usgrexmpl2nb3 - Mathbox for Alexander van der Vekens

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Theorem usgrexmpl2nb3 48958

Description: The neighborhood of the forth vertex of graph 𝐺. (Contributed by AV, 9-Aug-2025.)

**Hypotheses**
Ref	Expression
usgrexmpl2.v	⊢ 𝑉 = (0...5)
usgrexmpl2.e	⊢ 𝐸 = ⟨“{0, 1} {1, 2} {2, 3} {3, 4} {4, 5} {0, 3} {0, 5}”⟩
usgrexmpl2.g	⊢ 𝐺 = ⟨𝑉, 𝐸⟩

**Assertion**
Ref	Expression
usgrexmpl2nb3	⊢ (𝐺 NeighbVtx 3) = {0, 2, 4}

Proof of Theorem usgrexmpl2nb3 Dummy variable 𝑛 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		3ex 12351	. . . . . 6 ⊢ 3 ∈ V
2	1	tpid1 4732	. . . . 5 ⊢ 3 ∈ {3, 4, 5}
3	2	olci 880	. . . 4 ⊢ (3 ∈ {0, 1, 2} ∨ 3 ∈ {3, 4, 5})
4		elun 4103	. . . 4 ⊢ (3 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ↔ (3 ∈ {0, 1, 2} ∨ 3 ∈ {3, 4, 5}))
5	3, 4	mpbir 234	. . 3 ⊢ 3 ∈ ({0, 1, 2} ∪ {3, 4, 5})
6		usgrexmpl2.v	. . . 4 ⊢ 𝑉 = (0...5)
7		usgrexmpl2.e	. . . 4 ⊢ 𝐸 = ⟨“{0, 1} {1, 2} {2, 3} {3, 4} {4, 5} {0, 3} {0, 5}”⟩
8		usgrexmpl2.g	. . . 4 ⊢ 𝐺 = ⟨𝑉, 𝐸⟩
9	6, 7, 8	usgrexmpl2nblem 48954	. . 3 ⊢ (3 ∈ ({0, 1, 2} ∪ {3, 4, 5}) → (𝐺 NeighbVtx 3) = {𝑛 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ∣ {3, 𝑛} ∈ ({{0, 3}} ∪ ({{0, 1}, {1, 2}, {2, 3}} ∪ {{3, 4}, {4, 5}, {0, 5}}))})
10	5, 9	ax-mp 5	. 2 ⊢ (𝐺 NeighbVtx 3) = {𝑛 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ∣ {3, 𝑛} ∈ ({{0, 3}} ∪ ({{0, 1}, {1, 2}, {2, 3}} ∪ {{3, 4}, {4, 5}, {0, 5}}))}
11		c0ex 11228	. . . . . 6 ⊢ 0 ∈ V
12	11	tpid1 4732	. . . . 5 ⊢ 0 ∈ {0, 1, 2}
13	12	orci 879	. . . 4 ⊢ (0 ∈ {0, 1, 2} ∨ 0 ∈ {3, 4, 5})
14		elun 4103	. . . 4 ⊢ (0 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ↔ (0 ∈ {0, 1, 2} ∨ 0 ∈ {3, 4, 5}))
15	13, 14	mpbir 234	. . 3 ⊢ 0 ∈ ({0, 1, 2} ∪ {3, 4, 5})
16		2ex 12346	. . . . . 6 ⊢ 2 ∈ V
17	16	tpid3 4737	. . . . 5 ⊢ 2 ∈ {0, 1, 2}
18	17	orci 879	. . . 4 ⊢ (2 ∈ {0, 1, 2} ∨ 2 ∈ {3, 4, 5})
19		elun 4103	. . . 4 ⊢ (2 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ↔ (2 ∈ {0, 1, 2} ∨ 2 ∈ {3, 4, 5}))
20	18, 19	mpbir 234	. . 3 ⊢ 2 ∈ ({0, 1, 2} ∪ {3, 4, 5})
21		4nn0 12551	. . . . . . 7 ⊢ 4 ∈ ℕ₀
22	21	elexi 3475	. . . . . 6 ⊢ 4 ∈ V
23	22	tpid2 4734	. . . . 5 ⊢ 4 ∈ {3, 4, 5}
