Theorem liminfval2 42069

Description: The superior limit, relativized to an unbounded set. (Contributed by Glauco Siliprandi, 2-Jan-2022.)

Hypotheses

Ref	Expression
liminfval2.1	⊢ 𝐺 = (𝑘 ∈ ℝ ↦ inf(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < ))
liminfval2.2	⊢ (𝜑 → 𝐹 ∈ 𝑉)
liminfval2.3	⊢ (𝜑 → 𝐴 ⊆ ℝ)
liminfval2.4	⊢ (𝜑 → sup(𝐴, ℝ*, < ) = +∞)

Assertion

Ref	Expression
liminfval2	⊢ (𝜑 → (lim inf‘𝐹) = sup((𝐺 “ 𝐴), ℝ*, < ))

Distinct variable group:   𝑘,𝐹

Allowed substitution hints:   𝜑(𝑘)   𝐴(𝑘)   𝐺(𝑘)   𝑉(𝑘)

Proof of Theorem liminfval2

Dummy variables 𝑛 𝑥 𝑗 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		liminfval2.2	. . 3 ⊢ (𝜑 → 𝐹 ∈ 𝑉)
2		liminfval2.1	. . . . 5 ⊢ 𝐺 = (𝑘 ∈ ℝ ↦ inf(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < ))
3		oveq1 7163	. . . . . . . . 9 ⊢ (𝑘 = 𝑗 → (𝑘[,)+∞) = (𝑗[,)+∞))
4	3	imaeq2d 5929	. . . . . . . 8 ⊢ (𝑘 = 𝑗 → (𝐹 “ (𝑘[,)+∞)) = (𝐹 “ (𝑗[,)+∞)))
5	4	ineq1d 4188	. . . . . . 7 ⊢ (𝑘 = 𝑗 → ((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*) = ((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*))
6	5	infeq1d 8941	. . . . . 6 ⊢ (𝑘 = 𝑗 → inf(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < ) = inf(((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*), ℝ*, < ))
7	6	cbvmptv 5169	. . . . 5 ⊢ (𝑘 ∈ ℝ ↦ inf(((𝐹 “ (𝑘[,)+∞)) ∩ ℝ*), ℝ*, < )) = (𝑗 ∈ ℝ ↦ inf(((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*), ℝ*, < ))
8	2, 7	eqtri 2844	. . . 4 ⊢ 𝐺 = (𝑗 ∈ ℝ ↦ inf(((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*), ℝ*, < ))
9	8	liminfval 42060	. . 3 ⊢ (𝐹 ∈ 𝑉 → (lim inf‘𝐹) = sup(ran 𝐺, ℝ*, < ))
10	1, 9	syl 17	. 2 ⊢ (𝜑 → (lim inf‘𝐹) = sup(ran 𝐺, ℝ*, < ))
11		liminfval2.4	. . . . . . 7 ⊢ (𝜑 → sup(𝐴, ℝ*, < ) = +∞)
12		liminfval2.3	. . . . . . . . 9 ⊢ (𝜑 → 𝐴 ⊆ ℝ)
13	12	ssrexr 41726	. . . . . . . 8 ⊢ (𝜑 → 𝐴 ⊆ ℝ*)
14		supxrunb1 12713	. . . . . . . 8 ⊢ (𝐴 ⊆ ℝ* → (∀𝑛 ∈ ℝ ∃𝑥 ∈ 𝐴 𝑛 ≤ 𝑥 ↔ sup(𝐴, ℝ*, < ) = +∞))
15	13, 14	syl 17	. . . . . . 7 ⊢ (𝜑 → (∀𝑛 ∈ ℝ ∃𝑥 ∈ 𝐴 𝑛 ≤ 𝑥 ↔ sup(𝐴, ℝ*, < ) = +∞))
16	11, 15	mpbird 259	. . . . . 6 ⊢ (𝜑 → ∀𝑛 ∈ ℝ ∃𝑥 ∈ 𝐴 𝑛 ≤ 𝑥)
17	8	liminfgf 42059	. . . . . . . . . . 11 ⊢ 𝐺:ℝ⟶ℝ*
18	17	ffvelrni 6850	. . . . . . . . . 10 ⊢ (𝑛 ∈ ℝ → (𝐺‘𝑛) ∈ ℝ*)
