Users' Mathboxes Mathbox for Alexander van der Vekens < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  ushggricedg Structured version   Visualization version   GIF version

Theorem ushggricedg 48857
Description: A simple hypergraph (with arbitrarily indexed edges) is isomorphic to a graph with the same vertices and the same edges, indexed by the edges themselves. (Contributed by AV, 11-Nov-2022.)
Hypotheses
Ref Expression
ushggricedg.v 𝑉 = (Vtx‘𝐺)
ushggricedg.e 𝐸 = (Edg‘𝐺)
ushggricedg.s 𝐻 = ⟨𝑉, ( I ↾ 𝐸)⟩
Assertion
Ref Expression
ushggricedg (𝐺 ∈ USHGraph → 𝐺𝑔𝑟 𝐻)

Proof of Theorem ushggricedg
Dummy variables 𝑓 𝑔 𝑖 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 ushggricedg.v . . . . . 6 𝑉 = (Vtx‘𝐺)
21fvexi 6894 . . . . 5 𝑉 ∈ V
32a1i 11 . . . 4 (𝐺 ∈ USHGraph → 𝑉 ∈ V)
43resiexd 7217 . . 3 (𝐺 ∈ USHGraph → ( I ↾ 𝑉) ∈ V)
5 f1oi 6858 . . . . . 6 ( I ↾ 𝑉):𝑉1-1-onto𝑉
65a1i 11 . . . . 5 (𝐺 ∈ USHGraph → ( I ↾ 𝑉):𝑉1-1-onto𝑉)
7 ushggricedg.s . . . . . . . 8 𝐻 = ⟨𝑉, ( I ↾ 𝐸)⟩
87fveq2i 6883 . . . . . . 7 (Vtx‘𝐻) = (Vtx‘⟨𝑉, ( I ↾ 𝐸)⟩)
9 ushggricedg.e . . . . . . . . . . 11 𝐸 = (Edg‘𝐺)
109fvexi 6894 . . . . . . . . . 10 𝐸 ∈ V
11 resiexg 7911 . . . . . . . . . 10 (𝐸 ∈ V → ( I ↾ 𝐸) ∈ V)
1210, 11ax-mp 5 . . . . . . . . 9 ( I ↾ 𝐸) ∈ V
132, 12pm3.2i 476 . . . . . . . 8 (𝑉 ∈ V ∧ ( I ↾ 𝐸) ∈ V)
14 opvtxfv 29490 . . . . . . . 8 ((𝑉 ∈ V ∧ ( I ↾ 𝐸) ∈ V) → (Vtx‘⟨𝑉, ( I ↾ 𝐸)⟩) = 𝑉)
1513, 14mp1i 14 . . . . . . 7 (𝐺 ∈ USHGraph → (Vtx‘⟨𝑉, ( I ↾ 𝐸)⟩) = 𝑉)
168, 15eqtrid 2807 . . . . . 6 (𝐺 ∈ USHGraph → (Vtx‘𝐻) = 𝑉)
1716f1oeq3d 6816 . . . . 5 (𝐺 ∈ USHGraph → (( I ↾ 𝑉):𝑉1-1-onto→(Vtx‘𝐻) ↔ ( I ↾ 𝑉):𝑉1-1-onto𝑉))
186, 17mpbird 260 . . . 4 (𝐺 ∈ USHGraph → ( I ↾ 𝑉):𝑉1-1-onto→(Vtx‘𝐻))
19 fvexd 6895 . . . . 5 (𝐺 ∈ USHGraph → (iEdg‘𝐺) ∈ V)
20 eqid 2760 . . . . . . . . 9 (iEdg‘𝐺) = (iEdg‘𝐺)
211, 20ushgrf 29549 . . . . . . . 8 (𝐺 ∈ USHGraph → (iEdg‘𝐺):dom (iEdg‘𝐺)–1-1→(𝒫 𝑉 ∖ {∅}))
22 f1f1orn 6831 . . . . . . . 8 ((iEdg‘𝐺):dom (iEdg‘𝐺)–1-1→(𝒫 𝑉 ∖ {∅}) → (iEdg‘𝐺):dom (iEdg‘𝐺)–1-1-onto→ran (iEdg‘𝐺))
2321, 22syl 18 . . . . . . 7 (𝐺 ∈ USHGraph → (iEdg‘𝐺):dom (iEdg‘𝐺)–1-1-onto→ran (iEdg‘𝐺))
247fveq2i 6883 . . . . . . . . . . 11 (iEdg‘𝐻) = (iEdg‘⟨𝑉, ( I ↾ 𝐸)⟩)
2510a1i 11 . . . . . . . . . . . . 13 (𝐺 ∈ USHGraph → 𝐸 ∈ V)
2625resiexd 7217 . . . . . . . . . . . 12 (𝐺 ∈ USHGraph → ( I ↾ 𝐸) ∈ V)
27 opiedgfv 29493 . . . . . . . . . . . 12 ((𝑉 ∈ V ∧ ( I ↾ 𝐸) ∈ V) → (iEdg‘⟨𝑉, ( I ↾ 𝐸)⟩) = ( I ↾ 𝐸))
282, 26, 27sylancr 599 . . . . . . . . . . 11 (𝐺 ∈ USHGraph → (iEdg‘⟨𝑉, ( I ↾ 𝐸)⟩) = ( I ↾ 𝐸))
2924, 28eqtrid 2807 . . . . . . . . . 10 (𝐺 ∈ USHGraph → (iEdg‘𝐻) = ( I ↾ 𝐸))
3029dmeqd 5890 . . . . . . . . 9 (𝐺 ∈ USHGraph → dom (iEdg‘𝐻) = dom ( I ↾ 𝐸))
31 dmresi 6049 . . . . . . . . . 10 dom ( I ↾ 𝐸) = 𝐸
