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| Mirrors > Home > ILE Home > Th. List > umgrspanop | 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 2824 | . . . . . 6 ⊢ 𝑔 ∈ V | |
| 4 | 3 | a1i 9 | . . . . 5 ⊢ ((𝐺 ∈ UMGraph ∧ ((Vtx‘𝑔) = 𝑉 ∧ (iEdg‘𝑔) = (𝐸 ↾ 𝐴))) → 𝑔 ∈ V) |
| 5 | simprl 535 | . . . . 5 ⊢ ((𝐺 ∈ UMGraph ∧ ((Vtx‘𝑔) = 𝑉 ∧ (iEdg‘𝑔) = (𝐸 ↾ 𝐴))) → (Vtx‘𝑔) = 𝑉) | |
| 6 | simprr 537 | . . . . 5 ⊢ ((𝐺 ∈ UMGraph ∧ ((Vtx‘𝑔) = 𝑉 ∧ (iEdg‘𝑔) = (𝐸 ↾ 𝐴))) → (iEdg‘𝑔) = (𝐸 ↾ 𝐴)) | |
| 7 | simpl 109 | . . . . 5 ⊢ ((𝐺 ∈ UMGraph ∧ ((Vtx‘𝑔) = 𝑉 ∧ (iEdg‘𝑔) = (𝐸 ↾ 𝐴))) → 𝐺 ∈ UMGraph) | |
| 8 | 1, 2, 4, 5, 6, 7 | umgrspan 16726 | . . . 4 ⊢ ((𝐺 ∈ UMGraph ∧ ((Vtx‘𝑔) = 𝑉 ∧ (iEdg‘𝑔) = (𝐸 ↾ 𝐴))) → 𝑔 ∈ UMGraph) |
| 9 | 8 | ex 115 | . . 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 | vtxex 16464 | . . 3 ⊢ (𝐺 ∈ UMGraph → (Vtx‘𝐺) ∈ V) | |
| 12 | 1, 11 | eqeltrid 2325 | . 2 ⊢ (𝐺 ∈ UMGraph → 𝑉 ∈ V) |
| 13 | iedgex 16465 | . . . 4 ⊢ (𝐺 ∈ UMGraph → (iEdg‘𝐺) ∈ V) | |
| 14 | 2, 13 | eqeltrid 2325 | . . 3 ⊢ (𝐺 ∈ UMGraph → 𝐸 ∈ V) |
| 15 | resexg 5105 | . . 3 ⊢ (𝐸 ∈ V → (𝐸 ↾ 𝐴) ∈ V) | |
| 16 | 14, 15 | syl 14 | . 2 ⊢ (𝐺 ∈ UMGraph → (𝐸 ↾ 𝐴) ∈ V) |
| 17 | 10, 12, 16 | gropeld 16495 | 1 ⊢ (𝐺 ∈ UMGraph → 〈𝑉, (𝐸 ↾ 𝐴)〉 ∈ UMGraph) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 = wceq 1402 ∈ wcel 2209 Vcvv 2821 〈cop 3712 ↾ cres 4778 ‘cfv 5380 Vtxcvtx 16458 iEdgciedg 16459 UMGraphcumgr 16538 |
| 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-cnex 8276 ax-resscn 8277 ax-1cn 8278 ax-1re 8279 ax-icn 8280 ax-addcl 8281 ax-addrcl 8282 ax-mulcl 8283 ax-addcom 8285 ax-mulcom 8286 ax-addass 8287 ax-mulass 8288 ax-distr 8289 ax-i2m1 8290 ax-1rid 8292 ax-0id 8293 ax-rnegex 8294 ax-cnre 8296 |
| This proof depends on definitions: df-bi 117 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-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-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-en 7027 df-sub 8506 df-inn 9314 df-2 9372 df-3 9373 df-4 9374 df-5 9375 df-6 9376 df-7 9377 df-8 9378 df-9 9379 df-n0 9575 df-dec 9789 df-ndx 13413 df-slot 13414 df-base 13416 df-edgf 16451 df-vtx 16460 df-iedg 16461 df-edg 16504 df-uhgrm 16515 df-upgren 16539 df-umgren 16540 df-subgr 16700 |
| This theorem is used by: (None) |
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