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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 488 | . . . 4 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) → 𝐴 ∈ 𝑉) | |
| 5 | 3, 4 | jccir 531 | . . 3 ⊢ (𝜑 → ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑉) ∧ 𝐴 ∈ 𝑉)) |
| 6 | df-3an 1105 | . . 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 3015 | . . 3 ⊢ (𝜑 → 𝐵 ≠ 𝐴) |
| 10 | 8, 9 | jca 521 | . 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 3966 | . . . 4 ⊢ ({𝐴, 𝐵} ⊆ (𝐼‘𝐾) ↔ {𝐵, 𝐴} ⊆ (𝐼‘𝐾)) |
| 14 | 13 | anbi2i 635 | . . 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 2766 | . 2 ⊢ (𝜑 → 𝐴 = 𝐴) | |
| 20 | 1, 2, 7, 10, 15, 16, 17, 18, 19 | 2cycld 35643 | 1 ⊢ (𝜑 → 𝐹(Cycles‘𝐺)𝑃) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1570 ∈ wcel 2146 ≠ wne 2960 ⊆ wss 3906 {cpr 4593 class class class wbr 5111 ‘cfv 6540 〈“cs2 14897 〈“cs3 14898 Vtxcvtx 29375 iEdgciedg 29376 Cyclesccycls 30163 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7738 ax-cnex 11167 ax-resscn 11168 ax-1cn 11169 ax-icn 11170 ax-addcl 11171 ax-addrcl 11172 ax-mulcl 11173 ax-mulrcl 11174 ax-mulcom 11175 ax-addass 11176 ax-mulass 11177 ax-distr 11178 ax-i2m1 11179 ax-1ne0 11180 ax-1rid 11181 ax-rnegex 11182 ax-rrecex 11183 ax-cnre 11184 ax-pre-lttri 11185 ax-pre-lttrn 11186 ax-pre-ltadd 11187 ax-pre-mulgt0 11188 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-ifp 1079 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-tp 4596 df-op 4598 df-uni 4875 df-int 4915 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 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 9937 df-pnf 11256 df-mnf 11257 df-xr 11258 df-ltxr 11259 df-le 11260 df-sub 11454 df-neg 11455 df-nn 12245 df-2 12314 df-3 12315 df-n0 12516 df-z 12603 df-uz 12874 df-fz 13547 df-fzo 13695 df-hash 14380 df-word 14564 df-concat 14621 df-s1 14648 df-s2 14904 df-s3 14905 df-wlks 29978 df-trls 30069 df-pths 30092 df-cycls 30165 |
| This theorem is used by: umgr2cycllem 35645 |
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