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Mirrors  >  Home  >  MPE Home  >  Th. List  >  uhgrwkspth Structured version   Visualization version   GIF version
Theorem uhgrwkspth 29001
Description: Any walk of length 1 between two different vertices is a simple path. (Contributed by AV, 25-Jan-2021.) (Proof shortened by AV, 31-Oct-2021.) (Revised by AV, 7-Jul-2022.)
Assertion
Ref Expression
uhgrwkspth ((𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡) β†’ (𝐹(𝐴(WalksOnβ€˜πΊ)𝐡)𝑃 ↔ 𝐹(𝐴(SPathsOnβ€˜πΊ)𝐡)𝑃))
Proof of Theorem uhgrwkspth
StepHypRef Expression
1 simpl31 1254 . . . . . . . 8 ((((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) ∧ (𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡)) β†’ 𝐹(Walksβ€˜πΊ)𝑃)
2 uhgrwkspthlem1 28999 . . . . . . . . . . . . . 14 ((𝐹(Walksβ€˜πΊ)𝑃 ∧ (β™―β€˜πΉ) = 1) β†’ Fun ◑𝐹)
32expcom 414 . . . . . . . . . . . . 13 ((β™―β€˜πΉ) = 1 β†’ (𝐹(Walksβ€˜πΊ)𝑃 β†’ Fun ◑𝐹))
433ad2ant2 1134 . . . . . . . . . . . 12 ((𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡) β†’ (𝐹(Walksβ€˜πΊ)𝑃 β†’ Fun ◑𝐹))
54com12 32 . . . . . . . . . . 11 (𝐹(Walksβ€˜πΊ)𝑃 β†’ ((𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡) β†’ Fun ◑𝐹))
653ad2ant1 1133 . . . . . . . . . 10 ((𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡) β†’ ((𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡) β†’ Fun ◑𝐹))
763ad2ant3 1135 . . . . . . . . 9 (((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) β†’ ((𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡) β†’ Fun ◑𝐹))
87imp 407 . . . . . . . 8 ((((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) ∧ (𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡)) β†’ Fun ◑𝐹)
9 istrl 28942 . . . . . . . 8 (𝐹(Trailsβ€˜πΊ)𝑃 ↔ (𝐹(Walksβ€˜πΊ)𝑃 ∧ Fun ◑𝐹))
101, 8, 9sylanbrc 583 . . . . . . 7 ((((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) ∧ (𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡)) β†’ 𝐹(Trailsβ€˜πΊ)𝑃)
11 3simpc 1150 . . . . . . . . 9 ((𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡) β†’ ((β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡))
1211adantl 482 . . . . . . . 8 ((((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) ∧ (𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡)) β†’ ((β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡))
13 3simpc 1150 . . . . . . . . . 10 ((𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡) β†’ ((π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡))
14133ad2ant3 1135 . . . . . . . . 9 (((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) β†’ ((π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡))
1514adantr 481 . . . . . . . 8 ((((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) ∧ (𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡)) β†’ ((π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡))
