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| Mirrors > Home > ILE Home > Th. List > usgrausgrben | GIF version | ||
| Description: The equivalence of the definitions of a simple graph, expressed with the set of vertices and the set of edges. (Contributed by AV, 2-Jan-2020.) (Revised by AV, 15-Oct-2020.) |
| Ref | Expression |
|---|---|
| ausgr.1 | ⊢ 𝐺 = {〈𝑣, 𝑒〉 ∣ 𝑒 ⊆ {𝑥 ∈ 𝒫 𝑣 ∣ 𝑥 ≈ 2o}} |
| ausgrusgri.1 | ⊢ 𝑂 = {𝑓 ∣ 𝑓:dom 𝑓–1-1→ran 𝑓} |
| Ref | Expression |
|---|---|
| usgrausgrben | ⊢ ((𝐻 ∈ 𝑊 ∧ (iEdg‘𝐻) ∈ 𝑂) → ((Vtx‘𝐻)𝐺(Edg‘𝐻) ↔ 𝐻 ∈ USGraph)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ausgr.1 | . . . . . 6 ⊢ 𝐺 = {〈𝑣, 𝑒〉 ∣ 𝑒 ⊆ {𝑥 ∈ 𝒫 𝑣 ∣ 𝑥 ≈ 2o}} | |
| 2 | ausgrusgri.1 | . . . . . 6 ⊢ 𝑂 = {𝑓 ∣ 𝑓:dom 𝑓–1-1→ran 𝑓} | |
| 3 | 1, 2 | ausgrusgrien 16183 | . . . . 5 ⊢ ((𝐻 ∈ 𝑊 ∧ (Vtx‘𝐻)𝐺(Edg‘𝐻) ∧ (iEdg‘𝐻) ∈ 𝑂) → 𝐻 ∈ USGraph) |
| 4 | 3 | 3exp 1229 | . . . 4 ⊢ (𝐻 ∈ 𝑊 → ((Vtx‘𝐻)𝐺(Edg‘𝐻) → ((iEdg‘𝐻) ∈ 𝑂 → 𝐻 ∈ USGraph))) |
| 5 | 4 | com23 78 | . . 3 ⊢ (𝐻 ∈ 𝑊 → ((iEdg‘𝐻) ∈ 𝑂 → ((Vtx‘𝐻)𝐺(Edg‘𝐻) → 𝐻 ∈ USGraph))) |
| 6 | 5 | imp 124 | . 2 ⊢ ((𝐻 ∈ 𝑊 ∧ (iEdg‘𝐻) ∈ 𝑂) → ((Vtx‘𝐻)𝐺(Edg‘𝐻) → 𝐻 ∈ USGraph)) |
| 7 | 1 | usgrausgrien 16181 | . 2 ⊢ (𝐻 ∈ USGraph → (Vtx‘𝐻)𝐺(Edg‘𝐻)) |
| 8 | 6, 7 | impbid1 142 | 1 ⊢ ((𝐻 ∈ 𝑊 ∧ (iEdg‘𝐻) ∈ 𝑂) → ((Vtx‘𝐻)𝐺(Edg‘𝐻) ↔ 𝐻 ∈ USGraph)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 = wceq 1398 ∈ wcel 2205 {cab 2220 {crab 2526 ⊆ wss 3213 𝒫 cpw 3671 class class class wbr 4111 {copab 4172 dom cdm 4751 ran crn 4752 –1-1→wf1 5351 ‘cfv 5354 2oc2o 6643 ≈ cen 6975 Vtxcvtx 16024 iEdgciedg 16025 Edgcedg 16069 USGraphcusgr 16166 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-un 4556 ax-setind 4661 ax-cnex 8220 ax-resscn 8221 ax-1cn 8222 ax-1re 8223 ax-icn 8224 ax-addcl 8225 ax-addrcl 8226 ax-mulcl 8227 ax-addcom 8229 ax-mulcom 8230 ax-addass 8231 ax-mulass 8232 ax-distr 8233 ax-i2m1 8234 ax-1rid 8236 ax-0id 8237 ax-rnegex 8238 ax-cnre 8240 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-ral 2527 df-rex 2528 df-reu 2529 df-rab 2531 df-v 2817 df-sbc 3045 df-csb 3141 df-dif 3215 df-un 3217 df-in 3219 df-ss 3226 df-if 3623 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-int 3952 df-br 4112 df-opab 4174 df-mpt 4175 df-id 4416 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 df-res 4763 df-iota 5314 df-fun 5356 df-fn 5357 df-f 5358 df-f1 5359 df-fo 5360 df-fv 5362 df-riota 6005 df-ov 6055 df-oprab 6056 df-mpo 6057 df-1st 6336 df-2nd 6337 df-sub 8448 df-inn 9240 df-2 9298 df-3 9299 df-4 9300 df-5 9301 df-6 9302 df-7 9303 df-8 9304 df-9 9305 df-n0 9499 df-dec 9713 df-ndx 13232 df-slot 13233 df-base 13235 df-edgf 16017 df-vtx 16026 df-iedg 16027 df-edg 16070 df-usgren 16168 |
| This theorem is referenced by: (None) |
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