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Mirrors > Home > MPE Home > Th. List > vtxdumgrval | Structured version Visualization version GIF version |
Description: The value of the vertex degree function for a multigraph. (Contributed by Alexander van der Vekens, 20-Dec-2017.) (Revised by AV, 23-Feb-2021.) |
Ref | Expression |
---|---|
vtxdlfgrval.v | β’ π = (VtxβπΊ) |
vtxdlfgrval.i | β’ πΌ = (iEdgβπΊ) |
vtxdlfgrval.a | β’ π΄ = dom πΌ |
vtxdlfgrval.d | β’ π· = (VtxDegβπΊ) |
Ref | Expression |
---|---|
vtxdumgrval | β’ ((πΊ β UMGraph β§ π β π) β (π·βπ) = (β―β{π₯ β π΄ β£ π β (πΌβπ₯)})) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vtxdlfgrval.v | . . . 4 β’ π = (VtxβπΊ) | |
2 | vtxdlfgrval.i | . . . 4 β’ πΌ = (iEdgβπΊ) | |
3 | 1, 2 | umgrislfupgr 28910 | . . 3 β’ (πΊ β UMGraph β (πΊ β UPGraph β§ πΌ:dom πΌβΆ{π₯ β π« π β£ 2 β€ (β―βπ₯)})) |
4 | vtxdlfgrval.a | . . . . . 6 β’ π΄ = dom πΌ | |
5 | 4 | eqcomi 2736 | . . . . 5 β’ dom πΌ = π΄ |
6 | 5 | feq2i 6708 | . . . 4 β’ (πΌ:dom πΌβΆ{π₯ β π« π β£ 2 β€ (β―βπ₯)} β πΌ:π΄βΆ{π₯ β π« π β£ 2 β€ (β―βπ₯)}) |
7 | 6 | biimpi 215 | . . 3 β’ (πΌ:dom πΌβΆ{π₯ β π« π β£ 2 β€ (β―βπ₯)} β πΌ:π΄βΆ{π₯ β π« π β£ 2 β€ (β―βπ₯)}) |
8 | 3, 7 | simplbiim 504 | . 2 β’ (πΊ β UMGraph β πΌ:π΄βΆ{π₯ β π« π β£ 2 β€ (β―βπ₯)}) |
9 | vtxdlfgrval.d | . . 3 β’ π· = (VtxDegβπΊ) | |
10 | 1, 2, 4, 9 | vtxdlfgrval 29273 | . 2 β’ ((πΌ:π΄βΆ{π₯ β π« π β£ 2 β€ (β―βπ₯)} β§ π β π) β (π·βπ) = (β―β{π₯ β π΄ β£ π β (πΌβπ₯)})) |
11 | 8, 10 | sylan 579 | 1 β’ ((πΊ β UMGraph β§ π β π) β (π·βπ) = (β―β{π₯ β π΄ β£ π β (πΌβπ₯)})) |
Colors of variables: wff setvar class |
Syntax hints: β wi 4 β§ wa 395 = wceq 1534 β wcel 2099 {crab 3427 π« cpw 4598 class class class wbr 5142 dom cdm 5672 βΆwf 6538 βcfv 6542 β€ cle 11265 2c2 12283 β―chash 14307 Vtxcvtx 28783 iEdgciedg 28784 UPGraphcupgr 28867 UMGraphcumgr 28868 VtxDegcvtxdg 29253 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2164 ax-ext 2698 ax-rep 5279 ax-sep 5293 ax-nul 5300 ax-pow 5359 ax-pr 5423 ax-un 7732 ax-cnex 11180 ax-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-addrcl 11185 ax-mulcl 11186 ax-mulrcl 11187 ax-mulcom 11188 ax-addass 11189 ax-mulass 11190 ax-distr 11191 ax-i2m1 11192 ax-1ne0 11193 ax-1rid 11194 ax-rnegex 11195 ax-rrecex 11196 ax-cnre 11197 ax-pre-lttri 11198 ax-pre-lttrn 11199 ax-pre-ltadd 11200 ax-pre-mulgt0 11201 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2529 df-eu 2558 df-clab 2705 df-cleq 2719 df-clel 2805 df-nfc 2880 df-ne 2936 df-nel 3042 df-ral 3057 df-rex 3066 df-reu 3372 df-rab 3428 df-v 3471 df-sbc 3775 df-csb 3890 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-pss 3963 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-op 4631 df-uni 4904 df-int 4945 df-iun 4993 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7863 df-1st 7985 df-2nd 7986 df-frecs 8278 df-wrecs 8309 df-recs 8383 df-rdg 8422 df-1o 8478 df-er 8716 df-en 8954 df-dom 8955 df-sdom 8956 df-fin 8957 df-card 9948 df-pnf 11266 df-mnf 11267 df-xr 11268 df-ltxr 11269 df-le 11270 df-sub 11462 df-neg 11463 df-nn 12229 df-2 12291 df-n0 12489 df-xnn0 12561 df-z 12575 df-uz 12839 df-xadd 13111 df-fz 13503 df-hash 14308 df-upgr 28869 df-umgr 28870 df-vtxdg 29254 |
This theorem is referenced by: vtxdusgrval 29275 umgr2v2evd2 29315 vdn0conngrumgrv2 29980 |
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