24	23	olci 880	. . . 4 ⊢ (4 ∈ {0, 1, 2} ∨ 4 ∈ {3, 4, 5})
25		elun 4103	. . . 4 ⊢ (4 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ↔ (4 ∈ {0, 1, 2} ∨ 4 ∈ {3, 4, 5}))
26	24, 25	mpbir 234	. . 3 ⊢ 4 ∈ ({0, 1, 2} ∪ {3, 4, 5})
27		tpssi 4801	. . . 4 ⊢ ((0 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ∧ 2 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ∧ 4 ∈ ({0, 1, 2} ∪ {3, 4, 5})) → {0, 2, 4} ⊆ ({0, 1, 2} ∪ {3, 4, 5}))
28		3orass 1106	. . . . . 6 ⊢ ((𝑛 = 0 ∨ 𝑛 = 2 ∨ 𝑛 = 4) ↔ (𝑛 = 0 ∨ (𝑛 = 2 ∨ 𝑛 = 4)))
29		vex 3457	. . . . . . 7 ⊢ 𝑛 ∈ V
30	29	eltp 4653	. . . . . 6 ⊢ (𝑛 ∈ {0, 2, 4} ↔ (𝑛 = 0 ∨ 𝑛 = 2 ∨ 𝑛 = 4))
31		prex 5407	. . . . . . . 8 ⊢ {3, 𝑛} ∈ V
32		el7g 4654	. . . . . . . 8 ⊢ ({3, 𝑛} ∈ V → ({3, 𝑛} ∈ ({{0, 3}} ∪ ({{0, 1}, {1, 2}, {2, 3}} ∪ {{3, 4}, {4, 5}, {0, 5}})) ↔ ({3, 𝑛} = {0, 3} ∨ (({3, 𝑛} = {0, 1} ∨ {3, 𝑛} = {1, 2} ∨ {3, 𝑛} = {2, 3}) ∨ ({3, 𝑛} = {3, 4} ∨ {3, 𝑛} = {4, 5} ∨ {3, 𝑛} = {0, 5})))))
33	31, 32	ax-mp 5	. . . . . . 7 ⊢ ({3, 𝑛} ∈ ({{0, 3}} ∪ ({{0, 1}, {1, 2}, {2, 3}} ∪ {{3, 4}, {4, 5}, {0, 5}})) ↔ ({3, 𝑛} = {0, 3} ∨ (({3, 𝑛} = {0, 1} ∨ {3, 𝑛} = {1, 2} ∨ {3, 𝑛} = {2, 3}) ∨ ({3, 𝑛} = {3, 4} ∨ {3, 𝑛} = {4, 5} ∨ {3, 𝑛} = {0, 5}))))
34		prcom 4696	. . . . . . . . . 10 ⊢ {0, 3} = {3, 0}
35	34	eqeq2i 2775	. . . . . . . . 9 ⊢ ({3, 𝑛} = {0, 3} ↔ {3, 𝑛} = {3, 0})
36	29	a1i 11	. . . . . . . . . . 11 ⊢ (0 ∈ V → 𝑛 ∈ V)
37		elex 3474	. . . . . . . . . . 11 ⊢ (0 ∈ V → 0 ∈ V)
38	36, 37	preq2b 4810	. . . . . . . . . 10 ⊢ (0 ∈ V → ({3, 𝑛} = {3, 0} ↔ 𝑛 = 0))
39	11, 38	ax-mp 5	. . . . . . . . 9 ⊢ ({3, 𝑛} = {3, 0} ↔ 𝑛 = 0)
40	35, 39	bitri 278	. . . . . . . 8 ⊢ ({3, 𝑛} = {0, 3} ↔ 𝑛 = 0)
41		3orrot 1108	. . . . . . . . . 10 ⊢ (({3, 𝑛} = {0, 1} ∨ {3, 𝑛} = {1, 2} ∨ {3, 𝑛} = {2, 3}) ↔ ({3, 𝑛} = {1, 2} ∨ {3, 𝑛} = {2, 3} ∨ {3, 𝑛} = {0, 1}))
42	1, 29	pm3.2i 476	. . . . . . . . . . . . . . 15 ⊢ (3 ∈ V ∧ 𝑛 ∈ V)
43		1re 11236	. . . . . . . . . . . . . . . 16 ⊢ 1 ∈ ℝ
44	43, 16	pm3.2i 476	. . . . . . . . . . . . . . 15 ⊢ (1 ∈ ℝ ∧ 2 ∈ V)
45	42, 44	pm3.2i 476	. . . . . . . . . . . . . 14 ⊢ ((3 ∈ V ∧ 𝑛 ∈ V) ∧ (1 ∈ ℝ ∧ 2 ∈ V))
46		1lt3 12444	. . . . . . . . . . . . . . . . 17 ⊢ 1 < 3
47	43, 46	gtneii 11350	. . . . . . . . . . . . . . . 16 ⊢ 3 ≠ 1
