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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 1135 | . . . . . 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 4020 | . . . 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 28339 | . . . . . . 7 ⊢ ((𝑁 + 1) WWalksN 𝐺) ⊆ (WWalks‘𝐺) | |
6 | eqid 2737 | . . . . . . . 8 ⊢ (Vtx‘𝐺) = (Vtx‘𝐺) | |
7 | 6 | wwlkssswrd 28335 | . . . . . . 7 ⊢ (WWalks‘𝐺) ⊆ Word (Vtx‘𝐺) |
8 | 5, 7 | sstri 3939 | . . . . . 6 ⊢ ((𝑁 + 1) WWalksN 𝐺) ⊆ Word (Vtx‘𝐺) |
9 | 4, 8 | eqsstri 3964 | . . . . 5 ⊢ 𝑋 ⊆ Word (Vtx‘𝐺) |
10 | rabss2 4021 | . . . . 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 3939 | . . 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 3066 | . 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 14482 | . 2 ⊢ Disj 𝑦 ∈ 𝑌 {𝑥 ∈ Word (Vtx‘𝐺) ∣ (𝑥 prefix 𝑀) = 𝑦} | |
15 | disjss2 5053 | . 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 |
Syntax hints: → wi 4 ∧ w3a 1086 = wceq 1540 ∈ wcel 2105 ∀wral 3062 {crab 3404 ⊆ wss 3896 {cpr 4571 Disj wdisj 5050 ‘cfv 6463 (class class class)co 7313 0cc0 10941 1c1 10942 + caddc 10944 Word cword 14286 lastSclsw 14334 prefix cpfx 14452 Vtxcvtx 27474 Edgcedg 27525 WWalkscwwlks 28298 WWalksN cwwlksn 28299 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2708 ax-rep 5222 ax-sep 5236 ax-nul 5243 ax-pow 5301 ax-pr 5365 ax-un 7626 ax-cnex 10997 ax-resscn 10998 ax-1cn 10999 ax-icn 11000 ax-addcl 11001 ax-addrcl 11002 ax-mulcl 11003 ax-mulrcl 11004 ax-mulcom 11005 ax-addass 11006 ax-mulass 11007 ax-distr 11008 ax-i2m1 11009 ax-1ne0 11010 ax-1rid 11011 ax-rnegex 11012 ax-rrecex 11013 ax-cnre 11014 ax-pre-lttri 11015 ax-pre-lttrn 11016 ax-pre-ltadd 11017 ax-pre-mulgt0 11018 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2815 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3350 df-reu 3351 df-rab 3405 df-v 3443 df-sbc 3726 df-csb 3842 df-dif 3899 df-un 3901 df-in 3903 df-ss 3913 df-pss 3915 df-nul 4267 df-if 4470 df-pw 4545 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4849 df-int 4891 df-iun 4937 df-disj 5051 df-br 5086 df-opab 5148 df-mpt 5169 df-tr 5203 df-id 5505 df-eprel 5511 df-po 5519 df-so 5520 df-fr 5560 df-we 5562 df-xp 5611 df-rel 5612 df-cnv 5613 df-co 5614 df-dm 5615 df-rn 5616 df-res 5617 df-ima 5618 df-pred 6222 df-ord 6289 df-on 6290 df-lim 6291 df-suc 6292 df-iota 6415 df-fun 6465 df-fn 6466 df-f 6467 df-f1 6468 df-fo 6469 df-f1o 6470 df-fv 6471 df-riota 7270 df-ov 7316 df-oprab 7317 df-mpo 7318 df-om 7756 df-1st 7874 df-2nd 7875 df-frecs 8142 df-wrecs 8173 df-recs 8247 df-rdg 8286 df-1o 8342 df-er 8544 df-map 8663 df-en 8780 df-dom 8781 df-sdom 8782 df-fin 8783 df-card 9765 df-pnf 11081 df-mnf 11082 df-xr 11083 df-ltxr 11084 df-le 11085 df-sub 11277 df-neg 11278 df-nn 12044 df-n0 12304 df-z 12390 df-uz 12653 df-fz 13310 df-fzo 13453 df-hash 14115 df-word 14287 df-wwlks 28303 df-wwlksn 28304 |
This theorem is referenced by: hashwwlksnext 28387 |
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