Theorem fz1isolem 13102

Description: Lemma for fz1iso 13103. (Contributed by Mario Carneiro, 2-Apr-2014.)

Hypotheses

Ref	Expression
fz1iso.1	⊢ 𝐺 = (rec((𝑛 ∈ V ↦ (𝑛 + 1)), 1) ↾ ω)
fz1iso.2	⊢ 𝐵 = (ℕ ∩ (◡ < “ {((#‘𝐴) + 1)}))
fz1iso.3	⊢ 𝐶 = (ω ∩ (◡𝐺‘((#‘𝐴) + 1)))
fz1iso.4	⊢ 𝑂 = OrdIso(𝑅, 𝐴)

Assertion

Ref	Expression
fz1isolem	⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ∃𝑓 𝑓 Isom < , 𝑅 ((1...(#‘𝐴)), 𝐴))

Distinct variable groups:   𝑓,𝑛,𝐴   𝐵,𝑓   𝑓,𝐺   𝑓,𝑂   𝑅,𝑓

Allowed substitution hints:   𝐵(𝑛)   𝐶(𝑓,𝑛)   𝑅(𝑛)   𝐺(𝑛)   𝑂(𝑛)

Proof of Theorem fz1isolem

Step	Hyp	Ref	Expression
1		hashcl 13009	. . . . . . . . 9 ⊢ (𝐴 ∈ Fin → (#‘𝐴) ∈ ℕ0)
2	1	adantl 481	. . . . . . . 8 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (#‘𝐴) ∈ ℕ0)
3		nnuz 11599	. . . . . . . . . . 11 ⊢ ℕ = (ℤ≥‘1)
4		1z 11284	. . . . . . . . . . . . 13 ⊢ 1 ∈ ℤ
5		fz1iso.1	. . . . . . . . . . . . 13 ⊢ 𝐺 = (rec((𝑛 ∈ V ↦ (𝑛 + 1)), 1) ↾ ω)
6	4, 5	om2uzisoi 12615	. . . . . . . . . . . 12 ⊢ 𝐺 Isom E , < (ω, (ℤ≥‘1))
7		isoeq5 6471	. . . . . . . . . . . 12 ⊢ (ℕ = (ℤ≥‘1) → (𝐺 Isom E , < (ω, ℕ) ↔ 𝐺 Isom E , < (ω, (ℤ≥‘1))))
8	6, 7	mpbiri 247	. . . . . . . . . . 11 ⊢ (ℕ = (ℤ≥‘1) → 𝐺 Isom E , < (ω, ℕ))
9	3, 8	ax-mp 5	. . . . . . . . . 10 ⊢ 𝐺 Isom E , < (ω, ℕ)
10		isocnv 6480	. . . . . . . . . 10 ⊢ (𝐺 Isom E , < (ω, ℕ) → ◡𝐺 Isom < , E (ℕ, ω))
11	9, 10	ax-mp 5	. . . . . . . . 9 ⊢ ◡𝐺 Isom < , E (ℕ, ω)
12		nn0p1nn 11209	. . . . . . . . 9 ⊢ ((#‘𝐴) ∈ ℕ0 → ((#‘𝐴) + 1) ∈ ℕ)
13		fz1iso.2	. . . . . . . . . 10 ⊢ 𝐵 = (ℕ ∩ (◡ < “ {((#‘𝐴) + 1)}))
14		fz1iso.3	. . . . . . . . . . 11 ⊢ 𝐶 = (ω ∩ (◡𝐺‘((#‘𝐴) + 1)))
15		fvex 6113	. . . . . . . . . . . . 13 ⊢ (◡𝐺‘((#‘𝐴) + 1)) ∈ V
16	15	epini 5414	. . . . . . . . . . . 12 ⊢ (◡ E “ {(◡𝐺‘((#‘𝐴) + 1))}) = (◡𝐺‘((#‘𝐴) + 1))
17	16	ineq2i 3773	. . . . . . . . . . 11 ⊢ (ω ∩ (◡ E “ {(◡𝐺‘((#‘𝐴) + 1))})) = (ω ∩ (◡𝐺‘((#‘𝐴) + 1)))
18	14, 17	eqtr4i 2635	. . . . . . . . . 10 ⊢ 𝐶 = (ω ∩ (◡ E “ {(◡𝐺‘((#‘𝐴) + 1))}))
19	13, 18	isoini2 6489	. . . . . . . . 9 ⊢ ((◡𝐺 Isom < , E (ℕ, ω) ∧ ((#‘𝐴) + 1) ∈ ℕ) → (◡𝐺 ↾ 𝐵) Isom < , E (𝐵, 𝐶))
20	11, 12, 19	sylancr 694	. . . . . . . 8 ⊢ ((#‘𝐴) ∈ ℕ0 → (◡𝐺 ↾ 𝐵) Isom < , E (𝐵, 𝐶))
21	2, 20	syl 17	. . . . . . 7 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (◡𝐺 ↾ 𝐵) Isom < , E (𝐵, 𝐶))