48		2re 12343	. . . . . . . . . . . . . . . . 17 ⊢ 2 ∈ ℝ
49		2lt3 12442	. . . . . . . . . . . . . . . . 17 ⊢ 2 < 3
50	48, 49	gtneii 11350	. . . . . . . . . . . . . . . 16 ⊢ 3 ≠ 2
51	47, 50	pm3.2i 476	. . . . . . . . . . . . . . 15 ⊢ (3 ≠ 1 ∧ 3 ≠ 2)
52	51	orci 879	. . . . . . . . . . . . . 14 ⊢ ((3 ≠ 1 ∧ 3 ≠ 2) ∨ (𝑛 ≠ 1 ∧ 𝑛 ≠ 2))
53		prneimg 4817	. . . . . . . . . . . . . 14 ⊢ (((3 ∈ V ∧ 𝑛 ∈ V) ∧ (1 ∈ ℝ ∧ 2 ∈ V)) → (((3 ≠ 1 ∧ 3 ≠ 2) ∨ (𝑛 ≠ 1 ∧ 𝑛 ≠ 2)) → {3, 𝑛} ≠ {1, 2}))
54	45, 52, 53	mp2 9	. . . . . . . . . . . . 13 ⊢ {3, 𝑛} ≠ {1, 2}
55	54	neii 2959	. . . . . . . . . . . 12 ⊢ ¬ {3, 𝑛} = {1, 2}
56		id 23	. . . . . . . . . . . . 13 ⊢ (¬ {3, 𝑛} = {1, 2} → ¬ {3, 𝑛} = {1, 2})
57	11, 43	pm3.2i 476	. . . . . . . . . . . . . . . . 17 ⊢ (0 ∈ V ∧ 1 ∈ ℝ)
58	42, 57	pm3.2i 476	. . . . . . . . . . . . . . . 16 ⊢ ((3 ∈ V ∧ 𝑛 ∈ V) ∧ (0 ∈ V ∧ 1 ∈ ℝ))
59		3ne0 12378	. . . . . . . . . . . . . . . . . 18 ⊢ 3 ≠ 0
60	59, 47	pm3.2i 476	. . . . . . . . . . . . . . . . 17 ⊢ (3 ≠ 0 ∧ 3 ≠ 1)
61	60	orci 879	. . . . . . . . . . . . . . . 16 ⊢ ((3 ≠ 0 ∧ 3 ≠ 1) ∨ (𝑛 ≠ 0 ∧ 𝑛 ≠ 1))
62		prneimg 4817	. . . . . . . . . . . . . . . 16 ⊢ (((3 ∈ V ∧ 𝑛 ∈ V) ∧ (0 ∈ V ∧ 1 ∈ ℝ)) → (((3 ≠ 0 ∧ 3 ≠ 1) ∨ (𝑛 ≠ 0 ∧ 𝑛 ≠ 1)) → {3, 𝑛} ≠ {0, 1}))
63	58, 61, 62	mp2 9	. . . . . . . . . . . . . . 15 ⊢ {3, 𝑛} ≠ {0, 1}
64	63	neii 2959	. . . . . . . . . . . . . 14 ⊢ ¬ {3, 𝑛} = {0, 1}
65	64	a1i 11	. . . . . . . . . . . . 13 ⊢ (¬ {3, 𝑛} = {1, 2} → ¬ {3, 𝑛} = {0, 1})
66	56, 65	3bior2fd 1508	. . . . . . . . . . . 12 ⊢ (¬ {3, 𝑛} = {1, 2} → ({3, 𝑛} = {2, 3} ↔ ({3, 𝑛} = {1, 2} ∨ {3, 𝑛} = {0, 1} ∨ {3, 𝑛} = {2, 3})))
67	55, 66	ax-mp 5	. . . . . . . . . . 11 ⊢ ({3, 𝑛} = {2, 3} ↔ ({3, 𝑛} = {1, 2} ∨ {3, 𝑛} = {0, 1} ∨ {3, 𝑛} = {2, 3}))
68		3orcomb 1110	. . . . . . . . . . 11 ⊢ (({3, 𝑛} = {1, 2} ∨ {3, 𝑛} = {0, 1} ∨ {3, 𝑛} = {2, 3}) ↔ ({3, 𝑛} = {1, 2} ∨ {3, 𝑛} = {2, 3} ∨ {3, 𝑛} = {0, 1}))
69	67, 68	bitri 278	. . . . . . . . . 10 ⊢ ({3, 𝑛} = {2, 3} ↔ ({3, 𝑛} = {1, 2} ∨ {3, 𝑛} = {2, 3} ∨ {3, 𝑛} = {0, 1}))
70		prcom 4696	. . . . . . . . . . . 12 ⊢ {2, 3} = {3, 2}
71	70	eqeq2i 2775	. . . . . . . . . . 11 ⊢ ({3, 𝑛} = {2, 3} ↔ {3, 𝑛} = {3, 2})
72	29	a1i 11	. . . . . . . . . . . . 13 ⊢ (2 ∈ V → 𝑛 ∈ V)