16 uhgrwkspthlem2 29000 . . . . . . . 8 ((𝐹(Walksβ€˜πΊ)𝑃 ∧ ((β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡) ∧ ((π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) β†’ Fun ◑𝑃)
171, 12, 15, 16syl3anc 1371 . . . . . . 7 ((((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) ∧ (𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡)) β†’ Fun ◑𝑃)
18 isspth 28970 . . . . . . 7 (𝐹(SPathsβ€˜πΊ)𝑃 ↔ (𝐹(Trailsβ€˜πΊ)𝑃 ∧ Fun ◑𝑃))
1910, 17, 18sylanbrc 583 . . . . . 6 ((((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) ∧ (𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡)) β†’ 𝐹(SPathsβ€˜πΊ)𝑃)
20 3anass 1095 . . . . . 6 ((𝐹(SPathsβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡) ↔ (𝐹(SPathsβ€˜πΊ)𝑃 ∧ ((π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)))
2119, 15, 20sylanbrc 583 . . . . 5 ((((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) ∧ (𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡)) β†’ (𝐹(SPathsβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡))
22 3simpa 1148 . . . . . . 7 (((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) β†’ ((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V)))
2322adantr 481 . . . . . 6 ((((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) ∧ (𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡)) β†’ ((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V)))
24 eqid 2732 . . . . . . 7 (Vtxβ€˜πΊ) = (Vtxβ€˜πΊ)
2524isspthonpth 28995 . . . . . 6 (((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V)) β†’ (𝐹(𝐴(SPathsOnβ€˜πΊ)𝐡)𝑃 ↔ (𝐹(SPathsβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)))
2623, 25syl 17 . . . . 5 ((((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) ∧ (𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡)) β†’ (𝐹(𝐴(SPathsOnβ€˜πΊ)𝐡)𝑃 ↔ (𝐹(SPathsβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)))
2721, 26mpbird 256 . . . 4 ((((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) ∧ (𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡)) β†’ 𝐹(𝐴(SPathsOnβ€˜πΊ)𝐡)𝑃)
2827ex 413 . . 3 (((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) β†’ ((𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡) β†’ 𝐹(𝐴(SPathsOnβ€˜πΊ)𝐡)𝑃))
2924wlkonprop 28904 . . . 4 (𝐹(𝐴(WalksOnβ€˜πΊ)𝐡)𝑃 β†’ ((𝐺 ∈ V ∧ 𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)))
30 3simpc 1150 . . . . 5 ((𝐺 ∈ V ∧ 𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) β†’ (𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)))
31303anim1i 1152 . . . 4 (((𝐺 ∈ V ∧ 𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)) β†’ ((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)))
3229, 31syl 17 . . 3 (𝐹(𝐴(WalksOnβ€˜πΊ)𝐡)𝑃 β†’ ((𝐴 ∈ (Vtxβ€˜πΊ) ∧ 𝐡 ∈ (Vtxβ€˜πΊ)) ∧ (𝐹 ∈ V ∧ 𝑃 ∈ V) ∧ (𝐹(Walksβ€˜πΊ)𝑃 ∧ (π‘ƒβ€˜0) = 𝐴 ∧ (π‘ƒβ€˜(β™―β€˜πΉ)) = 𝐡)))
3328, 32syl11 33 . 2 ((𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡) β†’ (𝐹(𝐴(WalksOnβ€˜πΊ)𝐡)𝑃 β†’ 𝐹(𝐴(SPathsOnβ€˜πΊ)𝐡)𝑃))
34 spthonpthon 28997 . . 3 (𝐹(𝐴(SPathsOnβ€˜πΊ)𝐡)𝑃 β†’ 𝐹(𝐴(PathsOnβ€˜πΊ)𝐡)𝑃)