329a1i 11 . . . . . . . . . . 11 (𝐺 ∈ USHGraph → 𝐸 = (Edg‘𝐺))
33 edgval 29535 . . . . . . . . . . 11 (Edg‘𝐺) = ran (iEdg‘𝐺)
3432, 33eqtrdi 2811 . . . . . . . . . 10 (𝐺 ∈ USHGraph → 𝐸 = ran (iEdg‘𝐺))
3531, 34eqtrid 2807 . . . . . . . . 9 (𝐺 ∈ USHGraph → dom ( I ↾ 𝐸) = ran (iEdg‘𝐺))
3630, 35eqtrd 2795 . . . . . . . 8 (𝐺 ∈ USHGraph → dom (iEdg‘𝐻) = ran (iEdg‘𝐺))
3736f1oeq3d 6816 . . . . . . 7 (𝐺 ∈ USHGraph → ((iEdg‘𝐺):dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ↔ (iEdg‘𝐺):dom (iEdg‘𝐺)–1-1-onto→ran (iEdg‘𝐺)))
3823, 37mpbird 260 . . . . . 6 (𝐺 ∈ USHGraph → (iEdg‘𝐺):dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻))
39 ushgruhgr 29555 . . . . . . . . . 10 (𝐺 ∈ USHGraph → 𝐺 ∈ UHGraph)
401, 20uhgrss 29550 . . . . . . . . . 10 ((𝐺 ∈ UHGraph ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → ((iEdg‘𝐺)‘𝑖) ⊆ 𝑉)
4139, 40sylan 592 . . . . . . . . 9 ((𝐺 ∈ USHGraph ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → ((iEdg‘𝐺)‘𝑖) ⊆ 𝑉)
42 resiima 6073 . . . . . . . . 9 (((iEdg‘𝐺)‘𝑖) ⊆ 𝑉 → (( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐺)‘𝑖))
4341, 42syl 18 . . . . . . . 8 ((𝐺 ∈ USHGraph ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → (( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐺)‘𝑖))
44 f1f 6773 . . . . . . . . . . . . 13 ((iEdg‘𝐺):dom (iEdg‘𝐺)–1-1→(𝒫 𝑉 ∖ {∅}) → (iEdg‘𝐺):dom (iEdg‘𝐺)⟶(𝒫 𝑉 ∖ {∅}))
4521, 44syl 18 . . . . . . . . . . . 12 (𝐺 ∈ USHGraph → (iEdg‘𝐺):dom (iEdg‘𝐺)⟶(𝒫 𝑉 ∖ {∅}))
4645ffund 6709 . . . . . . . . . . 11 (𝐺 ∈ USHGraph → Fun (iEdg‘𝐺))
47 fvelrn 7071 . . . . . . . . . . 11 ((Fun (iEdg‘𝐺) ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → ((iEdg‘𝐺)‘𝑖) ∈ ran (iEdg‘𝐺))
4846, 47sylan 592 . . . . . . . . . 10 ((𝐺 ∈ USHGraph ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → ((iEdg‘𝐺)‘𝑖) ∈ ran (iEdg‘𝐺))
499, 33eqtri 2783 . . . . . . . . . 10 𝐸 = ran (iEdg‘𝐺)
5048, 49eleqtrrdi 2871 . . . . . . . . 9 ((𝐺 ∈ USHGraph ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → ((iEdg‘𝐺)‘𝑖) ∈ 𝐸)
51 fvresi 7173 . . . . . . . . 9 (((iEdg‘𝐺)‘𝑖) ∈ 𝐸 → (( I ↾ 𝐸)‘((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐺)‘𝑖))
5250, 51syl 18 . . . . . . . 8 ((𝐺 ∈ USHGraph ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → (( I ↾ 𝐸)‘((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐺)‘𝑖))
5310a1i 11 . . . . . . . . . . . 12 ((𝐺 ∈ USHGraph ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → 𝐸 ∈ V)
5453resiexd 7217 . . . . . . . . . . 11 ((𝐺 ∈ USHGraph ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → ( I ↾ 𝐸) ∈ V)
552, 54, 27sylancr 599 . . . . . . . . . 10 ((𝐺 ∈ USHGraph ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → (iEdg‘⟨𝑉, ( I ↾ 𝐸)⟩) = ( I ↾ 𝐸))
5624, 55eqtr2id 2808 . . . . . . . . 9 ((𝐺 ∈ USHGraph ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → ( I ↾ 𝐸) = (iEdg‘𝐻))
