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| Mirrors > Home > MPE Home > Th. List > Mathboxes > 2cycl2d | Structured version Visualization version GIF version | ||
| Description: Construction of a 2-cycle from two given edges in a graph. (Contributed by BTernaryTau, 16-Oct-2023.) |
| Ref | Expression |
|---|---|
| 2cycl2d.1 | ⊢ 𝑃 = 〈“𝐴𝐵𝐴”〉 |
| 2cycl2d.2 | ⊢ 𝐹 = 〈“𝐽𝐾”〉 |
| 2cycl2d.3 | ⊢ (𝜑 → (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉)) |
| 2cycl2d.4 | ⊢ (𝜑 → 𝐴 ≠ 𝐵) |
| 2cycl2d.5 | ⊢ (𝜑 → ({𝐴, 𝐵} ⊆ (𝐼‘𝐽) ∧ {𝐴, 𝐵} ⊆ (𝐼‘𝐾))) |
| 2cycl2d.6 | ⊢ 𝑉 = (Vtx‘𝐺) |
| 2cycl2d.7 | ⊢ 𝐼 = (iEdg‘𝐺) |
| 2cycl2d.8 | ⊢ (𝜑 → 𝐽 ≠ 𝐾) |
| Ref | Expression |
|---|---|
| 2cycl2d | ⊢ (𝜑 → 𝐹(Cycles‘𝐺)𝑃) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2cycl2d.1 | . 2 ⊢ 𝑃 = 〈“𝐴𝐵𝐴”〉 | |
| 2 | 2cycl2d.2 | . 2 ⊢ 𝐹 = 〈“𝐽𝐾”〉 | |
| 3 | 2cycl2d.3 | . . . 4 ⊢ (𝜑 → (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉)) | |
| 4 | simpl 487 | . . . 4 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) → 𝐴 ∈ 𝑉) | |
| 5 | 3, 4 | jccir 530 | . . 3 ⊢ (𝜑 → ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) ∧ 𝐴 ∈ 𝑉)) |
| 6 | df-3an 1103 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐴 ∈ 𝑉) ↔ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) ∧ 𝐴 ∈ 𝑉)) | |
| 7 | 5, 6 | sylibr 237 | . 2 ⊢ (𝜑 → (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉 ∧ 𝐴 ∈ 𝑉)) |
| 8 | 2cycl2d.4 | . . 3 ⊢ (𝜑 → 𝐴 ≠ 𝐵) | |
| 9 | 8 | necomd 3019 | . . 3 ⊢ (𝜑 → 𝐵 ≠ 𝐴) |
| 10 | 8, 9 | jca 520 | . 2 ⊢ (𝜑 → (𝐴 ≠ 𝐵 ∧ 𝐵 ≠ 𝐴)) |
| 11 | 2cycl2d.5 | . . 3 ⊢ (𝜑 → ({𝐴, 𝐵} ⊆ (𝐼‘𝐽) ∧ {𝐴, 𝐵} ⊆ (𝐼‘𝐾))) | |
| 12 | prcom 4703 | . . . . 5 ⊢ {𝐴, 𝐵} = {𝐵, 𝐴} | |
| 13 | 12 | sseq1i 3973 | . . . 4 ⊢ ({𝐴, 𝐵} ⊆ (𝐼‘𝐾) ↔ {𝐵, 𝐴} ⊆ (𝐼‘𝐾)) |
| 14 | 13 | anbi2i 634 | . . 3 ⊢ (({𝐴, 𝐵} ⊆ (𝐼‘𝐽) ∧ {𝐴, 𝐵} ⊆ (𝐼‘𝐾)) ↔ ({𝐴, 𝐵} ⊆ (𝐼‘𝐽) ∧ {𝐵, 𝐴} ⊆ (𝐼‘𝐾))) |
| 15 | 11, 14 | sylib 221 | . 2 ⊢ (𝜑 → ({𝐴, 𝐵} ⊆ (𝐼‘𝐽) ∧ {𝐵, 𝐴} ⊆ (𝐼‘𝐾))) |
| 16 | 2cycl2d.6 | . 2 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 17 | 2cycl2d.7 | . 2 ⊢ 𝐼 = (iEdg‘𝐺) | |
| 18 | 2cycl2d.8 | . 2 ⊢ (𝜑 → 𝐽 ≠ 𝐾) | |
| 19 | eqidd 2770 | . 2 ⊢ (𝜑 → 𝐴 = 𝐴) | |
| 20 | 1, 2, 7, 10, 15, 16, 17, 18, 19 | 2cycld 35565 | 1 ⊢ (𝜑 → 𝐹(Cycles‘𝐺)𝑃) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 ∧ w3a 1101 = wceq 1567 ∈ wcel 2149 ≠ wne 2964 ⊆ wss 3913 {cpr 4596 class class class wbr 5113 ‘cfv 6539 〈“cs2 14880 〈“cs3 14881 Vtxcvtx 29289 iEdgciedg 29290 Cyclesccycls 30077 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-rep 5242 ax-sep 5261 ax-nul 5273 ax-pow 5339 ax-pr 5407 ax-un 7735 ax-cnex 11158 ax-resscn 11159 ax-1cn 11160 ax-icn 11161 ax-addcl 11162 ax-addrcl 11163 ax-mulcl 11164 ax-mulrcl 11165 ax-mulcom 11166 ax-addass 11167 ax-mulass 11168 ax-distr 11169 ax-i2m1 11170 ax-1ne0 11171 ax-1rid 11172 ax-rnegex 11173 ax-rrecex 11174 ax-cnre 11175 ax-pre-lttri 11176 ax-pre-lttrn 11177 ax-pre-ltadd 11178 ax-pre-mulgt0 11179 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-ifp 1077 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-tp 4599 df-op 4601 df-uni 4877 df-int 4917 df-iun 4962 df-br 5114 df-opab 5178 df-mpt 5197 df-tr 5223 df-id 5559 df-eprel 5564 df-po 5572 df-so 5573 df-fr 5617 df-we 5619 df-xp 5670 df-rel 5671 df-cnv 5672 df-co 5673 df-dm 5674 df-rn 5675 df-res 5676 df-ima 5677 df-pred 6305 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6495 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-riota 7370 df-ov 7416 df-oprab 7417 df-mpo 7418 df-om 7865 df-1st 7988 df-2nd 7989 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-1o 8455 df-er 8696 df-map 8828 df-en 8946 df-dom 8947 df-sdom 8948 df-fin 8949 df-card 9927 df-pnf 11247 df-mnf 11248 df-xr 11249 df-ltxr 11250 df-le 11251 df-sub 11445 df-neg 11446 df-nn 12236 df-2 12305 df-3 12306 df-n0 12507 df-z 12594 df-uz 12865 df-fz 13538 df-fzo 13685 df-hash 14369 df-word 14553 df-concat 14610 df-s1 14636 df-s2 14887 df-s3 14888 df-wlks 29892 df-trls 29983 df-pths 30006 df-cycls 30079 |
| This theorem is referenced by: umgr2cycllem 35567 |
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