35 pthontrlon 28993 . . 3 (𝐹(𝐴(PathsOnβ€˜πΊ)𝐡)𝑃 β†’ 𝐹(𝐴(TrailsOnβ€˜πΊ)𝐡)𝑃)
36 trlsonwlkon 28956 . . 3 (𝐹(𝐴(TrailsOnβ€˜πΊ)𝐡)𝑃 β†’ 𝐹(𝐴(WalksOnβ€˜πΊ)𝐡)𝑃)
3734, 35, 363syl 18 . 2 (𝐹(𝐴(SPathsOnβ€˜πΊ)𝐡)𝑃 β†’ 𝐹(𝐴(WalksOnβ€˜πΊ)𝐡)𝑃)
3833, 37impbid1 224 1 ((𝐺 ∈ π‘Š ∧ (β™―β€˜πΉ) = 1 ∧ 𝐴 β‰  𝐡) β†’ (𝐹(𝐴(WalksOnβ€˜πΊ)𝐡)𝑃 ↔ 𝐹(𝐴(SPathsOnβ€˜πΊ)𝐡)𝑃))
Colors of variables: wff setvar class
Syntax hints:   β†’ wi 4   ↔ wb 205   ∧ wa 396   ∧ w3a 1087   = wceq 1541   ∈ wcel 2106   β‰  wne 2940  Vcvv 3474   class class class wbr 5147  β—‘ccnv 5674  Fun wfun 6534  β€˜cfv 6540  (class class class)co 7405  0cc0 11106  1c1 11107  β™―chash 14286  Vtxcvtx 28245  Walkscwlks 28842  WalksOncwlkson 28843  Trailsctrls 28936  TrailsOnctrlson 28937  SPathscspths 28959  PathsOncpthson 28960  SPathsOncspthson 28961
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2703  ax-rep 5284  ax-sep 5298  ax-nul 5305  ax-pow 5362  ax-pr 5426  ax-un 7721  ax-cnex 11162  ax-resscn 11163  ax-1cn 11164  ax-icn 11165  ax-addcl 11166  ax-addrcl 11167  ax-mulcl 11168  ax-mulrcl 11169  ax-mulcom 11170  ax-addass 11171  ax-mulass 11172  ax-distr 11173  ax-i2m1 11174  ax-1ne0 11175  ax-1rid 11176  ax-rnegex 11177  ax-rrecex 11178  ax-cnre 11179  ax-pre-lttri 11180  ax-pre-lttrn 11181  ax-pre-ltadd 11182  ax-pre-mulgt0 11183
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 846  df-ifp 1062  df-3or 1088  df-3an 1089  df-tru 1544  df-fal 1554  df-ex 1782  df-nf 1786  df-sb 2068  df-mo 2534  df-eu 2563  df-clab 2710  df-cleq 2724  df-clel 2810  df-nfc 2885  df-ne 2941  df-nel 3047  df-ral 3062  df-rex 3071  df-reu 3377  df-rab 3433  df-v 3476  df-sbc 3777  df-csb 3893  df-dif 3950  df-un 3952  df-in 3954  df-ss 3964  df-pss 3966  df-nul 4322  df-if 4528  df-pw 4603  df-sn 4628  df-pr 4630  df-op 4634  df-uni 4908  df-int 4950  df-iun 4998  df-br 5148  df-opab 5210  df-mpt 5231  df-tr 5265  df-id 5573  df-eprel 5579  df-po 5587  df-so 5588  df-fr 5630  df-we 5632  df-xp 5681  df-rel 5682  df-cnv 5683  df-co 5684  df-dm 5685  df-rn 5686  df-res 5687  df-ima 5688  df-pred 6297  df-ord 6364  df-on 6365  df-lim 6366  df-suc 6367  df-iota 6492  df-fun 6542  df-fn 6543  df-f 6544  df-f1 6545  df-fo 6546  df-f1o 6547  df-fv 6548  df-riota 7361  df-ov 7408  df-oprab 7409  df-mpo 7410  df-om 7852  df-1st 7971  df-2nd 7972  df-frecs 8262  df-wrecs 8293  df-recs 8367  df-rdg 8406  df-1o 8462  df-er 8699  df-map 8818  df-en 8936  df-dom 8937  df-sdom 8938  df-fin 8939  df-card 9930  df-pnf 11246  df-mnf 11247  df-xr 11248  df-ltxr 11249  df-le 11250  df-sub 11442  df-neg 11443  df-nn 12209  df-n0 12469  df-z 12555  df-uz 12819  df-fz 13481  df-fzo 13624  df-hash 14287  df-word 14461  df-concat 14517  df-s1 14542  df-s2 14795  df-wlks 28845  df-wlkson 28846  df-trls 28938  df-trlson 28939  df-pths 28962  df-spths 28963  df-pthson 28964  df-spthson 28965
This theorem is referenced by: (None)
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