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| Mirrors > Home > MPE Home > Th. List > umgr2v2eiedg | Structured version Visualization version GIF version | ||
| Description: The edge function in a multigraph with two edges connecting the same two vertices. (Contributed by AV, 17-Dec-2020.) |
| Ref | Expression |
|---|---|
| umgr2v2evtx.g | ⊢ 𝐺 = 〈𝑉, {〈0, {𝐴, 𝐵}〉, 〈1, {𝐴, 𝐵}〉}〉 |
| Ref | Expression |
|---|---|
| umgr2v2eiedg | ⊢ ((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) → (iEdg‘𝐺) = {〈0, {𝐴, 𝐵}〉, 〈1, {𝐴, 𝐵}〉}) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | umgr2v2evtx.g | . . 3 ⊢ 𝐺 = 〈𝑉, {〈0, {𝐴, 𝐵}〉, 〈1, {𝐴, 𝐵}〉}〉 | |
| 2 | 1 | fveq2i 6880 | . 2 ⊢ (iEdg‘𝐺) = (iEdg‘〈𝑉, {〈0, {𝐴, 𝐵}〉, 〈1, {𝐴, 𝐵}〉}〉) |
| 3 | simp1 1154 | . . 3 ⊢ ((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) → 𝑉 ∈ 𝑊) | |
| 4 | prex 5396 | . . 3 ⊢ {〈0, {𝐴, 𝐵}〉, 〈1, {𝐴, 𝐵}〉} ∈ V | |
| 5 | opiedgfv 29567 | . . 3 ⊢ ((𝑉 ∈ 𝑊 ∧ {〈0, {𝐴, 𝐵}〉, 〈1, {𝐴, 𝐵}〉} ∈ V) → (iEdg‘〈𝑉, {〈0, {𝐴, 𝐵}〉, 〈1, {𝐴, 𝐵}〉}〉) = {〈0, {𝐴, 𝐵}〉, 〈1, {𝐴, 𝐵}〉}) | |
| 6 | 3, 4, 5 | sylancl 598 | . 2 ⊢ ((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) → (iEdg‘〈𝑉, {〈0, {𝐴, 𝐵}〉, 〈1, {𝐴, 𝐵}〉}〉) = {〈0, {𝐴, 𝐵}〉, 〈1, {𝐴, 𝐵}〉}) |
| 7 | 2, 6 | eqtrid 2808 | 1 ⊢ ((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) → (iEdg‘𝐺) = {〈0, {𝐴, 𝐵}〉, 〈1, {𝐴, 𝐵}〉}) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ w3a 1103 = wceq 1570 ∈ wcel 2145 Vcvv 3451 {cpr 4586 〈cop 4590 ‘cfv 6531 0cc0 11181 1c1 11182 iEdgciedg 29557 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pr 5391 ax-un 7740 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-iota 6487 df-fun 6533 df-fv 6539 df-2nd 7991 df-iedg 29559 |
| This theorem is used by: umgr2v2eedg 30087 umgr2v2e 30088 umgr2v2evd2 30090 |
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