22		nnz 11276	. . . . . . . . . . . . 13 ⊢ (𝑓 ∈ ℕ → 𝑓 ∈ ℤ)
23	2	nn0zd 11356	. . . . . . . . . . . . 13 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (#‘𝐴) ∈ ℤ)
24		eluz 11577	. . . . . . . . . . . . 13 ⊢ ((𝑓 ∈ ℤ ∧ (#‘𝐴) ∈ ℤ) → ((#‘𝐴) ∈ (ℤ≥‘𝑓) ↔ 𝑓 ≤ (#‘𝐴)))
25	22, 23, 24	syl2anr 494	. . . . . . . . . . . 12 ⊢ (((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) ∧ 𝑓 ∈ ℕ) → ((#‘𝐴) ∈ (ℤ≥‘𝑓) ↔ 𝑓 ≤ (#‘𝐴)))
26		zleltp1 11305	. . . . . . . . . . . . . 14 ⊢ ((𝑓 ∈ ℤ ∧ (#‘𝐴) ∈ ℤ) → (𝑓 ≤ (#‘𝐴) ↔ 𝑓 < ((#‘𝐴) + 1)))
27	22, 23, 26	syl2anr 494	. . . . . . . . . . . . 13 ⊢ (((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) ∧ 𝑓 ∈ ℕ) → (𝑓 ≤ (#‘𝐴) ↔ 𝑓 < ((#‘𝐴) + 1)))
28		ovex 6577	. . . . . . . . . . . . . 14 ⊢ ((#‘𝐴) + 1) ∈ V
29		vex 3176	. . . . . . . . . . . . . . 15 ⊢ 𝑓 ∈ V
30	29	eliniseg 5413	. . . . . . . . . . . . . 14 ⊢ (((#‘𝐴) + 1) ∈ V → (𝑓 ∈ (◡ < “ {((#‘𝐴) + 1)}) ↔ 𝑓 < ((#‘𝐴) + 1)))
31	28, 30	ax-mp 5	. . . . . . . . . . . . 13 ⊢ (𝑓 ∈ (◡ < “ {((#‘𝐴) + 1)}) ↔ 𝑓 < ((#‘𝐴) + 1))
32	27, 31	syl6bbr 277	. . . . . . . . . . . 12 ⊢ (((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) ∧ 𝑓 ∈ ℕ) → (𝑓 ≤ (#‘𝐴) ↔ 𝑓 ∈ (◡ < “ {((#‘𝐴) + 1)})))
33	25, 32	bitr2d 268	. . . . . . . . . . 11 ⊢ (((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) ∧ 𝑓 ∈ ℕ) → (𝑓 ∈ (◡ < “ {((#‘𝐴) + 1)}) ↔ (#‘𝐴) ∈ (ℤ≥‘𝑓)))
34	33	pm5.32da 671	. . . . . . . . . 10 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ((𝑓 ∈ ℕ ∧ 𝑓 ∈ (◡ < “ {((#‘𝐴) + 1)})) ↔ (𝑓 ∈ ℕ ∧ (#‘𝐴) ∈ (ℤ≥‘𝑓))))
35	13	elin2 3763	. . . . . . . . . 10 ⊢ (𝑓 ∈ 𝐵 ↔ (𝑓 ∈ ℕ ∧ 𝑓 ∈ (◡ < “ {((#‘𝐴) + 1)})))
36		elfzuzb 12207	. . . . . . . . . . 11 ⊢ (𝑓 ∈ (1...(#‘𝐴)) ↔ (𝑓 ∈ (ℤ≥‘1) ∧ (#‘𝐴) ∈ (ℤ≥‘𝑓)))
37		elnnuz 11600	. . . . . . . . . . . 12 ⊢ (𝑓 ∈ ℕ ↔ 𝑓 ∈ (ℤ≥‘1))
38	37	anbi1i 727	. . . . . . . . . . 11 ⊢ ((𝑓 ∈ ℕ ∧ (#‘𝐴) ∈ (ℤ≥‘𝑓)) ↔ (𝑓 ∈ (ℤ≥‘1) ∧ (#‘𝐴) ∈ (ℤ≥‘𝑓)))
39	36, 38	bitr4i 266	. . . . . . . . . 10 ⊢ (𝑓 ∈ (1...(#‘𝐴)) ↔ (𝑓 ∈ ℕ ∧ (#‘𝐴) ∈ (ℤ≥‘𝑓)))
40	34, 35, 39	3bitr4g 302	. . . . . . . . 9 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (𝑓 ∈ 𝐵 ↔ 𝑓 ∈ (1...(#‘𝐴))))
41	40	eqrdv 2608	. . . . . . . 8 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → 𝐵 = (1...(#‘𝐴)))
42		isoeq4 6470	. . . . . . . 8 ⊢ (𝐵 = (1...(#‘𝐴)) → ((◡𝐺 ↾ 𝐵) Isom < , E (𝐵, 𝐶) ↔ (◡𝐺 ↾ 𝐵) Isom < , E ((1...(#‘𝐴)), 𝐶)))