5756fveq1d 6882 . . . . . . . 8 ((𝐺 ∈ USHGraph ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → (( I ↾ 𝐸)‘((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘((iEdg‘𝐺)‘𝑖)))
5843, 52, 573eqtr2d 2801 . . . . . . 7 ((𝐺 ∈ USHGraph ∧ 𝑖 ∈ dom (iEdg‘𝐺)) → (( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘((iEdg‘𝐺)‘𝑖)))
5958ralrimiva 3154 . . . . . 6 (𝐺 ∈ USHGraph → ∀𝑖 ∈ dom (iEdg‘𝐺)(( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘((iEdg‘𝐺)‘𝑖)))
6038, 59jca 521 . . . . 5 (𝐺 ∈ USHGraph → ((iEdg‘𝐺):dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘((iEdg‘𝐺)‘𝑖))))
61 f1oeq1 6807 . . . . . 6 (𝑔 = (iEdg‘𝐺) → (𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ↔ (iEdg‘𝐺):dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻)))
62 fveq1 6879 . . . . . . . . 9 (𝑔 = (iEdg‘𝐺) → (𝑔𝑖) = ((iEdg‘𝐺)‘𝑖))
6362fveq2d 6884 . . . . . . . 8 (𝑔 = (iEdg‘𝐺) → ((iEdg‘𝐻)‘(𝑔𝑖)) = ((iEdg‘𝐻)‘((iEdg‘𝐺)‘𝑖)))
6463eqeq2d 2771 . . . . . . 7 (𝑔 = (iEdg‘𝐺) → ((( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖)) ↔ (( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘((iEdg‘𝐺)‘𝑖))))
6564ralbidv 3185 . . . . . 6 (𝑔 = (iEdg‘𝐺) → (∀𝑖 ∈ dom (iEdg‘𝐺)(( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖)) ↔ ∀𝑖 ∈ dom (iEdg‘𝐺)(( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘((iEdg‘𝐺)‘𝑖))))
6661, 65anbi12d 644 . . . . 5 (𝑔 = (iEdg‘𝐺) → ((𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖))) ↔ ((iEdg‘𝐺):dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘((iEdg‘𝐺)‘𝑖)))))
6719, 60, 66spcedv 3552 . . . 4 (𝐺 ∈ USHGraph → ∃𝑔(𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖))))
6818, 67jca 521 . . 3 (𝐺 ∈ USHGraph → (( I ↾ 𝑉):𝑉1-1-onto→(Vtx‘𝐻) ∧ ∃𝑔(𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖)))))
69 f1oeq1 6807 . . . 4 (𝑓 = ( I ↾ 𝑉) → (𝑓:𝑉1-1-onto→(Vtx‘𝐻) ↔ ( I ↾ 𝑉):𝑉1-1-onto→(Vtx‘𝐻)))
70 imaeq1 6052 . . . . . . . 8 (𝑓 = ( I ↾ 𝑉) → (𝑓 “ ((iEdg‘𝐺)‘𝑖)) = (( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)))
7170eqeq1d 2762 . . . . . . 7 (𝑓 = ( I ↾ 𝑉) → ((𝑓 “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖)) ↔ (( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖))))
7271ralbidv 3185 . . . . . 6 (𝑓 = ( I ↾ 𝑉) → (∀𝑖 ∈ dom (iEdg‘𝐺)(𝑓 “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖)) ↔ ∀𝑖 ∈ dom (iEdg‘𝐺)(( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖))))
7372anbi2d 642 . . . . 5 (𝑓 = ( I ↾ 𝑉) → ((𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(𝑓 “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖))) ↔ (𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖)))))
