Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > usgredg2vtxeuALT | Structured version Visualization version GIF version |
Description: Alternate proof of usgredg2vtxeu 27175, using edgiedgb 27011, the general translation from (iEdg‘𝐺) to (Edg‘𝐺). (Contributed by AV, 18-Oct-2020.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
usgredg2vtxeuALT | ⊢ ((𝐺 ∈ USGraph ∧ 𝐸 ∈ (Edg‘𝐺) ∧ 𝑌 ∈ 𝐸) → ∃!𝑦 ∈ (Vtx‘𝐺)𝐸 = {𝑌, 𝑦}) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | usgruhgr 27140 | . . . 4 ⊢ (𝐺 ∈ USGraph → 𝐺 ∈ UHGraph) | |
2 | eqid 2739 | . . . . 5 ⊢ (iEdg‘𝐺) = (iEdg‘𝐺) | |
3 | 2 | uhgredgiedgb 27083 | . . . 4 ⊢ (𝐺 ∈ UHGraph → (𝐸 ∈ (Edg‘𝐺) ↔ ∃𝑥 ∈ dom (iEdg‘𝐺)𝐸 = ((iEdg‘𝐺)‘𝑥))) |
4 | 1, 3 | syl 17 | . . 3 ⊢ (𝐺 ∈ USGraph → (𝐸 ∈ (Edg‘𝐺) ↔ ∃𝑥 ∈ dom (iEdg‘𝐺)𝐸 = ((iEdg‘𝐺)‘𝑥))) |
5 | eqid 2739 | . . . . . . . . 9 ⊢ (Vtx‘𝐺) = (Vtx‘𝐺) | |
6 | 5, 2 | usgredgreu 27172 | . . . . . . . 8 ⊢ ((𝐺 ∈ USGraph ∧ 𝑥 ∈ dom (iEdg‘𝐺) ∧ 𝑌 ∈ ((iEdg‘𝐺)‘𝑥)) → ∃!𝑦 ∈ (Vtx‘𝐺)((iEdg‘𝐺)‘𝑥) = {𝑌, 𝑦}) |
7 | 6 | 3expia 1122 | . . . . . . 7 ⊢ ((𝐺 ∈ USGraph ∧ 𝑥 ∈ dom (iEdg‘𝐺)) → (𝑌 ∈ ((iEdg‘𝐺)‘𝑥) → ∃!𝑦 ∈ (Vtx‘𝐺)((iEdg‘𝐺)‘𝑥) = {𝑌, 𝑦})) |
8 | 7 | 3adant3 1133 | . . . . . 6 ⊢ ((𝐺 ∈ USGraph ∧ 𝑥 ∈ dom (iEdg‘𝐺) ∧ 𝐸 = ((iEdg‘𝐺)‘𝑥)) → (𝑌 ∈ ((iEdg‘𝐺)‘𝑥) → ∃!𝑦 ∈ (Vtx‘𝐺)((iEdg‘𝐺)‘𝑥) = {𝑌, 𝑦})) |
9 | eleq2 2822 | . . . . . . . 8 ⊢ (𝐸 = ((iEdg‘𝐺)‘𝑥) → (𝑌 ∈ 𝐸 ↔ 𝑌 ∈ ((iEdg‘𝐺)‘𝑥))) | |
10 | eqeq1 2743 | . . . . . . . . 9 ⊢ (𝐸 = ((iEdg‘𝐺)‘𝑥) → (𝐸 = {𝑌, 𝑦} ↔ ((iEdg‘𝐺)‘𝑥) = {𝑌, 𝑦})) | |
11 | 10 | reubidv 3293 | . . . . . . . 8 ⊢ (𝐸 = ((iEdg‘𝐺)‘𝑥) → (∃!𝑦 ∈ (Vtx‘𝐺)𝐸 = {𝑌, 𝑦} ↔ ∃!𝑦 ∈ (Vtx‘𝐺)((iEdg‘𝐺)‘𝑥) = {𝑌, 𝑦})) |
12 | 9, 11 | imbi12d 348 | . . . . . . 7 ⊢ (𝐸 = ((iEdg‘𝐺)‘𝑥) → ((𝑌 ∈ 𝐸 → ∃!𝑦 ∈ (Vtx‘𝐺)𝐸 = {𝑌, 𝑦}) ↔ (𝑌 ∈ ((iEdg‘𝐺)‘𝑥) → ∃!𝑦 ∈ (Vtx‘𝐺)((iEdg‘𝐺)‘𝑥) = {𝑌, 𝑦}))) |
13 | 12 | 3ad2ant3 1136 | . . . . . 6 ⊢ ((𝐺 ∈ USGraph ∧ 𝑥 ∈ dom (iEdg‘𝐺) ∧ 𝐸 = ((iEdg‘𝐺)‘𝑥)) → ((𝑌 ∈ 𝐸 → ∃!𝑦 ∈ (Vtx‘𝐺)𝐸 = {𝑌, 𝑦}) ↔ (𝑌 ∈ ((iEdg‘𝐺)‘𝑥) → ∃!𝑦 ∈ (Vtx‘𝐺)((iEdg‘𝐺)‘𝑥) = {𝑌, 𝑦}))) |
14 | 8, 13 | mpbird 260 | . . . . 5 ⊢ ((𝐺 ∈ USGraph ∧ 𝑥 ∈ dom (iEdg‘𝐺) ∧ 𝐸 = ((iEdg‘𝐺)‘𝑥)) → (𝑌 ∈ 𝐸 → ∃!𝑦 ∈ (Vtx‘𝐺)𝐸 = {𝑌, 𝑦})) |
15 | 14 | 3exp 1120 | . . . 4 ⊢ (𝐺 ∈ USGraph → (𝑥 ∈ dom (iEdg‘𝐺) → (𝐸 = ((iEdg‘𝐺)‘𝑥) → (𝑌 ∈ 𝐸 → ∃!𝑦 ∈ (Vtx‘𝐺)𝐸 = {𝑌, 𝑦})))) |
16 | 15 | rexlimdv 3194 | . . 3 ⊢ (𝐺 ∈ USGraph → (∃𝑥 ∈ dom (iEdg‘𝐺)𝐸 = ((iEdg‘𝐺)‘𝑥) → (𝑌 ∈ 𝐸 → ∃!𝑦 ∈ (Vtx‘𝐺)𝐸 = {𝑌, 𝑦}))) |