73		elex 3474	. . . . . . . . . . . . 13 ⊢ (2 ∈ V → 2 ∈ V)
74	72, 73	preq2b 4810	. . . . . . . . . . . 12 ⊢ (2 ∈ V → ({3, 𝑛} = {3, 2} ↔ 𝑛 = 2))
75	16, 74	ax-mp 5	. . . . . . . . . . 11 ⊢ ({3, 𝑛} = {3, 2} ↔ 𝑛 = 2)
76	71, 75	bitri 278	. . . . . . . . . 10 ⊢ ({3, 𝑛} = {2, 3} ↔ 𝑛 = 2)
77	41, 69, 76	3bitr2i 302	. . . . . . . . 9 ⊢ (({3, 𝑛} = {0, 1} ∨ {3, 𝑛} = {1, 2} ∨ {3, 𝑛} = {2, 3}) ↔ 𝑛 = 2)
78		3orrot 1108	. . . . . . . . . 10 ⊢ (({3, 𝑛} = {3, 4} ∨ {3, 𝑛} = {4, 5} ∨ {3, 𝑛} = {0, 5}) ↔ ({3, 𝑛} = {4, 5} ∨ {3, 𝑛} = {0, 5} ∨ {3, 𝑛} = {3, 4}))
79		5nn0 12552	. . . . . . . . . . . . . . 15 ⊢ 5 ∈ ℕ₀
80	21, 79	pm3.2i 476	. . . . . . . . . . . . . 14 ⊢ (4 ∈ ℕ₀ ∧ 5 ∈ ℕ₀)
81	42, 80	pm3.2i 476	. . . . . . . . . . . . 13 ⊢ ((3 ∈ V ∧ 𝑛 ∈ V) ∧ (4 ∈ ℕ₀ ∧ 5 ∈ ℕ₀))
82		3re 12349	. . . . . . . . . . . . . . . 16 ⊢ 3 ∈ ℝ
83		3lt4 12445	. . . . . . . . . . . . . . . 16 ⊢ 3 < 4
84	82, 83	ltneii 11351	. . . . . . . . . . . . . . 15 ⊢ 3 ≠ 4
85		3lt5 12449	. . . . . . . . . . . . . . . 16 ⊢ 3 < 5
86	82, 85	ltneii 11351	. . . . . . . . . . . . . . 15 ⊢ 3 ≠ 5
87	84, 86	pm3.2i 476	. . . . . . . . . . . . . 14 ⊢ (3 ≠ 4 ∧ 3 ≠ 5)
88	87	orci 879	. . . . . . . . . . . . 13 ⊢ ((3 ≠ 4 ∧ 3 ≠ 5) ∨ (𝑛 ≠ 4 ∧ 𝑛 ≠ 5))
89		prneimg 4817	. . . . . . . . . . . . 13 ⊢ (((3 ∈ V ∧ 𝑛 ∈ V) ∧ (4 ∈ ℕ₀ ∧ 5 ∈ ℕ₀)) → (((3 ≠ 4 ∧ 3 ≠ 5) ∨ (𝑛 ≠ 4 ∧ 𝑛 ≠ 5)) → {3, 𝑛} ≠ {4, 5}))
90	81, 88, 89	mp2 9	. . . . . . . . . . . 12 ⊢ {3, 𝑛} ≠ {4, 5}
91	90	neii 2959	. . . . . . . . . . 11 ⊢ ¬ {3, 𝑛} = {4, 5}
92		id 23	. . . . . . . . . . . 12 ⊢ (¬ {3, 𝑛} = {4, 5} → ¬ {3, 𝑛} = {4, 5})
93	11, 79	pm3.2i 476	. . . . . . . . . . . . . . . 16 ⊢ (0 ∈ V ∧ 5 ∈ ℕ₀)
94	42, 93	pm3.2i 476	. . . . . . . . . . . . . . 15 ⊢ ((3 ∈ V ∧ 𝑛 ∈ V) ∧ (0 ∈ V ∧ 5 ∈ ℕ₀))
95	59, 86	pm3.2i 476	. . . . . . . . . . . . . . . 16 ⊢ (3 ≠ 0 ∧ 3 ≠ 5)
96	95	orci 879	. . . . . . . . . . . . . . 15 ⊢ ((3 ≠ 0 ∧ 3 ≠ 5) ∨ (𝑛 ≠ 0 ∧ 𝑛 ≠ 5))
97		prneimg 4817	. . . . . . . . . . . . . . 15 ⊢ (((3 ∈ V ∧ 𝑛 ∈ V) ∧ (0 ∈ V ∧ 5 ∈ ℕ₀)) → (((3 ≠ 0 ∧ 3 ≠ 5) ∨ (𝑛 ≠ 0 ∧ 𝑛 ≠ 5)) → {3, 𝑛} ≠ {0, 5}))
98	94, 96, 97	mp2 9	. . . . . . . . . . . . . 14 ⊢ {3, 𝑛} ≠ {0, 5}
99	98	neii 2959	. . . . . . . . . . . . 13 ⊢ ¬ {3, 𝑛} = {0, 5}
100	99	a1i 11	. . . . . . . . . . . 12 ⊢ (¬ {3, 𝑛} = {4, 5} → ¬ {3, 𝑛} = {0, 5})
