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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 4700 | . . . . 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 35525 | 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 4593 class class class wbr 5110 ‘cfv 6533 〈“cs2 14874 〈“cs3 14875 Vtxcvtx 29283 iEdgciedg 29284 Cyclesccycls 30071 |
| 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 5239 ax-sep 5258 ax-nul 5268 ax-pow 5334 ax-pr 5402 ax-un 7730 ax-cnex 11152 ax-resscn 11153 ax-1cn 11154 ax-icn 11155 ax-addcl 11156 ax-addrcl 11157 ax-mulcl 11158 ax-mulrcl 11159 ax-mulcom 11160 ax-addass 11161 ax-mulass 11162 ax-distr 11163 ax-i2m1 11164 ax-1ne0 11165 ax-1rid 11166 ax-rnegex 11167 ax-rrecex 11168 ax-cnre 11169 ax-pre-lttri 11170 ax-pre-lttrn 11171 ax-pre-ltadd 11172 ax-pre-mulgt0 11173 |
| 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 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-tp 4596 df-op 4598 df-uni 4874 df-int 4914 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7365 df-ov 7411 df-oprab 7412 df-mpo 7413 df-om 7859 df-1st 7982 df-2nd 7983 df-frecs 8274 df-wrecs 8305 df-recs 8354 df-rdg 8393 df-1o 8449 df-er 8690 df-map 8822 df-en 8940 df-dom 8941 df-sdom 8942 df-fin 8943 df-card 9921 df-pnf 11241 df-mnf 11242 df-xr 11243 df-ltxr 11244 df-le 11245 df-sub 11439 df-neg 11440 df-nn 12230 df-2 12299 df-3 12300 df-n0 12501 df-z 12588 df-uz 12859 df-fz 13532 df-fzo 13679 df-hash 14363 df-word 14547 df-concat 14604 df-s1 14630 df-s2 14881 df-s3 14882 df-wlks 29886 df-trls 29977 df-pths 30000 df-cycls 30073 |
| This theorem is referenced by: umgr2cycllem 35527 |
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