdgciedg 15829 |
| 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-in1 617 ax-in2 618 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-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4258 ax-pr 4293 ax-un 4524 ax-setind 4629 ax-cnex 8101 ax-resscn 8102 ax-1cn 8103 ax-1re 8104 ax-icn 8105 ax-addcl 8106 ax-addrcl 8107 ax-mulcl 8108 ax-addcom 8110 ax-mulcom 8111 ax-addass 8112 ax-mulass 8113 ax-distr 8114 ax-i2m1 8115 ax-1rid 8117 ax-0id 8118 ax-rnegex 8119 ax-cnre 8121 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-ral 2513 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2801 df-sbc 3029 df-csb 3125 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-if 3603 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-int 3924 df-br 4084 df-opab 4146 df-mpt 4147 df-id 4384 df-xp 4725 df-rel 4726 df-cnv 4727 df-co 4728 df-dm 4729 df-rn 4730 df-res 4731 df-iota 5278 df-fun 5320 df-fn 5321 df-f 5322 df-fo 5324 df-fv 5326 df-riota 5960 df-ov 6010 df-oprab 6011 df-mpo 6012 df-2nd 6293 df-sub 8330 df-inn 9122 df-2 9180 df-3 9181 df-4 9182 df-5 9183 df-6 9184 df-7 9185 df-8 9186 df-9 9187 df-n0 9381 df-dec 9590 df-ndx 13050 df-slot 13051 df-edgf 15821 df-iedg 15831 |
| This theorem is referenced by: iedgex 15835 opiedgval 15840 funiedgdm2domval 15846 funiedgdm2vald 15848 iedgval0 15870 edgvalg 15875 |
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