7473exbidv 1954 . . . 4 (𝑓 = ( I ↾ 𝑉) → (∃𝑔(𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(𝑓 “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖))) ↔ ∃𝑔(𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖)))))
7569, 74anbi12d 644 . . 3 (𝑓 = ( I ↾ 𝑉) → ((𝑓:𝑉1-1-onto→(Vtx‘𝐻) ∧ ∃𝑔(𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(𝑓 “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖)))) ↔ (( I ↾ 𝑉):𝑉1-1-onto→(Vtx‘𝐻) ∧ ∃𝑔(𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(( I ↾ 𝑉) “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖))))))
764, 68, 75spcedv 3552 . 2 (𝐺 ∈ USHGraph → ∃𝑓(𝑓:𝑉1-1-onto→(Vtx‘𝐻) ∧ ∃𝑔(𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(𝑓 “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖)))))
77 opex 5439 . . . 4 𝑉, ( I ↾ 𝐸)⟩ ∈ V
787, 77eqeltri 2856 . . 3 𝐻 ∈ V
79 eqid 2760 . . . 4 (Vtx‘𝐻) = (Vtx‘𝐻)
80 eqid 2760 . . . 4 (iEdg‘𝐻) = (iEdg‘𝐻)
811, 79, 20, 80dfgric2 48845 . . 3 ((𝐺 ∈ USHGraph ∧ 𝐻 ∈ V) → (𝐺𝑔𝑟 𝐻 ↔ ∃𝑓(𝑓:𝑉1-1-onto→(Vtx‘𝐻) ∧ ∃𝑔(𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(𝑓 “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖))))))
8278, 81mpan2 704 . 2 (𝐺 ∈ USHGraph → (𝐺𝑔𝑟 𝐻 ↔ ∃𝑓(𝑓:𝑉1-1-onto→(Vtx‘𝐻) ∧ ∃𝑔(𝑔:dom (iEdg‘𝐺)–1-1-onto→dom (iEdg‘𝐻) ∧ ∀𝑖 ∈ dom (iEdg‘𝐺)(𝑓 “ ((iEdg‘𝐺)‘𝑖)) = ((iEdg‘𝐻)‘(𝑔𝑖))))))
8376, 82mpbird 260 1 (𝐺 ∈ USHGraph → 𝐺𝑔𝑟 𝐻)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wb 209  wa 401   = wceq 1570  wex 1812  wcel 2145  wral 3076  Vcvv 3450  cdif 3896  wss 3899  c0 4279  𝒫 cpw 4557  {csn 4584  cop 4590   class class class wbr 5103   I cid 5549  dom cdm 5655  ran crn 5656  cres 5657  cima 5658  Fun wfun 6528  wf 6530  1-1wf1 6531  1-1-ontowf1o 6533  cfv 6534  Vtxcvtx 29482  iEdgciedg 29483  Edgcedg 29533  UHGraphcuhgr 29542  USHGraphcushgr 29543  𝑔𝑟 cgric 48806
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 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2732  ax-rep 5232  ax-sep 5251  ax-nul 5263  ax-pow 5330  ax-pr 5398  ax-un 7738
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2564  df-eu 2594  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-ne 2956  df-ral 3077  df-rex 3087  df-reu 3366  df-rab 3413  df-v 3452  df-sbc 3740  df-csb 3848  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-iun 4953  df-br 5104  df-opab 5168  df-mpt 5187  df-id 5550  df-xp 5661  df-rel 5662  df-cnv 5663  df-co 5664  df-dm 5665  df-rn 5666  df-res 5667  df-ima 5668  df-suc 6364  df-iota 6490  df-fun 6536  df-fn 6537  df-f 6538  df-f1 6539  df-fo 6540  df-f1o 6541  df-fv 6542  df-ov 7418  df-oprab 7419  df-mpo 7420  df-1st 7988  df-2nd 7989  df-1o 8459  df-map 8832  df-vtx 29484  df-iedg 29485  df-edg 29534  df-uhgr 29544  df-ushgr 29545  df-grim 48808  df-gric 48811
This theorem is used by: (None)
  Copyright terms: Public domain W3C validator