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| Mirrors > Home > MPE Home > Th. List > disjxwwlkn | Structured version Visualization version GIF version | ||
| Description: Sets of walks (as words) extended by an edge are disjunct if each set contains extensions of distinct walks. (Contributed by Alexander van der Vekens, 21-Aug-2018.) (Revised by AV, 20-Apr-2021.) (Revised by AV, 26-Oct-2022.) |
| Ref | Expression |
|---|---|
| wwlksnextprop.x | ⊢ 𝑋 = ((𝑁 + 1) WWalksN 𝐺) |
| wwlksnextprop.e | ⊢ 𝐸 = (Edg‘𝐺) |
| wwlksnextprop.y | ⊢ 𝑌 = {𝑤 ∈ (𝑁 WWalksN 𝐺) ∣ (𝑤‘0) = 𝑃} |
| Ref | Expression |
|---|---|
| disjxwwlkn | ⊢ Disj 𝑦 ∈ 𝑌 {𝑥 ∈ 𝑋 ∣ ((𝑥 prefix 𝑀) = 𝑦 ∧ (𝑦‘0) = 𝑃 ∧ {(lastS‘𝑦), (lastS‘𝑥)} ∈ 𝐸)} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simp1 1154 | . . . . . 6 ⊢ (((𝑥 prefix 𝑀) = 𝑦 ∧ (𝑦‘0) = 𝑃 ∧ {(lastS‘𝑦), (lastS‘𝑥)} ∈ 𝐸) → (𝑥 prefix 𝑀) = 𝑦) | |
| 2 | 1 | a1i 11 | . . . . 5 ⊢ (𝑥 ∈ 𝑋 → (((𝑥 prefix 𝑀) = 𝑦 ∧ (𝑦‘0) = 𝑃 ∧ {(lastS‘𝑦), (lastS‘𝑥)} ∈ 𝐸) → (𝑥 prefix 𝑀) = 𝑦)) |
| 3 | 2 | ss2rabi 4031 | . . . 4 ⊢ {𝑥 ∈ 𝑋 ∣ ((𝑥 prefix 𝑀) = 𝑦 ∧ (𝑦‘0) = 𝑃 ∧ {(lastS‘𝑦), (lastS‘𝑥)} ∈ 𝐸)} ⊆ {𝑥 ∈ 𝑋 ∣ (𝑥 prefix 𝑀) = 𝑦} |
| 4 | wwlksnextprop.x | . . . . . 6 ⊢ 𝑋 = ((𝑁 + 1) WWalksN 𝐺) | |
| 5 | wwlkssswwlksn 30284 | . . . . . . 7 ⊢ ((𝑁 + 1) WWalksN 𝐺) ⊆ (WWalks‘𝐺) | |
| 6 | eqid 2765 | . . . . . . . 8 ⊢ (Vtx‘𝐺) = (Vtx‘𝐺) | |
| 7 | 6 | wwlkssswrd 30280 | . . . . . . 7 ⊢ (WWalks‘𝐺) ⊆ Word (Vtx‘𝐺) |
| 8 | 5, 7 | sstri 3947 | . . . . . 6 ⊢ ((𝑁 + 1) WWalksN 𝐺) ⊆ Word (Vtx‘𝐺) |
| 9 | 4, 8 | eqsstri 3984 | . . . . 5 ⊢ 𝑋 ⊆ Word (Vtx‘𝐺) |
| 10 | rabss2 4032 | . . . . 5 ⊢ (𝑋 ⊆ Word (Vtx‘𝐺) → {𝑥 ∈ 𝑋 ∣ (𝑥 prefix 𝑀) = 𝑦} ⊆ {𝑥 ∈ Word (Vtx‘𝐺) ∣ (𝑥 prefix 𝑀) = 𝑦}) | |
| 11 | 9, 10 | ax-mp 5 | . . . 4 ⊢ {𝑥 ∈ 𝑋 ∣ (𝑥 prefix 𝑀) = 𝑦} ⊆ {𝑥 ∈ Word (Vtx‘𝐺) ∣ (𝑥 prefix 𝑀) = 𝑦} |
| 12 | 3, 11 | sstri 3947 | . . 3 ⊢ {𝑥 ∈ 𝑋 ∣ ((𝑥 prefix 𝑀) = 𝑦 ∧ (𝑦‘0) = 𝑃 ∧ {(lastS‘𝑦), (lastS‘𝑥)} ∈ 𝐸)} ⊆ {𝑥 ∈ Word (Vtx‘𝐺) ∣ (𝑥 prefix 𝑀) = 𝑦} |
| 13 | 12 | rgenw 3085 | . 2 ⊢ ∀𝑦 ∈ 𝑌 {𝑥 ∈ 𝑋 ∣ ((𝑥 prefix 𝑀) = 𝑦 ∧ (𝑦‘0) = 𝑃 ∧ {(lastS‘𝑦), (lastS‘𝑥)} ∈ 𝐸)} ⊆ {𝑥 ∈ Word (Vtx‘𝐺) ∣ (𝑥 prefix 𝑀) = 𝑦} |