101	92, 100	3bior2fd 1508	. . . . . . . . . . 11 ⊢ (¬ {3, 𝑛} = {4, 5} → ({3, 𝑛} = {3, 4} ↔ ({3, 𝑛} = {4, 5} ∨ {3, 𝑛} = {0, 5} ∨ {3, 𝑛} = {3, 4})))
102	91, 101	ax-mp 5	. . . . . . . . . 10 ⊢ ({3, 𝑛} = {3, 4} ↔ ({3, 𝑛} = {4, 5} ∨ {3, 𝑛} = {0, 5} ∨ {3, 𝑛} = {3, 4}))
103	29	a1i 11	. . . . . . . . . . . 12 ⊢ (4 ∈ ℕ₀ → 𝑛 ∈ V)
104		elex 3474	. . . . . . . . . . . 12 ⊢ (4 ∈ ℕ₀ → 4 ∈ V)
105	103, 104	preq2b 4810	. . . . . . . . . . 11 ⊢ (4 ∈ ℕ₀ → ({3, 𝑛} = {3, 4} ↔ 𝑛 = 4))
106	21, 105	ax-mp 5	. . . . . . . . . 10 ⊢ ({3, 𝑛} = {3, 4} ↔ 𝑛 = 4)
107	78, 102, 106	3bitr2i 302	. . . . . . . . 9 ⊢ (({3, 𝑛} = {3, 4} ∨ {3, 𝑛} = {4, 5} ∨ {3, 𝑛} = {0, 5}) ↔ 𝑛 = 4)
108	77, 107	orbi12i 928	. . . . . . . 8 ⊢ ((({3, 𝑛} = {0, 1} ∨ {3, 𝑛} = {1, 2} ∨ {3, 𝑛} = {2, 3}) ∨ ({3, 𝑛} = {3, 4} ∨ {3, 𝑛} = {4, 5} ∨ {3, 𝑛} = {0, 5})) ↔ (𝑛 = 2 ∨ 𝑛 = 4))
109	40, 108	orbi12i 928	. . . . . . 7 ⊢ (({3, 𝑛} = {0, 3} ∨ (({3, 𝑛} = {0, 1} ∨ {3, 𝑛} = {1, 2} ∨ {3, 𝑛} = {2, 3}) ∨ ({3, 𝑛} = {3, 4} ∨ {3, 𝑛} = {4, 5} ∨ {3, 𝑛} = {0, 5}))) ↔ (𝑛 = 0 ∨ (𝑛 = 2 ∨ 𝑛 = 4)))
110	33, 109	bitri 278	. . . . . 6 ⊢ ({3, 𝑛} ∈ ({{0, 3}} ∪ ({{0, 1}, {1, 2}, {2, 3}} ∪ {{3, 4}, {4, 5}, {0, 5}})) ↔ (𝑛 = 0 ∨ (𝑛 = 2 ∨ 𝑛 = 4)))
111	28, 30, 110	3bitr4i 306	. . . . 5 ⊢ (𝑛 ∈ {0, 2, 4} ↔ {3, 𝑛} ∈ ({{0, 3}} ∪ ({{0, 1}, {1, 2}, {2, 3}} ∪ {{3, 4}, {4, 5}, {0, 5}})))
112	111	a1i 11	. . . 4 ⊢ (((0 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ∧ 2 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ∧ 4 ∈ ({0, 1, 2} ∪ {3, 4, 5})) ∧ 𝑛 ∈ ({0, 1, 2} ∪ {3, 4, 5})) → (𝑛 ∈ {0, 2, 4} ↔ {3, 𝑛} ∈ ({{0, 3}} ∪ ({{0, 1}, {1, 2}, {2, 3}} ∪ {{3, 4}, {4, 5}, {0, 5}}))))
113	27, 112	eqrrabd 4037	. . 3 ⊢ ((0 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ∧ 2 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ∧ 4 ∈ ({0, 1, 2} ∪ {3, 4, 5})) → {0, 2, 4} = {𝑛 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ∣ {3, 𝑛} ∈ ({{0, 3}} ∪ ({{0, 1}, {1, 2}, {2, 3}} ∪ {{3, 4}, {4, 5}, {0, 5}}))})
114	15, 20, 26, 113	mp3an 1490	. 2 ⊢ {0, 2, 4} = {𝑛 ∈ ({0, 1, 2} ∪ {3, 4, 5}) ∣ {3, 𝑛} ∈ ({{0, 3}} ∪ ({{0, 1}, {1, 2}, {2, 3}} ∪ {{3, 4}, {4, 5}, {0, 5}}))}
115	10, 114	eqtr4i 2788	1 ⊢ (𝐺 NeighbVtx 3) = {0, 2, 4}

