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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 16680 |
. . . 4
|
| 5 | 4 | ralrimiva 2623 |
. . 3
|
| 6 | 5 | adantr 276 |
. 2
|
| 7 | simpr 110 |
. . . . . . . 8
| |
| 8 | preq1 3788 |
. . . . . . . . . 10
| |
| 9 | 8 | eqeq2d 2250 |
. . . . . . . . 9
|
| 10 | 9 | cbvriotavw 6052 |
. . . . . . . 8
|
| 11 | 8 | eqeq2d 2250 |
. . . . . . . . 9
|
| 12 | 11 | cbvriotavw 6052 |
. . . . . . . 8
|
| 13 | 7, 10, 12 | 3eqtr4g 2296 |
. . . . . . 7
|
| 14 | eqid 2238 |
. . . . . . 7
| |
| 15 | 13, 14 | jctir 313 |
. . . . . 6
|
| 16 | 15 | orcd 745 |
. . . . 5
|
| 17 | simpl 109 |
. . . . . . . . . 10
| |
| 18 | simpl 109 |
. . . . . . . . . 10
| |
| 19 | 17, 18 | anim12i 338 |
. . . . . . . . 9
|
| 20 | 1, 2, 3 | usgredg2vlem2 16681 |
. . . . . . . . 9
|
| 21 | 19, 10, 20 | mpisyl 1496 |
. . . . . . . 8
|
| 22 | an3 595 |
. . . . . . . . 9
| |
| 23 | 1, 2, 3 | usgredg2vlem2 16681 |
. . . . . . . . 9
|
| 24 | 22, 12, 23 | mpisyl 1496 |
. . . . . . . 8
|
| 25 | 21, 24 | eqeq12d 2253 |
. . . . . . 7
|
| 26 | 2 | usgrf1 16633 |
. . . . . . . . 9
|
| 27 | 26 | adantr 276 |
. . . . . . . 8
|
| 28 | elrabi 2979 |
. . . . . . . . . 10
| |
| 29 | 28, 3 | eleq2s 2333 |
. . . . . . . . 9
|
| 30 | elrabi 2979 |
. . . . . . . . . 10
| |
| 31 | 30, 3 | eleq2s 2333 |
. . . . . . . . 9
|
| 32 | 29, 31 | anim12i 338 |
. . . . . . . 8
|
| 33 | f1fveq 5981 |
. . . . . . . 8
| |
| 34 | 27, 32, 33 | syl2an 289 |
. . . . . . 7
|
| 35 | vtxex 16476 |
. . . . . . . . . . . 12
| |
| 36 | 1, 35 | eqeltrid 2325 |
. . . . . . . . . . 11
|
| 37 | riotaexg 6045 |
. . . . . . . . . . 11
| |
| 38 | 36, 37 | syl 14 |
. . . . . . . . . 10
|
| 39 | 38 | adantr 276 |
. . . . . . . . 9
|
| 40 | simpr 110 |
. . . . . . . . 9
| |
| 41 | riotaexg 6045 |
. . . . . . . . . . 11
| |
| 42 | 36, 41 | syl 14 |
. . . . . . . . . 10
|
| 43 | 42 | adantr 276 |
. . . . . . . . 9
|
| 44 | preq12bg 3898 |
. . . . . . . . 9
| |
| 45 | 39, 40, 43, 40, 44 | syl22anc 1279 |
. . . . . . . 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 2632 |
. 2
|
| 52 | usgredg2v.f |
. . 3
| |
| 53 | fveqeq2 5707 |
. . . 4
| |
| 54 | 53 | riotabidv 6043 |
. . 3
|
| 55 | 52, 54 | f1mpt 5980 |
. 2
|
| 56 | 6, 51, 55 | sylanbrc 421 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-nul 4261 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-iinf 4737 ax-cnex 8277 ax-resscn 8278 ax-1cn 8279 ax-1re 8280 ax-icn 8281 ax-addcl 8282 ax-addrcl 8283 ax-mulcl 8284 ax-addcom 8286 ax-mulcom 8287 ax-addass 8288 ax-mulass 8289 ax-distr 8290 ax-i2m1 8291 ax-1rid 8293 ax-0id 8294 ax-rnegex 8295 ax-cnre 8297 |
| This proof depends on definitions: df-bi 117 df-dc 847 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-reu 2535 df-rmo 2536 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-if 3639 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-br 4132 df-opab 4194 df-mpt 4195 df-tr 4232 df-id 4440 df-iord 4513 df-on 4515 df-suc 4518 df-iom 4740 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-rn 4787 df-res 4788 df-ima 4789 df-iota 5340 df-fun 5382 df-fn 5383 df-f 5384 df-f1 5385 df-fo 5386 df-f1o 5387 df-fv 5388 df-riota 6041 df-ov 6091 df-oprab 6092 df-mpo 6093 df-1st 6378 df-2nd 6379 df-1o 6691 df-2o 6692 df-er 6811 df-en 7028 df-sub 8507 df-inn 9315 df-2 9373 df-3 9374 df-4 9375 df-5 9376 df-6 9377 df-7 9378 df-8 9379 df-9 9380 df-n0 9576 df-dec 9790 df-ndx 13414 df-slot 13415 df-base 13417 df-edgf 16463 df-vtx 16472 df-iedg 16473 df-edg 16516 df-umgren 16552 df-usgren 16614 |
| This theorem is used by: usgriedgdomord 16683 |
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