19	18	ad2antlr 725	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → (𝐺‘𝑛) ∈ ℝ*)
20		simpll 765	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → 𝜑)
21		simprl 769	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → 𝑥 ∈ 𝐴)
22	12	sselda 3967	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ ℝ)
23	17	ffvelrni 6850	. . . . . . . . . . 11 ⊢ (𝑥 ∈ ℝ → (𝐺‘𝑥) ∈ ℝ*)
24	22, 23	syl 17	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝐺‘𝑥) ∈ ℝ*)
25	20, 21, 24	syl2anc 586	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → (𝐺‘𝑥) ∈ ℝ*)
26		imassrn 5940	. . . . . . . . . . . 12 ⊢ (𝐺 “ 𝐴) ⊆ ran 𝐺
27		frn 6520	. . . . . . . . . . . . 13 ⊢ (𝐺:ℝ⟶ℝ* → ran 𝐺 ⊆ ℝ*)
28	17, 27	ax-mp 5	. . . . . . . . . . . 12 ⊢ ran 𝐺 ⊆ ℝ*
29	26, 28	sstri 3976	. . . . . . . . . . 11 ⊢ (𝐺 “ 𝐴) ⊆ ℝ*
30		supxrcl 12709	. . . . . . . . . . 11 ⊢ ((𝐺 “ 𝐴) ⊆ ℝ* → sup((𝐺 “ 𝐴), ℝ*, < ) ∈ ℝ*)
31	29, 30	ax-mp 5	. . . . . . . . . 10 ⊢ sup((𝐺 “ 𝐴), ℝ*, < ) ∈ ℝ*
32	31	a1i 11	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → sup((𝐺 “ 𝐴), ℝ*, < ) ∈ ℝ*)
33		simplr 767	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → 𝑛 ∈ ℝ)
34	20, 21, 22	syl2anc 586	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → 𝑥 ∈ ℝ)
35		simprr 771	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → 𝑛 ≤ 𝑥)
36		liminfgord 42055	. . . . . . . . . . 11 ⊢ ((𝑛 ∈ ℝ ∧ 𝑥 ∈ ℝ ∧ 𝑛 ≤ 𝑥) → inf(((𝐹 “ (𝑛[,)+∞)) ∩ ℝ*), ℝ*, < ) ≤ inf(((𝐹 “ (𝑥[,)+∞)) ∩ ℝ*), ℝ*, < ))
37	33, 34, 35, 36	syl3anc 1367	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → inf(((𝐹 “ (𝑛[,)+∞)) ∩ ℝ*), ℝ*, < ) ≤ inf(((𝐹 “ (𝑥[,)+∞)) ∩ ℝ*), ℝ*, < ))
38	8	liminfgval 42063	. . . . . . . . . . . . 13 ⊢ (𝑛 ∈ ℝ → (𝐺‘𝑛) = inf(((𝐹 “ (𝑛[,)+∞)) ∩ ℝ*), ℝ*, < ))
39	38	ad2antlr 725	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ 𝑥 ∈ 𝐴) → (𝐺‘𝑛) = inf(((𝐹 “ (𝑛[,)+∞)) ∩ ℝ*), ℝ*, < ))
40	8	liminfgval 42063	. . . . . . . . . . . . . 14 ⊢ (𝑥 ∈ ℝ → (𝐺‘𝑥) = inf(((𝐹 “ (𝑥[,)+∞)) ∩ ℝ*), ℝ*, < ))
41	22, 40	syl 17	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝐺‘𝑥) = inf(((𝐹 “ (𝑥[,)+∞)) ∩ ℝ*), ℝ*, < ))
42	41	adantlr 713	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ 𝑥 ∈ 𝐴) → (𝐺‘𝑥) = inf(((𝐹 “ (𝑥[,)+∞)) ∩ ℝ*), ℝ*, < ))
43	39, 42	breq12d 5079	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ 𝑥 ∈ 𝐴) → ((𝐺‘𝑛) ≤ (𝐺‘𝑥) ↔ inf(((𝐹 “ (𝑛[,)+∞)) ∩ ℝ*), ℝ*, < ) ≤ inf(((𝐹 “ (𝑥[,)+∞)) ∩ ℝ*), ℝ*, < )))
44	43	adantrr 715	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → ((𝐺‘𝑛) ≤ (𝐺‘𝑥) ↔ inf(((𝐹 “ (𝑛[,)+∞)) ∩ ℝ*), ℝ*, < ) ≤ inf(((𝐹 “ (𝑥[,)+∞)) ∩ ℝ*), ℝ*, < )))
45	37, 44	mpbird 259	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → (𝐺‘𝑛) ≤ (𝐺‘𝑥))
46	29	a1i 11	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝐺 “ 𝐴) ⊆ ℝ*)
47		nfv 1915	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑗𝜑
48		inss2 4206	. . . . . . . . . . . . . . . 16 ⊢ ((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*) ⊆ ℝ*
49		infxrcl 12727	. . . . . . . . . . . . . . . 16 ⊢ (((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*) ⊆ ℝ* → inf(((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*), ℝ*, < ) ∈ ℝ*)
50	48, 49	ax-mp 5	. . . . . . . . . . . . . . 15 ⊢ inf(((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*), ℝ*, < ) ∈ ℝ*
51	50	a1i 11	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑗 ∈ ℝ) → inf(((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*), ℝ*, < ) ∈ ℝ*)
52	47, 51, 8	fnmptd 6489	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝐺 Fn ℝ)
53	52	adantr 483	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐺 Fn ℝ)
54		simpr 487	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ 𝐴)
55	53, 22, 54	fnfvimad 6996	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝐺‘𝑥) ∈ (𝐺 “ 𝐴))
56		supxrub 12718	. . . . . . . . . . 11 ⊢ (((𝐺 “ 𝐴) ⊆ ℝ* ∧ (𝐺‘𝑥) ∈ (𝐺 “ 𝐴)) → (𝐺‘𝑥) ≤ sup((𝐺 “ 𝐴), ℝ*, < ))
57	46, 55, 56	syl2anc 586	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝐺‘𝑥) ≤ sup((𝐺 “ 𝐴), ℝ*, < ))
58	20, 21, 57	syl2anc 586	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → (𝐺‘𝑥) ≤ sup((𝐺 “ 𝐴), ℝ*, < ))
59	19, 25, 32, 45, 58	xrletrd 12556	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑛 ∈ ℝ) ∧ (𝑥 ∈ 𝐴 ∧ 𝑛 ≤ 𝑥)) → (𝐺‘𝑛) ≤ sup((𝐺 “ 𝐴), ℝ*, < ))
60	59	rexlimdvaa 3285	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑛 ∈ ℝ) → (∃𝑥 ∈ 𝐴 𝑛 ≤ 𝑥 → (𝐺‘𝑛) ≤ sup((𝐺 “ 𝐴), ℝ*, < )))
61	60	ralimdva 3177	. . . . . 6 ⊢ (𝜑 → (∀𝑛 ∈ ℝ ∃𝑥 ∈ 𝐴 𝑛 ≤ 𝑥 → ∀𝑛 ∈ ℝ (𝐺‘𝑛) ≤ sup((𝐺 “ 𝐴), ℝ*, < )))
62	16, 61	mpd 15	. . . . 5 ⊢ (𝜑 → ∀𝑛 ∈ ℝ (𝐺‘𝑛) ≤ sup((𝐺 “ 𝐴), ℝ*, < ))
63		xrltso 12535	. . . . . . . . 9 ⊢ < Or ℝ*
64	63	infex 8957	. . . . . . . 8 ⊢ inf(((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*), ℝ*, < ) ∈ V
65	64	rgenw 3150	. . . . . . 7 ⊢ ∀𝑗 ∈ ℝ inf(((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*), ℝ*, < ) ∈ V
66	8	fnmpt 6488	. . . . . . 7 ⊢ (∀𝑗 ∈ ℝ inf(((𝐹 “ (𝑗[,)+∞)) ∩ ℝ*), ℝ*, < ) ∈ V → 𝐺 Fn ℝ)
67	65, 66	ax-mp 5	. . . . . 6 ⊢ 𝐺 Fn ℝ
68		breq1 5069	. . . . . . 7 ⊢ (𝑥 = (𝐺‘𝑛) → (𝑥 ≤ sup((𝐺 “ 𝐴), ℝ*, < ) ↔ (𝐺‘𝑛) ≤ sup((𝐺 “ 𝐴), ℝ*, < )))
69	68	ralrn 6854	. . . . . 6 ⊢ (𝐺 Fn ℝ → (∀𝑥 ∈ ran 𝐺 𝑥 ≤ sup((𝐺 “ 𝐴), ℝ*, < ) ↔ ∀𝑛 ∈ ℝ (𝐺‘𝑛) ≤ sup((𝐺 “ 𝐴), ℝ*, < )))
70	67, 69	ax-mp 5	. . . . 5 ⊢ (∀𝑥 ∈ ran 𝐺 𝑥 ≤ sup((𝐺 “ 𝐴), ℝ*, < ) ↔ ∀𝑛 ∈ ℝ (𝐺‘𝑛) ≤ sup((𝐺 “ 𝐴), ℝ*, < ))
71	62, 70	sylibr 236	. . . 4 ⊢ (𝜑 → ∀𝑥 ∈ ran 𝐺 𝑥 ≤ sup((𝐺 “ 𝐴), ℝ*, < ))
72		supxrleub 12720	. . . . 5 ⊢ ((ran 𝐺 ⊆ ℝ* ∧ sup((𝐺 “ 𝐴), ℝ*, < ) ∈ ℝ*) → (sup(ran 𝐺, ℝ*, < ) ≤ sup((𝐺 “ 𝐴), ℝ*, < ) ↔ ∀𝑥 ∈ ran 𝐺 𝑥 ≤ sup((𝐺 “ 𝐴), ℝ*, < )))
73	28, 31, 72	mp2an 690	. . . 4 ⊢ (sup(ran 𝐺, ℝ*, < ) ≤ sup((𝐺 “ 𝐴), ℝ*, < ) ↔ ∀𝑥 ∈ ran 𝐺 𝑥 ≤ sup((𝐺 “ 𝐴), ℝ*, < ))
74	71, 73	sylibr 236	. . 3 ⊢ (𝜑 → sup(ran 𝐺, ℝ*, < ) ≤ sup((𝐺 “ 𝐴), ℝ*, < ))
75	26	a1i 11	. . . 4 ⊢ (𝜑 → (𝐺 “ 𝐴) ⊆ ran 𝐺)
76	28	a1i 11	. . . 4 ⊢ (𝜑 → ran 𝐺 ⊆ ℝ*)
77		supxrss 12726	. . . 4 ⊢ (((𝐺 “ 𝐴) ⊆ ran 𝐺 ∧ ran 𝐺 ⊆ ℝ*) → sup((𝐺 “ 𝐴), ℝ*, < ) ≤ sup(ran 𝐺, ℝ*, < ))
78	75, 76, 77	syl2anc 586	. . 3 ⊢ (𝜑 → sup((𝐺 “ 𝐴), ℝ*, < ) ≤ sup(ran 𝐺, ℝ*, < ))
79		supxrcl 12709	. . . . 5 ⊢ (ran 𝐺 ⊆ ℝ* → sup(ran 𝐺, ℝ*, < ) ∈ ℝ*)
80	28, 79	ax-mp 5	. . . 4 ⊢ sup(ran 𝐺, ℝ*, < ) ∈ ℝ*
81		xrletri3 12548	. . . 4 ⊢ ((sup(ran 𝐺, ℝ*, < ) ∈ ℝ* ∧ sup((𝐺 “ 𝐴), ℝ*, < ) ∈ ℝ*) → (sup(ran 𝐺, ℝ*, < ) = sup((𝐺 “ 𝐴), ℝ*, < ) ↔ (sup(ran 𝐺, ℝ*, < ) ≤ sup((𝐺 “ 𝐴), ℝ*, < ) ∧ sup((𝐺 “ 𝐴), ℝ*, < ) ≤ sup(ran 𝐺, ℝ*, < ))))
82	80, 31, 81	mp2an 690	. . 3 ⊢ (sup(ran 𝐺, ℝ*, < ) = sup((𝐺 “ 𝐴), ℝ*, < ) ↔ (sup(ran 𝐺, ℝ*, < ) ≤ sup((𝐺 “ 𝐴), ℝ*, < ) ∧ sup((𝐺 “ 𝐴), ℝ*, < ) ≤ sup(ran 𝐺, ℝ*, < )))
83	74, 78, 82	sylanbrc 585	. 2 ⊢ (𝜑 → sup(ran 𝐺, ℝ*, < ) = sup((𝐺 “ 𝐴), ℝ*, < ))
84	10, 83	eqtrd 2856	1 ⊢ (𝜑 → (lim inf‘𝐹) = sup((𝐺 “ 𝐴), ℝ*, < ))

Syntax hints:   → wi 4   ↔ wb 208   ∧ wa 398   = wceq 1537   ∈ wcel 2114  ∀wral 3138  ∃wrex 3139  Vcvv 3494   ∩ cin 3935   ⊆ wss 3936   class class class wbr 5066   ↦ cmpt 5146  ran crn 5556   “ cima 5558   Fn wfn 6350  ⟶wf 6351  ‘cfv 6355  (class class class)co 7156  supcsup 8904  infcinf 8905  ℝcr 10536  +∞cpnf 10672  ℝ^*cxr 10674   < clt 10675   ≤ cle 10676  [,)cico 12741  lim infclsi 42052

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 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2793  ax-sep 5203  ax-nul 5210  ax-pow 5266  ax-pr 5330  ax-un 7461  ax-cnex 10593  ax-resscn 10594  ax-1cn 10595  ax-icn 10596  ax-addcl 10597  ax-addrcl 10598  ax-mulcl 10599  ax-mulrcl 10600  ax-mulcom 10601  ax-addass 10602  ax-mulass 10603  ax-distr 10604  ax-i2m1 10605  ax-1ne0 10606  ax-1rid 10607  ax-rnegex 10608  ax-rrecex 10609  ax-cnre 10610  ax-pre-lttri 10611  ax-pre-lttrn 10612  ax-pre-ltadd 10613  ax-pre-mulgt0 10614  ax-pre-sup 10615

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1540  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-nel 3124  df-ral 3143  df-rex 3144  df-reu 3145  df-rmo 3146  df-rab 3147  df-v 3496  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4839  df-iun 4921  df-br 5067  df-opab 5129  df-mpt 5147  df-id 5460  df-po 5474  df-so 5475  df-xp 5561  df-rel 5562  df-cnv 5563  df-co 5564  df-dm 5565  df-rn 5566  df-res 5567  df-ima 5568  df-iota 6314  df-fun 6357  df-fn 6358  df-f 6359  df-f1 6360  df-fo 6361  df-f1o 6362  df-fv 6363  df-riota 7114  df-ov 7159  df-oprab 7160  df-mpo 7161  df-1st 7689  df-2nd 7690  df-er 8289  df-en 8510  df-dom 8511  df-sdom 8512  df-sup 8906  df-inf 8907  df-pnf 10677  df-mnf 10678  df-xr 10679  df-ltxr 10680  df-le 10681  df-sub 10872  df-neg 10873  df-ico 12745  df-liminf 42053

This theorem is referenced by:  liminfresico  42072