Colors of variables: wff setvar class

This proof depends on syntax axioms: ¬ wn 3 ↔ wb 209 ∧ wa 401 ∨ wo 861 ∨ w3o 1102 ∧ w3a 1103 = wceq 1570 ∈ wcel 2145 ≠ wne 2957 {crab 3414 Vcvv 3453 ∪ cun 3900 {csn 4587 {cpr 4589 {ctp 4591 ⟨cop 4593 (class class class)co 7417 ℝcr 11127 0cc0 11128 1c1 11129 2c2 12323 3c3 12324 4c4 12325 5c5 12326 ℕ₀cn0 12532 ...cfz 13565 ⟨“cs7 14921 NeighbVtx cnbgr 29800

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 2215 ax-ext 2734 ax-rep 5236 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7740 ax-cnex 11184 ax-resscn 11185 ax-1cn 11186 ax-icn 11187 ax-addcl 11188 ax-addrcl 11189 ax-mulcl 11190 ax-mulrcl 11191 ax-mulcom 11192 ax-addass 11193 ax-mulass 11194 ax-distr 11195 ax-i2m1 11196 ax-1ne0 11197 ax-1rid 11198 ax-rnegex 11199 ax-rrecex 11200 ax-cnre 11201 ax-pre-lttri 11202 ax-pre-lttrn 11203 ax-pre-ltadd 11204 ax-pre-mulgt0 11205

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 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-tp 4592 df-op 4594 df-uni 4871 df-int 4911 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7374 df-ov 7420 df-oprab 7421 df-mpo 7422 df-om 7867 df-1st 7990 df-2nd 7991 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-1o 8459 df-2o 8460 df-oadd 8463 df-er 8700 df-en 8957 df-dom 8958 df-sdom 8959 df-fin 8960 df-dju 9910 df-card 9948 df-pnf 11273 df-mnf 11274 df-xr 11275 df-ltxr 11276 df-le 11277 df-sub 11471 df-neg 11472 df-nn 12262 df-2 12331 df-3 12332 df-4 12333 df-5 12334 df-6 12335 df-7 12336 df-n0 12533 df-xnn0 12606 df-z 12620 df-uz 12892 df-fz 13566 df-fzo 13714 df-hash 14399 df-word 14583 df-concat 14640 df-s1 14667 df-s2 14923 df-s3 14924 df-s4 14925 df-s5 14926 df-s6 14927 df-s7 14928 df-vtx 29463 df-iedg 29464 df-edg 29513 df-upgr 29547 df-umgr 29548 df-usgr 29619 df-nbgr 29801

This theorem is used by: usgrexmpl2trifr 48961

W3C validator