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| Mirrors > Home > ILE Home > Th. List > usgredg2v | Unicode version | ||
| Description: In a simple graph, the mapping of edges having a fixed endpoint to the other vertex of the edge is a one-to-one function into the set of vertices. (Contributed by Alexander van der Vekens, 4-Jan-2018.) (Revised by AV, 18-Oct-2020.) |
| Ref | Expression |
|---|---|
| usgredg2v.v |
|
| usgredg2v.e |
|
| usgredg2v.a |
|
| usgredg2v.f |
|
| Ref | Expression |
|---|---|
| usgredg2v |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | usgredg2v.v |
. . . . 5
| |
| 2 | usgredg2v.e |
. . . . 5
| |
| 3 | usgredg2v.a |
. . . . 5
| |
| 4 | 1, 2, 3 | usgredg2vlem1 16102 |
. . . 4
|
| 5 | 4 | ralrimiva 2604 |
. . 3
|
| 6 | 5 | adantr 276 |
. 2
|
| 7 | simpr 110 |
. . . . . . . 8
| |
| 8 | preq1 3749 |
. . . . . . . . . 10
| |
| 9 | 8 | eqeq2d 2242 |
. . . . . . . . 9
|
| 10 | 9 | cbvriotavw 5987 |
. . . . . . . 8
|
| 11 | 8 | eqeq2d 2242 |
. . . . . . . . 9
|
| 12 | 11 | cbvriotavw 5987 |
. . . . . . . 8
|
| 13 | 7, 10, 12 | 3eqtr4g 2288 |
. . . . . . 7
|
| 14 | eqid 2230 |
. . . . . . 7
| |
| 15 | 13, 14 | jctir 313 |
. . . . . 6
|
| 16 | 15 | orcd 740 |
. . . . 5
|
| 17 | simpl 109 |
. . . . . . . . . 10
| |
| 18 | simpl 109 |
. . . . . . . . . 10
| |
| 19 | 17, 18 | anim12i 338 |
. . . . . . . . 9
|
| 20 | 1, 2, 3 | usgredg2vlem2 16103 |
. . . . . . . . 9
|
| 21 | 19, 10, 20 | mpisyl 1491 |
. . . . . . . 8
|
| 22 | an3 591 |
. . . . . . . . 9
| |
| 23 | 1, 2, 3 | usgredg2vlem2 16103 |
. . . . . . . . 9
|
| 24 | 22, 12, 23 | mpisyl 1491 |
. . . . . . . 8
|
| 25 | 21, 24 | eqeq12d 2245 |
. . . . . . 7
|
| 26 | 2 | usgrf1 16055 |
. . . . . . . . 9
|
| 27 | 26 | adantr 276 |
. . . . . . . 8
|
| 28 | elrabi 2958 |
. . . . . . . . . 10
| |
| 29 | 28, 3 | eleq2s 2325 |
. . . . . . . . 9
|
| 30 | elrabi 2958 |
. . . . . . . . . 10
| |
| 31 | 30, 3 | eleq2s 2325 |
. . . . . . . . 9
|
| 32 | 29, 31 | anim12i 338 |
. . . . . . . 8
|
| 33 | f1fveq 5918 |
. . . . . . . 8
| |
| 34 | 27, 32, 33 | syl2an 289 |
. . . . . . 7
|
| 35 | vtxex 15898 |
. . . . . . . . . . . 12
| |
| 36 | 1, 35 | eqeltrid 2317 |
. . . . . . . . . . 11
|
| 37 | riotaexg 5980 |
. . . . . . . . . . 11
| |
| 38 | 36, 37 | syl 14 |
. . . . . . . . . 10
|
| 39 | 38 | adantr 276 |
. . . . . . . . 9
|
| 40 | simpr 110 |
. . . . . . . . 9
| |
| 41 | riotaexg 5980 |
. . . . . . . . . . 11
| |
| 42 | 36, 41 | syl 14 |
. . . . . . . . . 10
|
| 43 | 42 | adantr 276 |
. . . . . . . . 9
|
| 44 | preq12bg 3857 |
. . . . . . . . 9
| |
| 45 | 39, 40, 43, 40, 44 | syl22anc 1274 |
. . . . . . . 8
|
| 46 | 45 | adantr 276 |
. . . . . . 7
|
| 47 | 25, 34, 46 | 3bitr3d 218 |
. . . . . 6
|
| 48 | 47 | adantr 276 |
. . . . 5
|
| 49 | 16, 48 | mpbird 167 |
. . . 4
|
| 50 | 49 | ex 115 |
. . 3
|
| 51 | 50 | ralrimivva 2613 |
. 2
|
| 52 | usgredg2v.f |
. . 3
| |
| 53 | fveqeq2 5651 |
. . . 4
| |
| 54 | 53 | riotabidv 5978 |
. . 3
|
| 55 | 52, 54 | f1mpt 5917 |
. 2
|
| 56 | 6, 51, 55 | sylanbrc 417 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| 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 619 ax-in2 620 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-13 2203 ax-14 2204 ax-ext 2212 ax-sep 4208 ax-nul 4216 ax-pow 4266 ax-pr 4301 ax-un 4532 ax-setind 4637 ax-iinf 4688 ax-cnex 8128 ax-resscn 8129 ax-1cn 8130 ax-1re 8131 ax-icn 8132 ax-addcl 8133 ax-addrcl 8134 ax-mulcl 8135 ax-addcom 8137 ax-mulcom 8138 ax-addass 8139 ax-mulass 8140 ax-distr 8141 ax-i2m1 8142 ax-1rid 8144 ax-0id 8145 ax-rnegex 8146 ax-cnre 8148 |
| This theorem depends on definitions: df-bi 117 df-dc 842 df-3or 1005 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1810 df-eu 2081 df-mo 2082 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-ne 2402 df-ral 2514 df-rex 2515 df-reu 2516 df-rmo 2517 df-rab 2518 df-v 2803 df-sbc 3031 df-csb 3127 df-dif 3201 df-un 3203 df-in 3205 df-ss 3212 df-nul 3494 df-if 3605 df-pw 3655 df-sn 3676 df-pr 3677 df-op 3679 df-uni 3895 df-int 3930 df-br 4090 df-opab 4152 df-mpt 4153 df-tr 4189 df-id 4392 df-iord 4465 df-on 4467 df-suc 4470 df-iom 4691 df-xp 4733 df-rel 4734 df-cnv 4735 df-co 4736 df-dm 4737 df-rn 4738 df-res 4739 df-ima 4740 df-iota 5288 df-fun 5330 df-fn 5331 df-f 5332 df-f1 5333 df-fo 5334 df-f1o 5335 df-fv 5336 df-riota 5976 df-ov 6026 df-oprab 6027 df-mpo 6028 df-1st 6308 df-2nd 6309 df-1o 6587 df-2o 6588 df-er 6707 df-en 6915 df-sub 8357 df-inn 9149 df-2 9207 df-3 9208 df-4 9209 df-5 9210 df-6 9211 df-7 9212 df-8 9213 df-9 9214 df-n0 9408 df-dec 9617 df-ndx 13108 df-slot 13109 df-base 13111 df-edgf 15885 df-vtx 15894 df-iedg 15895 df-edg 15938 df-umgren 15974 df-usgren 16036 |
| This theorem is referenced by: usgriedgdomord 16105 |
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