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Mirrors > Home > MPE Home > Th. List > usgr1eop | Structured version Visualization version GIF version |
Description: A simple graph with (at least) two different vertices and one edge. If the two vertices were not different, the edge would be a loop. (Contributed by Alexander van der Vekens, 10-Aug-2017.) (Revised by AV, 18-Oct-2020.) |
Ref | Expression |
---|---|
usgr1eop | ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → (𝐵 ≠ 𝐶 → ⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩ ∈ USGraph)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2725 | . . 3 ⊢ (Vtx‘⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩) = (Vtx‘⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩) | |
2 | simpllr 774 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐴 ∈ 𝑋) | |
3 | simplrl 775 | . . . 4 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐵 ∈ 𝑉) | |
4 | simpl 481 | . . . . . 6 ⊢ ((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) → 𝑉 ∈ 𝑊) | |
5 | 4 | adantr 479 | . . . . 5 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝑉 ∈ 𝑊) |
6 | snex 5425 | . . . . . 6 ⊢ {⟨𝐴, {𝐵, 𝐶}⟩} ∈ V | |
7 | 6 | a1i 11 | . . . . 5 ⊢ (𝐵 ≠ 𝐶 → {⟨𝐴, {𝐵, 𝐶}⟩} ∈ V) |
8 | opvtxfv 28833 | . . . . 5 ⊢ ((𝑉 ∈ 𝑊 ∧ {⟨𝐴, {𝐵, 𝐶}⟩} ∈ V) → (Vtx‘⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩) = 𝑉) | |
9 | 5, 7, 8 | syl2an 594 | . . . 4 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → (Vtx‘⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩) = 𝑉) |
10 | 3, 9 | eleqtrrd 2828 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐵 ∈ (Vtx‘⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩)) |
11 | simprr 771 | . . . . 5 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝐶 ∈ 𝑉) | |
12 | 6 | a1i 11 | . . . . . 6 ⊢ ((𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉) → {⟨𝐴, {𝐵, 𝐶}⟩} ∈ V) |
13 | 4, 12, 8 | syl2an 594 | . . . . 5 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → (Vtx‘⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩) = 𝑉) |
14 | 11, 13 | eleqtrrd 2828 | . . . 4 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝐶 ∈ (Vtx‘⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩)) |
15 | 14 | adantr 479 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐶 ∈ (Vtx‘⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩)) |
16 | opiedgfv 28836 | . . . 4 ⊢ ((𝑉 ∈ 𝑊 ∧ {⟨𝐴, {𝐵, 𝐶}⟩} ∈ V) → (iEdg‘⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩) = {⟨𝐴, {𝐵, 𝐶}⟩}) | |
17 | 5, 7, 16 | syl2an 594 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → (iEdg‘⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩) = {⟨𝐴, {𝐵, 𝐶}⟩}) |
18 | simpr 483 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐵 ≠ 𝐶) | |
19 | 1, 2, 10, 15, 17, 18 | usgr1e 29074 | . 2 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → ⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩ ∈ USGraph) |
20 | 19 | ex 411 | 1 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → (𝐵 ≠ 𝐶 → ⟨𝑉, {⟨𝐴, {𝐵, 𝐶}⟩}⟩ ∈ USGraph)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 394 = wceq 1533 ∈ wcel 2098 ≠ wne 2930 Vcvv 3463 {csn 4622 {cpr 4624 ⟨cop 4628 ‘cfv 6541 Vtxcvtx 28825 iEdgciedg 28826 USGraphcusgr 28978 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2696 ax-sep 5292 ax-nul 5299 ax-pow 5357 ax-pr 5421 ax-un 7736 ax-cnex 11192 ax-resscn 11193 ax-1cn 11194 ax-icn 11195 ax-addcl 11196 ax-addrcl 11197 ax-mulcl 11198 ax-mulrcl 11199 ax-mulcom 11200 ax-addass 11201 ax-mulass 11202 ax-distr 11203 ax-i2m1 11204 ax-1ne0 11205 ax-1rid 11206 ax-rnegex 11207 ax-rrecex 11208 ax-cnre 11209 ax-pre-lttri 11210 ax-pre-lttrn 11211 ax-pre-ltadd 11212 ax-pre-mulgt0 11213 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2703 df-cleq 2717 df-clel 2802 df-nfc 2877 df-ne 2931 df-nel 3037 df-ral 3052 df-rex 3061 df-reu 3365 df-rab 3420 df-v 3465 df-sbc 3769 df-csb 3885 df-dif 3942 df-un 3944 df-in 3946 df-ss 3956 df-pss 3958 df-nul 4317 df-if 4523 df-pw 4598 df-sn 4623 df-pr 4625 df-op 4629 df-uni 4902 df-int 4943 df-iun 4991 df-br 5142 df-opab 5204 df-mpt 5225 df-tr 5259 df-id 5568 df-eprel 5574 df-po 5582 df-so 5583 df-fr 5625 df-we 5627 df-xp 5676 df-rel 5677 df-cnv 5678 df-co 5679 df-dm 5680 df-rn 5681 df-res 5682 df-ima 5683 df-pred 6298 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6493 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7867 df-1st 7989 df-2nd 7990 df-frecs 8283 df-wrecs 8314 df-recs 8388 df-rdg 8427 df-1o 8483 df-oadd 8487 df-er 8721 df-en 8961 df-dom 8962 df-sdom 8963 df-fin 8964 df-dju 9922 df-card 9960 df-pnf 11278 df-mnf 11279 df-xr 11280 df-ltxr 11281 df-le 11282 df-sub 11474 df-neg 11475 df-nn 12241 df-2 12303 df-n0 12501 df-xnn0 12573 df-z 12587 df-uz 12851 df-fz 13515 df-hash 14320 df-vtx 28827 df-iedg 28828 df-edg 28877 df-uspgr 28979 df-usgr 28980 |
This theorem is referenced by: usgr2v1e2w 29081 |
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