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| Mirrors > Home > MPE Home > Th. List > umgrspanop | Structured version Visualization version GIF version | ||
| Description: A spanning subgraph of a multigraph represented by an ordered pair is a multigraph. (Contributed by AV, 27-Nov-2020.) |
| Ref | Expression |
|---|---|
| uhgrspanop.v | ⊢ 𝑉 = (Vtx‘𝐺) |
| uhgrspanop.e | ⊢ 𝐸 = (iEdg‘𝐺) |
| Ref | Expression |
|---|---|
| umgrspanop | ⊢ (𝐺 ∈ UMGraph → 〈𝑉, (𝐸 ↾ 𝐴)〉 ∈ UMGraph) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | uhgrspanop.v | . . . . 5 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 2 | uhgrspanop.e | . . . . 5 ⊢ 𝐸 = (iEdg‘𝐺) | |
| 3 | vex 3442 | . . . . . 6 ⊢ 𝑔 ∈ V | |
| 4 | 3 | a1i 11 | . . . . 5 ⊢ ((𝐺 ∈ UMGraph ∧ ((Vtx‘𝑔) = 𝑉 ∧ (iEdg‘𝑔) = (𝐸 ↾ 𝐴))) → 𝑔 ∈ V) |
| 5 | simprl 770 | . . . . 5 ⊢ ((𝐺 ∈ UMGraph ∧ ((Vtx‘𝑔) = 𝑉 ∧ (iEdg‘𝑔) = (𝐸 ↾ 𝐴))) → (Vtx‘𝑔) = 𝑉) | |
| 6 | simprr 772 | . . . . 5 ⊢ ((𝐺 ∈ UMGraph ∧ ((Vtx‘𝑔) = 𝑉 ∧ (iEdg‘𝑔) = (𝐸 ↾ 𝐴))) → (iEdg‘𝑔) = (𝐸 ↾ 𝐴)) | |
| 7 | simpl 482 | . . . . 5 ⊢ ((𝐺 ∈ UMGraph ∧ ((Vtx‘𝑔) = 𝑉 ∧ (iEdg‘𝑔) = (𝐸 ↾ 𝐴))) → 𝐺 ∈ UMGraph) | |
| 8 | 1, 2, 4, 5, 6, 7 | umgrspan 29257 | . . . 4 ⊢ ((𝐺 ∈ UMGraph ∧ ((Vtx‘𝑔) = 𝑉 ∧ (iEdg‘𝑔) = (𝐸 ↾ 𝐴))) → 𝑔 ∈ UMGraph) |
| 9 | 8 | ex 412 | . . 3 ⊢ (𝐺 ∈ UMGraph → (((Vtx‘𝑔) = 𝑉 ∧ (iEdg‘𝑔) = (𝐸 ↾ 𝐴)) → 𝑔 ∈ UMGraph)) |
| 10 | 9 | alrimiv 1927 | . 2 ⊢ (𝐺 ∈ UMGraph → ∀𝑔(((Vtx‘𝑔) = 𝑉 ∧ (iEdg‘𝑔) = (𝐸 ↾ 𝐴)) → 𝑔 ∈ UMGraph)) |
| 11 | 1 | fvexi 6840 | . . 3 ⊢ 𝑉 ∈ V |
| 12 | 11 | a1i 11 | . 2 ⊢ (𝐺 ∈ UMGraph → 𝑉 ∈ V) |
| 13 | 2 | fvexi 6840 | . . . 4 ⊢ 𝐸 ∈ V |
| 14 | 13 | resex 5984 | . . 3 ⊢ (𝐸 ↾ 𝐴) ∈ V |
| 15 | 14 | a1i 11 | . 2 ⊢ (𝐺 ∈ UMGraph → (𝐸 ↾ 𝐴) ∈ V) |
| 16 | 10, 12, 15 | gropeld 28996 | 1 ⊢ (𝐺 ∈ UMGraph → 〈𝑉, (𝐸 ↾ 𝐴)〉 ∈ UMGraph) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1540 ∈ wcel 2109 Vcvv 3438 〈cop 4585 ↾ cres 5625 ‘cfv 6486 Vtxcvtx 28959 iEdgciedg 28960 UMGraphcumgr 29044 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7675 ax-cnex 11084 ax-resscn 11085 ax-1cn 11086 ax-icn 11087 ax-addcl 11088 ax-addrcl 11089 ax-mulcl 11090 ax-mulrcl 11091 ax-mulcom 11092 ax-addass 11093 ax-mulass 11094 ax-distr 11095 ax-i2m1 11096 ax-1ne0 11097 ax-1rid 11098 ax-rnegex 11099 ax-rrecex 11100 ax-cnre 11101 ax-pre-lttri 11102 ax-pre-lttrn 11103 ax-pre-ltadd 11104 ax-pre-mulgt0 11105 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-reu 3346 df-rab 3397 df-v 3440 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4862 df-int 4900 df-iun 4946 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5518 df-eprel 5523 df-po 5531 df-so 5532 df-fr 5576 df-we 5578 df-xp 5629 df-rel 5630 df-cnv 5631 df-co 5632 df-dm 5633 df-rn 5634 df-res 5635 df-ima 5636 df-pred 6253 df-ord 6314 df-on 6315 df-lim 6316 df-suc 6317 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-riota 7310 df-ov 7356 df-oprab 7357 df-mpo 7358 df-om 7807 df-1st 7931 df-2nd 7932 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-1o 8395 df-er 8632 df-en 8880 df-dom 8881 df-sdom 8882 df-fin 8883 df-card 9854 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11367 df-neg 11368 df-nn 12147 df-2 12209 df-n0 12403 df-z 12490 df-uz 12754 df-fz 13429 df-hash 14256 df-vtx 28961 df-iedg 28962 df-edg 29011 df-uhgr 29021 df-upgr 29045 df-umgr 29046 df-subgr 29231 |
| This theorem is referenced by: (None) |
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