| 14 | disjwrdpfx 14761 | . 2 ⊢ Disj 𝑦 ∈ 𝑌 {𝑥 ∈ Word (Vtx‘𝐺) ∣ (𝑥 prefix 𝑀) = 𝑦} | |
| 15 | disjss2 5081 | . 2 ⊢ (∀𝑦 ∈ 𝑌 {𝑥 ∈ 𝑋 ∣ ((𝑥 prefix 𝑀) = 𝑦 ∧ (𝑦‘0) = 𝑃 ∧ {(lastS‘𝑦), (lastS‘𝑥)} ∈ 𝐸)} ⊆ {𝑥 ∈ Word (Vtx‘𝐺) ∣ (𝑥 prefix 𝑀) = 𝑦} → (Disj 𝑦 ∈ 𝑌 {𝑥 ∈ Word (Vtx‘𝐺) ∣ (𝑥 prefix 𝑀) = 𝑦} → Disj 𝑦 ∈ 𝑌 {𝑥 ∈ 𝑋 ∣ ((𝑥 prefix 𝑀) = 𝑦 ∧ (𝑦‘0) = 𝑃 ∧ {(lastS‘𝑦), (lastS‘𝑥)} ∈ 𝐸)})) | |
| 16 | 13, 14, 15 | mp2 9 | 1 ⊢ Disj 𝑦 ∈ 𝑌 {𝑥 ∈ 𝑋 ∣ ((𝑥 prefix 𝑀) = 𝑦 ∧ (𝑦‘0) = 𝑃 ∧ {(lastS‘𝑦), (lastS‘𝑥)} ∈ 𝐸)} |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ w3a 1103 = wceq 1570 ∈ wcel 2146 ∀wral 3081 {crab 3418 ⊆ wss 3906 {cpr 4593 Disj wdisj 5078 ‘cfv 6540 (class class class)co 7419 0cc0 11117 1c1 11118 + caddc 11120 Word cword 14570 lastSclsw 14619 prefix cpfx 14732 Vtxcvtx 29403 Edgcedg 29454 WWalkscwwlks 30243 WWalksN cwwlksn 30244 |
| 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 7742 ax-cnex 11173 ax-resscn 11174 ax-1cn 11175 ax-icn 11176 ax-addcl 11177 ax-addrcl 11178 ax-mulcl 11179 ax-mulrcl 11180 ax-mulcom 11181 ax-addass 11182 ax-mulass 11183 ax-distr 11184 ax-i2m1 11185 ax-1ne0 11186 ax-1rid 11187 ax-rnegex 11188 ax-rrecex 11189 ax-cnre 11190 ax-pre-lttri 11191 ax-pre-lttrn 11192 ax-pre-ltadd 11193 ax-pre-mulgt0 11194 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 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-rmo 3371 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-op 4598 df-uni 4875 df-int 4915 df-iun 4960 df-disj 5079 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 7376 df-ov 7422 df-oprab 7423 df-mpo 7424 df-om 7869 df-1st 7992 df-2nd 7993 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-1o 8459 df-er 8700 df-map 8832 df-en 8950 df-dom 8951 df-sdom 8952 df-fin 8953 df-card 9941 df-pnf 11262 df-mnf 11263 df-xr 11264 df-ltxr 11265 df-le 11266 df-sub 11460 df-neg 11461 df-nn 12251 df-n0 12522 df-z 12609 df-uz 12881 df-fz 13554 df-fzo 13702 df-hash 14387 df-word 14571 df-wwlks 30248 df-wwlksn 30249 |
| This theorem is used by: hashwwlksnext 30332 |
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