43	41, 42	syl 17	. . . . . . 7 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ((◡𝐺 ↾ 𝐵) Isom < , E (𝐵, 𝐶) ↔ (◡𝐺 ↾ 𝐵) Isom < , E ((1...(#‘𝐴)), 𝐶)))
44	21, 43	mpbid 221	. . . . . 6 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (◡𝐺 ↾ 𝐵) Isom < , E ((1...(#‘𝐴)), 𝐶))
45		fz1iso.4	. . . . . . . . . . . . . . . . . 18 ⊢ 𝑂 = OrdIso(𝑅, 𝐴)
46	45	oion 8324	. . . . . . . . . . . . . . . . 17 ⊢ (𝐴 ∈ Fin → dom 𝑂 ∈ On)
47	46	adantl 481	. . . . . . . . . . . . . . . 16 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → dom 𝑂 ∈ On)
48		simpr 476	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → 𝐴 ∈ Fin)
49		wofi 8094	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → 𝑅 We 𝐴)
50	45	oien 8326	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐴 ∈ Fin ∧ 𝑅 We 𝐴) → dom 𝑂 ≈ 𝐴)
51	48, 49, 50	syl2anc 691	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → dom 𝑂 ≈ 𝐴)
52		enfii 8062	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐴 ∈ Fin ∧ dom 𝑂 ≈ 𝐴) → dom 𝑂 ∈ Fin)
53	48, 51, 52	syl2anc 691	. . . . . . . . . . . . . . . 16 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → dom 𝑂 ∈ Fin)
54	47, 53	elind 3760	. . . . . . . . . . . . . . 15 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → dom 𝑂 ∈ (On ∩ Fin))
55		onfin2 8037	. . . . . . . . . . . . . . 15 ⊢ ω = (On ∩ Fin)
56	54, 55	syl6eleqr 2699	. . . . . . . . . . . . . 14 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → dom 𝑂 ∈ ω)
57		eqid 2610	. . . . . . . . . . . . . . . 16 ⊢ (rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω) = (rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)
58		0z 11265	. . . . . . . . . . . . . . . 16 ⊢ 0 ∈ ℤ
59	5, 57, 4, 58	uzrdgxfr 12628	. . . . . . . . . . . . . . 15 ⊢ (dom 𝑂 ∈ ω → (𝐺‘dom 𝑂) = (((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) + (1 − 0)))
60		1m0e1 11008	. . . . . . . . . . . . . . . 16 ⊢ (1 − 0) = 1
61	60	oveq2i 6560	. . . . . . . . . . . . . . 15 ⊢ (((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) + (1 − 0)) = (((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) + 1)
62	59, 61	syl6eq 2660	. . . . . . . . . . . . . 14 ⊢ (dom 𝑂 ∈ ω → (𝐺‘dom 𝑂) = (((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) + 1))
63	56, 62	syl 17	. . . . . . . . . . . . 13 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (𝐺‘dom 𝑂) = (((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) + 1))
64	51	ensymd 7893	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → 𝐴 ≈ dom 𝑂)
65		cardennn 8692	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐴 ≈ dom 𝑂 ∧ dom 𝑂 ∈ ω) → (card‘𝐴) = dom 𝑂)
66	64, 56, 65	syl2anc 691	. . . . . . . . . . . . . . . 16 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (card‘𝐴) = dom 𝑂)
67	66	fveq2d 6107	. . . . . . . . . . . . . . 15 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘(card‘𝐴)) = ((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂))
68	57	hashgval 12982	. . . . . . . . . . . . . . . 16 ⊢ (𝐴 ∈ Fin → ((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘(card‘𝐴)) = (#‘𝐴))
69	68	adantl 481	. . . . . . . . . . . . . . 15 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘(card‘𝐴)) = (#‘𝐴))
70	67, 69	eqtr3d 2646	. . . . . . . . . . . . . 14 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) = (#‘𝐴))
71	70	oveq1d 6564	. . . . . . . . . . . . 13 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (((rec((𝑛 ∈ V ↦ (𝑛 + 1)), 0) ↾ ω)‘dom 𝑂) + 1) = ((#‘𝐴) + 1))
72	63, 71	eqtrd 2644	. . . . . . . . . . . 12 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (𝐺‘dom 𝑂) = ((#‘𝐴) + 1))
73	72	fveq2d 6107	. . . . . . . . . . 11 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (◡𝐺‘(𝐺‘dom 𝑂)) = (◡𝐺‘((#‘𝐴) + 1)))
74		isof1o 6473	. . . . . . . . . . . . 13 ⊢ (𝐺 Isom E , < (ω, ℕ) → 𝐺:ω–1-1-onto→ℕ)
75	9, 74	ax-mp 5	. . . . . . . . . . . 12 ⊢ 𝐺:ω–1-1-onto→ℕ
76		f1ocnvfv1 6432	. . . . . . . . . . . 12 ⊢ ((𝐺:ω–1-1-onto→ℕ ∧ dom 𝑂 ∈ ω) → (◡𝐺‘(𝐺‘dom 𝑂)) = dom 𝑂)
77	75, 56, 76	sylancr 694	. . . . . . . . . . 11 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (◡𝐺‘(𝐺‘dom 𝑂)) = dom 𝑂)
78	73, 77	eqtr3d 2646	. . . . . . . . . 10 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (◡𝐺‘((#‘𝐴) + 1)) = dom 𝑂)
79	78	ineq2d 3776	. . . . . . . . 9 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (ω ∩ (◡𝐺‘((#‘𝐴) + 1))) = (ω ∩ dom 𝑂))
80		ordom 6966	. . . . . . . . . . 11 ⊢ Ord ω
81		ordelss 5656	. . . . . . . . . . 11 ⊢ ((Ord ω ∧ dom 𝑂 ∈ ω) → dom 𝑂 ⊆ ω)
82	80, 56, 81	sylancr 694	. . . . . . . . . 10 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → dom 𝑂 ⊆ ω)
83		sseqin2 3779	. . . . . . . . . 10 ⊢ (dom 𝑂 ⊆ ω ↔ (ω ∩ dom 𝑂) = dom 𝑂)
84	82, 83	sylib 207	. . . . . . . . 9 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (ω ∩ dom 𝑂) = dom 𝑂)
85	79, 84	eqtrd 2644	. . . . . . . 8 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (ω ∩ (◡𝐺‘((#‘𝐴) + 1))) = dom 𝑂)
86	14, 85	syl5eq 2656	. . . . . . 7 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → 𝐶 = dom 𝑂)
87		isoeq5 6471	. . . . . . 7 ⊢ (𝐶 = dom 𝑂 → ((◡𝐺 ↾ 𝐵) Isom < , E ((1...(#‘𝐴)), 𝐶) ↔ (◡𝐺 ↾ 𝐵) Isom < , E ((1...(#‘𝐴)), dom 𝑂)))
88	86, 87	syl 17	. . . . . 6 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ((◡𝐺 ↾ 𝐵) Isom < , E ((1...(#‘𝐴)), 𝐶) ↔ (◡𝐺 ↾ 𝐵) Isom < , E ((1...(#‘𝐴)), dom 𝑂)))
89	44, 88	mpbid 221	. . . . 5 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (◡𝐺 ↾ 𝐵) Isom < , E ((1...(#‘𝐴)), dom 𝑂))
90	45	oiiso 8325	. . . . . 6 ⊢ ((𝐴 ∈ Fin ∧ 𝑅 We 𝐴) → 𝑂 Isom E , 𝑅 (dom 𝑂, 𝐴))
91	48, 49, 90	syl2anc 691	. . . . 5 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → 𝑂 Isom E , 𝑅 (dom 𝑂, 𝐴))
92		isotr 6486	. . . . 5 ⊢ (((◡𝐺 ↾ 𝐵) Isom < , E ((1...(#‘𝐴)), dom 𝑂) ∧ 𝑂 Isom E , 𝑅 (dom 𝑂, 𝐴)) → (𝑂 ∘ (◡𝐺 ↾ 𝐵)) Isom < , 𝑅 ((1...(#‘𝐴)), 𝐴))
93	89, 91, 92	syl2anc 691	. . . 4 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (𝑂 ∘ (◡𝐺 ↾ 𝐵)) Isom < , 𝑅 ((1...(#‘𝐴)), 𝐴))
94		isof1o 6473	. . . 4 ⊢ ((𝑂 ∘ (◡𝐺 ↾ 𝐵)) Isom < , 𝑅 ((1...(#‘𝐴)), 𝐴) → (𝑂 ∘ (◡𝐺 ↾ 𝐵)):(1...(#‘𝐴))–1-1-onto→𝐴)
95		f1of 6050	. . . 4 ⊢ ((𝑂 ∘ (◡𝐺 ↾ 𝐵)):(1...(#‘𝐴))–1-1-onto→𝐴 → (𝑂 ∘ (◡𝐺 ↾ 𝐵)):(1...(#‘𝐴))⟶𝐴)
96	93, 94, 95	3syl 18	. . 3 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (𝑂 ∘ (◡𝐺 ↾ 𝐵)):(1...(#‘𝐴))⟶𝐴)
97		fzfid 12634	. . 3 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (1...(#‘𝐴)) ∈ Fin)
98		fex 6394	. . 3 ⊢ (((𝑂 ∘ (◡𝐺 ↾ 𝐵)):(1...(#‘𝐴))⟶𝐴 ∧ (1...(#‘𝐴)) ∈ Fin) → (𝑂 ∘ (◡𝐺 ↾ 𝐵)) ∈ V)
99	96, 97, 98	syl2anc 691	. 2 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → (𝑂 ∘ (◡𝐺 ↾ 𝐵)) ∈ V)
100		isoeq1 6467	. . 3 ⊢ (𝑓 = (𝑂 ∘ (◡𝐺 ↾ 𝐵)) → (𝑓 Isom < , 𝑅 ((1...(#‘𝐴)), 𝐴) ↔ (𝑂 ∘ (◡𝐺 ↾ 𝐵)) Isom < , 𝑅 ((1...(#‘𝐴)), 𝐴)))
101	100	spcegv 3267	. 2 ⊢ ((𝑂 ∘ (◡𝐺 ↾ 𝐵)) ∈ V → ((𝑂 ∘ (◡𝐺 ↾ 𝐵)) Isom < , 𝑅 ((1...(#‘𝐴)), 𝐴) → ∃𝑓 𝑓 Isom < , 𝑅 ((1...(#‘𝐴)), 𝐴)))
102	99, 93, 101	sylc 63	1 ⊢ ((𝑅 Or 𝐴 ∧ 𝐴 ∈ Fin) → ∃𝑓 𝑓 Isom < , 𝑅 ((1...(#‘𝐴)), 𝐴))

Syntax hints:   → wi 4   ↔ wb 195   ∧ wa 383   = wceq 1475  ∃wex 1695   ∈ wcel 1977  Vcvv 3173   ∩ cin 3539   ⊆ wss 3540  {csn 4125   class class class wbr 4583   ↦ cmpt 4643   E cep 4947   Or wor 4958   We wwe 4996  ^◡ccnv 5037  dom cdm 5038   ↾ cres 5040   “ cima 5041   ∘ ccom 5042  Ord word 5639  Oncon0 5640  ⟶wf 5800  –1-1-onto→wf1o 5803  ‘cfv 5804   Isom wiso 5805  (class class class)co 6549  ωcom 6957  reccrdg 7392   ≈ cen 7838  Fincfn 7841  OrdIsocoi 8297  cardccrd 8644  0cc0 9815  1c1 9816   + caddc 9818   < clt 9953   ≤ cle 9954   − cmin 10145  ℕcn 10897  ℕ₀cn0 11169  ℤcz 11254  ℤ_≥cuz 11563  ...cfz 12197  #chash 12979

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847  ax-cnex 9871  ax-resscn 9872  ax-1cn 9873  ax-icn 9874  ax-addcl 9875  ax-addrcl 9876  ax-mulcl 9877  ax-mulrcl 9878  ax-mulcom 9879  ax-addass 9880  ax-mulass 9881  ax-distr 9882  ax-i2m1 9883  ax-1ne0 9884  ax-1rid 9885  ax-rnegex 9886  ax-rrecex 9887  ax-cnre 9888  ax-pre-lttri 9889  ax-pre-lttrn 9890  ax-pre-ltadd 9891  ax-pre-mulgt0 9892

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-nel 2783  df-ral 2901  df-rex 2902  df-reu 2903  df-rmo 2904  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-pss 3556  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-tp 4130  df-op 4132  df-uni 4373  df-int 4411  df-iun 4457  df-br 4584  df-opab 4644  df-mpt 4645  df-tr 4681  df-eprel 4949  df-id 4953  df-po 4959  df-so 4960  df-fr 4997  df-se 4998  df-we 4999  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-pred 5597  df-ord 5643  df-on 5644  df-lim 5645  df-suc 5646  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-isom 5813  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-om 6958  df-1st 7059  df-2nd 7060  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-1o 7447  df-er 7629  df-en 7842  df-dom 7843  df-sdom 7844  df-fin 7845  df-oi 8298  df-card 8648  df-pnf 9955  df-mnf 9956  df-xr 9957  df-ltxr 9958  df-le 9959  df-sub 10147  df-neg 10148  df-nn 10898  df-n0 11170  df-z 11255  df-uz 11564  df-fz 12198  df-hash 12980

This theorem is referenced by:  fz1iso  13103