17 | 4, 16 | sylbid 243 | . 2 ⊢ (𝐺 ∈ USGraph → (𝐸 ∈ (Edg‘𝐺) → (𝑌 ∈ 𝐸 → ∃!𝑦 ∈ (Vtx‘𝐺)𝐸 = {𝑌, 𝑦}))) |
18 | 17 | 3imp 1112 | 1 ⊢ ((𝐺 ∈ USGraph ∧ 𝐸 ∈ (Edg‘𝐺) ∧ 𝑌 ∈ 𝐸) → ∃!𝑦 ∈ (Vtx‘𝐺)𝐸 = {𝑌, 𝑦}) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ w3a 1088 = wceq 1542 ∈ wcel 2114 ∃wrex 3055 ∃!wreu 3056 {cpr 4528 dom cdm 5535 ‘cfv 6349 Vtxcvtx 26953 iEdgciedg 26954 Edgcedg 27004 UHGraphcuhgr 27013 USGraphcusgr 27106 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2020 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2162 ax-12 2179 ax-ext 2711 ax-sep 5177 ax-nul 5184 ax-pow 5242 ax-pr 5306 ax-un 7491 ax-cnex 10683 ax-resscn 10684 ax-1cn 10685 ax-icn 10686 ax-addcl 10687 ax-addrcl 10688 ax-mulcl 10689 ax-mulrcl 10690 ax-mulcom 10691 ax-addass 10692 ax-mulass 10693 ax-distr 10694 ax-i2m1 10695 ax-1ne0 10696 ax-1rid 10697 ax-rnegex 10698 ax-rrecex 10699 ax-cnre 10700 ax-pre-lttri 10701 ax-pre-lttrn 10702 ax-pre-ltadd 10703 ax-pre-mulgt0 10704 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2075 df-mo 2541 df-eu 2571 df-clab 2718 df-cleq 2731 df-clel 2812 df-nfc 2882 df-ne 2936 df-nel 3040 df-ral 3059 df-rex 3060 df-reu 3061 df-rmo 3062 df-rab 3063 df-v 3402 df-sbc 3686 df-csb 3801 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-pss 3872 df-nul 4222 df-if 4425 df-pw 4500 df-sn 4527 df-pr 4529 df-tp 4531 df-op 4533 df-uni 4807 df-int 4847 df-iun 4893 df-br 5041 df-opab 5103 df-mpt 5121 df-tr 5147 df-id 5439 df-eprel 5444 df-po 5452 df-so 5453 df-fr 5493 df-we 5495 df-xp 5541 df-rel 5542 df-cnv 5543 df-co 5544 df-dm 5545 df-rn 5546 df-res 5547 df-ima 5548 df-pred 6139 df-ord 6185 df-on 6186 df-lim 6187 df-suc 6188 df-iota 6307 df-fun 6351 df-fn 6352 df-f 6353 df-f1 6354 df-fo 6355 df-f1o 6356 df-fv 6357 df-riota 7139 df-ov 7185 df-oprab 7186 df-mpo 7187 df-om 7612 df-1st 7726 df-2nd 7727 df-wrecs 7988 df-recs 8049 df-rdg 8087 df-1o 8143 df-2o 8144 df-oadd 8147 df-er 8332 df-en 8568 df-dom 8569 df-sdom 8570 df-fin 8571 df-dju 9415 df-card 9453 df-pnf 10767 df-mnf 10768 df-xr 10769 df-ltxr 10770 df-le 10771 df-sub 10962 df-neg 10963 df-nn 11729 df-2 11791 df-n0 11989 df-z 12075 df-uz 12337 df-fz 12994 df-hash 13795 df-edg 27005 df-uhgr 27015 df-upgr 27039 df-umgr 27040 df-uspgr 27107 df-usgr 27108 |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |