erdsze2lem1 - Mathbox for Mario Carneiro

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Theorem erdsze2lem1 34493

Description: Lemma for erdsze2 34495. (Contributed by Mario Carneiro, 22-Jan-2015.)

**Hypotheses**
Ref	Expression
erdsze2.r	⊢ (𝜑 → 𝑅 ∈ ℕ)
erdsze2.s	⊢ (𝜑 → 𝑆 ∈ ℕ)
erdsze2.f	⊢ (𝜑 → 𝐹:𝐴–1-1→ℝ)
erdsze2.a	⊢ (𝜑 → 𝐴 ⊆ ℝ)
erdsze2lem.n	⊢ 𝑁 = ((𝑅 − 1) · (𝑆 − 1))
erdsze2lem.l	⊢ (𝜑 → 𝑁 < (♯‘𝐴))

**Assertion**
Ref	Expression
erdsze2lem1	⊢ (𝜑 → ∃𝑓(𝑓:(1...(𝑁 + 1))–1-1→𝐴 ∧ 𝑓 Isom < , < ((1...(𝑁 + 1)), ran 𝑓)))

Distinct variable groups: 𝐴,𝑓 𝑓,𝐹 𝑅,𝑓 𝑆,𝑓 𝑓,𝑁 𝜑,𝑓

Proof of Theorem erdsze2lem1 Dummy variable 𝑠 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		erdsze2lem.n	. . . . . . . . 9 ⊢ 𝑁 = ((𝑅 − 1) · (𝑆 − 1))
2		erdsze2.r	. . . . . . . . . . 11 ⊢ (𝜑 → 𝑅 ∈ ℕ)
3		nnm1nn0 12518	. . . . . . . . . . 11 ⊢ (𝑅 ∈ ℕ → (𝑅 − 1) ∈ ℕ₀)
4	2, 3	syl 17	. . . . . . . . . 10 ⊢ (𝜑 → (𝑅 − 1) ∈ ℕ₀)
5		erdsze2.s	. . . . . . . . . . 11 ⊢ (𝜑 → 𝑆 ∈ ℕ)
6		nnm1nn0 12518	. . . . . . . . . . 11 ⊢ (𝑆 ∈ ℕ → (𝑆 − 1) ∈ ℕ₀)
7	5, 6	syl 17	. . . . . . . . . 10 ⊢ (𝜑 → (𝑆 − 1) ∈ ℕ₀)
8	4, 7	nn0mulcld 12542	. . . . . . . . 9 ⊢ (𝜑 → ((𝑅 − 1) · (𝑆 − 1)) ∈ ℕ₀)
9	1, 8	eqeltrid 2836	. . . . . . . 8 ⊢ (𝜑 → 𝑁 ∈ ℕ₀)
10		peano2nn0 12517	. . . . . . . 8 ⊢ (𝑁 ∈ ℕ₀ → (𝑁 + 1) ∈ ℕ₀)
11		hashfz1 14311	. . . . . . . 8 ⊢ ((𝑁 + 1) ∈ ℕ₀ → (♯‘(1...(𝑁 + 1))) = (𝑁 + 1))
12	9, 10, 11	3syl 18	. . . . . . 7 ⊢ (𝜑 → (♯‘(1...(𝑁 + 1))) = (𝑁 + 1))
13	12	adantr 480	. . . . . 6 ⊢ ((𝜑 ∧ 𝐴 ∈ Fin) → (♯‘(1...(𝑁 + 1))) = (𝑁 + 1))
14		erdsze2lem.l	. . . . . . . 8 ⊢ (𝜑 → 𝑁 < (♯‘𝐴))
15	14	adantr 480	. . . . . . 7 ⊢ ((𝜑 ∧ 𝐴 ∈ Fin) → 𝑁 < (♯‘𝐴))
16		hashcl 14321	. . . . . . . 8 ⊢ (𝐴 ∈ Fin → (♯‘𝐴) ∈ ℕ₀)
17		nn0ltp1le 12625	. . . . . . . 8 ⊢ ((𝑁 ∈ ℕ₀ ∧ (♯‘𝐴) ∈ ℕ₀) → (𝑁 < (♯‘𝐴) ↔ (𝑁 + 1) ≤ (♯‘𝐴)))
18	9, 16, 17	syl2an 595	. . . . . . 7 ⊢ ((𝜑 ∧ 𝐴 ∈ Fin) → (𝑁 < (♯‘𝐴) ↔ (𝑁 + 1) ≤ (♯‘𝐴)))
19	15, 18	mpbid 231	. . . . . 6 ⊢ ((𝜑 ∧ 𝐴 ∈ Fin) → (𝑁 + 1) ≤ (♯‘𝐴))
20	13, 19	eqbrtrd 5170	. . . . 5 ⊢ ((𝜑 ∧ 𝐴 ∈ Fin) → (♯‘(1...(𝑁 + 1))) ≤ (♯‘𝐴))
21		fzfid 13943	. . . . . 6 ⊢ ((𝜑 ∧ 𝐴 ∈ Fin) → (1...(𝑁 + 1)) ∈ Fin)
22		simpr 484	. . . . . 6 ⊢ ((𝜑 ∧ 𝐴 ∈ Fin) → 𝐴 ∈ Fin)
23		hashdom 14344	. . . . . 6 ⊢ (((1...(𝑁 + 1)) ∈ Fin ∧ 𝐴 ∈ Fin) → ((♯‘(1...(𝑁 + 1))) ≤ (♯‘𝐴) ↔ (1...(𝑁 + 1)) ≼ 𝐴))
24	21, 22, 23	syl2anc 583	. . . . 5 ⊢ ((𝜑 ∧ 𝐴 ∈ Fin) → ((♯‘(1...(𝑁 + 1))) ≤ (♯‘𝐴) ↔ (1...(𝑁 + 1)) ≼ 𝐴))
25	20, 24	mpbid 231	. . . 4 ⊢ ((𝜑 ∧ 𝐴 ∈ Fin) → (1...(𝑁 + 1)) ≼ 𝐴)
26		simpr 484	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝐴 ∈ Fin) → ¬ 𝐴 ∈ Fin)
27		fzfid 13943	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝐴 ∈ Fin) → (1...(𝑁 + 1)) ∈ Fin)
28		isinffi 9991	. . . . . 6 ⊢ ((¬ 𝐴 ∈ Fin ∧ (1...(𝑁 + 1)) ∈ Fin) → ∃𝑓 𝑓:(1...(𝑁 + 1))–1-1→𝐴)
29	26, 27, 28	syl2anc 583	. . . . 5 ⊢ ((𝜑 ∧ ¬ 𝐴 ∈ Fin) → ∃𝑓 𝑓:(1...(𝑁 + 1))–1-1→𝐴)
30		erdsze2.a	. . . . . . . 8 ⊢ (𝜑 → 𝐴 ⊆ ℝ)
31		reex 11205	. . . . . . . 8 ⊢ ℝ ∈ V
32		ssexg 5323	. . . . . . . 8 ⊢ ((𝐴 ⊆ ℝ ∧ ℝ ∈ V) → 𝐴 ∈ V)
33	30, 31, 32	sylancl 585	. . . . . . 7 ⊢ (𝜑 → 𝐴 ∈ V)
34	33	adantr 480	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝐴 ∈ Fin) → 𝐴 ∈ V)
35		brdomg 8956	. . . . . 6 ⊢ (𝐴 ∈ V → ((1...(𝑁 + 1)) ≼ 𝐴 ↔ ∃𝑓 𝑓:(1...(𝑁 + 1))–1-1→𝐴))
36	34, 35	syl 17	. . . . 5 ⊢ ((𝜑 ∧ ¬ 𝐴 ∈ Fin) → ((1...(𝑁 + 1)) ≼ 𝐴 ↔ ∃𝑓 𝑓:(1...(𝑁 + 1))–1-1→𝐴))
37	29, 36	mpbird 257	. . . 4 ⊢ ((𝜑 ∧ ¬ 𝐴 ∈ Fin) → (1...(𝑁 + 1)) ≼ 𝐴)
38	25, 37	pm2.61dan 810	. . 3 ⊢ (𝜑 → (1...(𝑁 + 1)) ≼ 𝐴)
39		domeng 8962	. . . 4 ⊢ (𝐴 ∈ V → ((1...(𝑁 + 1)) ≼ 𝐴 ↔ ∃𝑠((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)))
40	33, 39	syl 17	. . 3 ⊢ (𝜑 → ((1...(𝑁 + 1)) ≼ 𝐴 ↔ ∃𝑠((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)))
41	38, 40	mpbid 231	. 2 ⊢ (𝜑 → ∃𝑠((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴))
42		simprr 770	. . . . . 6 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → 𝑠 ⊆ 𝐴)
43	30	adantr 480	. . . . . 6 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → 𝐴 ⊆ ℝ)
44	42, 43	sstrd 3992	. . . . 5 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → 𝑠 ⊆ ℝ)
45		ltso 11299	. . . . 5 ⊢ < Or ℝ
46		soss 5608	. . . . 5 ⊢ (𝑠 ⊆ ℝ → ( < Or ℝ → < Or 𝑠))
47	44, 45, 46	mpisyl 21	. . . 4 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → < Or 𝑠)
48		fzfid 13943	. . . . 5 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → (1...(𝑁 + 1)) ∈ Fin)
49		simprl 768	. . . . . 6 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → (1...(𝑁 + 1)) ≈ 𝑠)
50		enfi 9194	. . . . . 6 ⊢ ((1...(𝑁 + 1)) ≈ 𝑠 → ((1...(𝑁 + 1)) ∈ Fin ↔ 𝑠 ∈ Fin))
51	49, 50	syl 17	. . . . 5 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → ((1...(𝑁 + 1)) ∈ Fin ↔ 𝑠 ∈ Fin))
52	48, 51	mpbid 231	. . . 4 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → 𝑠 ∈ Fin)
53		fz1iso 14428	. . . 4 ⊢ (( < Or 𝑠 ∧ 𝑠 ∈ Fin) → ∃𝑓 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠))
54	47, 52, 53	syl2anc 583	. . 3 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → ∃𝑓 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠))
55		isof1o 7323	. . . . . . . . . 10 ⊢ (𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠) → 𝑓:(1...(♯‘𝑠))–1-1-onto→𝑠)
56	55	adantl 481	. . . . . . . . 9 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → 𝑓:(1...(♯‘𝑠))–1-1-onto→𝑠)
57		hashen 14312	. . . . . . . . . . . . . . 15 ⊢ (((1...(𝑁 + 1)) ∈ Fin ∧ 𝑠 ∈ Fin) → ((♯‘(1...(𝑁 + 1))) = (♯‘𝑠) ↔ (1...(𝑁 + 1)) ≈ 𝑠))
58	48, 52, 57	syl2anc 583	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → ((♯‘(1...(𝑁 + 1))) = (♯‘𝑠) ↔ (1...(𝑁 + 1)) ≈ 𝑠))
59	49, 58	mpbird 257	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → (♯‘(1...(𝑁 + 1))) = (♯‘𝑠))
60	12	adantr 480	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → (♯‘(1...(𝑁 + 1))) = (𝑁 + 1))
61	59, 60	eqtr3d 2773	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → (♯‘𝑠) = (𝑁 + 1))
62	61	adantr 480	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → (♯‘𝑠) = (𝑁 + 1))
63	62	oveq2d 7428	. . . . . . . . . 10 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → (1...(♯‘𝑠)) = (1...(𝑁 + 1)))
64	63	f1oeq2d 6829	. . . . . . . . 9 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → (𝑓:(1...(♯‘𝑠))–1-1-onto→𝑠 ↔ 𝑓:(1...(𝑁 + 1))–1-1-onto→𝑠))
65	56, 64	mpbid 231	. . . . . . . 8 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → 𝑓:(1...(𝑁 + 1))–1-1-onto→𝑠)
66		f1of1 6832	. . . . . . . 8 ⊢ (𝑓:(1...(𝑁 + 1))–1-1-onto→𝑠 → 𝑓:(1...(𝑁 + 1))–1-1→𝑠)
67	65, 66	syl 17	. . . . . . 7 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → 𝑓:(1...(𝑁 + 1))–1-1→𝑠)
68		simplrr 775	. . . . . . 7 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → 𝑠 ⊆ 𝐴)
69		f1ss 6793	. . . . . . 7 ⊢ ((𝑓:(1...(𝑁 + 1))–1-1→𝑠 ∧ 𝑠 ⊆ 𝐴) → 𝑓:(1...(𝑁 + 1))–1-1→𝐴)
70	67, 68, 69	syl2anc 583	. . . . . 6 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → 𝑓:(1...(𝑁 + 1))–1-1→𝐴)
71		simpr 484	. . . . . . . 8 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠))
72		f1ofo 6840	. . . . . . . . 9 ⊢ (𝑓:(1...(♯‘𝑠))–1-1-onto→𝑠 → 𝑓:(1...(♯‘𝑠))–onto→𝑠)
73		forn 6808	. . . . . . . . 9 ⊢ (𝑓:(1...(♯‘𝑠))–onto→𝑠 → ran 𝑓 = 𝑠)
74		isoeq5 7321	. . . . . . . . 9 ⊢ (ran 𝑓 = 𝑠 → (𝑓 Isom < , < ((1...(♯‘𝑠)), ran 𝑓) ↔ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)))
75	56, 72, 73, 74	4syl 19	. . . . . . . 8 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → (𝑓 Isom < , < ((1...(♯‘𝑠)), ran 𝑓) ↔ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)))
76	71, 75	mpbird 257	. . . . . . 7 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → 𝑓 Isom < , < ((1...(♯‘𝑠)), ran 𝑓))
77		isoeq4 7320	. . . . . . . 8 ⊢ ((1...(♯‘𝑠)) = (1...(𝑁 + 1)) → (𝑓 Isom < , < ((1...(♯‘𝑠)), ran 𝑓) ↔ 𝑓 Isom < , < ((1...(𝑁 + 1)), ran 𝑓)))
78	63, 77	syl 17	. . . . . . 7 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → (𝑓 Isom < , < ((1...(♯‘𝑠)), ran 𝑓) ↔ 𝑓 Isom < , < ((1...(𝑁 + 1)), ran 𝑓)))
79	76, 78	mpbid 231	. . . . . 6 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → 𝑓 Isom < , < ((1...(𝑁 + 1)), ran 𝑓))
80	70, 79	jca 511	. . . . 5 ⊢ (((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) ∧ 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠)) → (𝑓:(1...(𝑁 + 1))–1-1→𝐴 ∧ 𝑓 Isom < , < ((1...(𝑁 + 1)), ran 𝑓)))
81	80	ex 412	. . . 4 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → (𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠) → (𝑓:(1...(𝑁 + 1))–1-1→𝐴 ∧ 𝑓 Isom < , < ((1...(𝑁 + 1)), ran 𝑓))))
82	81	eximdv 1919	. . 3 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → (∃𝑓 𝑓 Isom < , < ((1...(♯‘𝑠)), 𝑠) → ∃𝑓(𝑓:(1...(𝑁 + 1))–1-1→𝐴 ∧ 𝑓 Isom < , < ((1...(𝑁 + 1)), ran 𝑓))))
83	54, 82	mpd 15	. 2 ⊢ ((𝜑 ∧ ((1...(𝑁 + 1)) ≈ 𝑠 ∧ 𝑠 ⊆ 𝐴)) → ∃𝑓(𝑓:(1...(𝑁 + 1))–1-1→𝐴 ∧ 𝑓 Isom < , < ((1...(𝑁 + 1)), ran 𝑓)))
84	41, 83	exlimddv 1937	1 ⊢ (𝜑 → ∃𝑓(𝑓:(1...(𝑁 + 1))–1-1→𝐴 ∧ 𝑓 Isom < , < ((1...(𝑁 + 1)), ran 𝑓)))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 395 = wceq 1540 ∃wex 1780 ∈ wcel 2105 Vcvv 3473 ⊆ wss 3948 class class class wbr 5148 Or wor 5587 ran crn 5677 –1-1→wf1 6540 –onto→wfo 6541 –1-1-onto→wf1o 6542 ‘cfv 6543 Isom wiso 6544 (class class class)co 7412 ≈ cen 8940 ≼ cdom 8941 Fincfn 8943 ℝcr 11113 1c1 11115 + caddc 11117 · cmul 11119 < clt 11253 ≤ cle 11254 − cmin 11449 ℕcn 12217 ℕ₀cn0 12477 ...cfz 13489 ♯chash 14295

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 2702 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7729 ax-cnex 11170 ax-resscn 11171 ax-1cn 11172 ax-icn 11173 ax-addcl 11174 ax-addrcl 11175 ax-mulcl 11176 ax-mulrcl 11177 ax-mulcom 11178 ax-addass 11179 ax-mulass 11180 ax-distr 11181 ax-i2m1 11182 ax-1ne0 11183 ax-1rid 11184 ax-rnegex 11185 ax-rrecex 11186 ax-cnre 11187 ax-pre-lttri 11188 ax-pre-lttrn 11189 ax-pre-ltadd 11190 ax-pre-mulgt0 11191

This theorem depends on definitions: df-bi 206 df-an 396 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 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-rmo 3375 df-reu 3376 df-rab 3432 df-v 3475 df-sbc 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-int 4951 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-se 5632 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6300 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-isom 6552 df-riota 7368 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7860 df-1st 7979 df-2nd 7980 df-frecs 8270 df-wrecs 8301 df-recs 8375 df-rdg 8414 df-1o 8470 df-oadd 8474 df-er 8707 df-en 8944 df-dom 8945 df-sdom 8946 df-fin 8947 df-oi 9509 df-card 9938 df-pnf 11255 df-mnf 11256 df-xr 11257 df-ltxr 11258 df-le 11259 df-sub 11451 df-neg 11452 df-nn 12218 df-n0 12478 df-xnn0 12550 df-z 12564 df-uz 12828 df-fz 13490 df-hash 14296

This theorem is referenced by: erdsze2 34495

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