Theorem equivcau 23098

Description: If the metric 𝐷 is "strongly finer" than 𝐶 (meaning that there is a positive real constant 𝑅 such that 𝐶(𝑥, 𝑦) ≤ 𝑅 · 𝐷(𝑥, 𝑦)), all the 𝐷-Cauchy sequences are also 𝐶-Cauchy. (Using this theorem twice in each direction states that if two metrics are strongly equivalent, then they have the same Cauchy sequences.) (Contributed by Mario Carneiro, 14-Sep-2015.)

Hypotheses

Ref	Expression
equivcau.1	⊢ (𝜑 → 𝐶 ∈ (Met‘𝑋))
equivcau.2	⊢ (𝜑 → 𝐷 ∈ (Met‘𝑋))
equivcau.3	⊢ (𝜑 → 𝑅 ∈ ℝ+)
equivcau.4	⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ 𝑋)) → (𝑥𝐶𝑦) ≤ (𝑅 · (𝑥𝐷𝑦)))

Assertion

Ref	Expression
equivcau	⊢ (𝜑 → (Cau‘𝐷) ⊆ (Cau‘𝐶))

Distinct variable groups:   𝑥,𝑦,𝐶   𝑥,𝐷,𝑦   𝜑,𝑥,𝑦   𝑥,𝑅,𝑦   𝑥,𝑋,𝑦

Proof of Theorem equivcau

Dummy variables 𝑓 𝑘 𝑟 𝑠 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpr 477	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) → 𝑟 ∈ ℝ+)
2		equivcau.3	. . . . . . . 8 ⊢ (𝜑 → 𝑅 ∈ ℝ+)
3	2	ad2antrr 762	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) → 𝑅 ∈ ℝ+)
4	1, 3	rpdivcld 11889	. . . . . 6 ⊢ (((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) → (𝑟 / 𝑅) ∈ ℝ+)
5		oveq2 6658	. . . . . . . . 9 ⊢ (𝑠 = (𝑟 / 𝑅) → ((𝑓‘𝑘)(ball‘𝐷)𝑠) = ((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))
6	5	feq3d 6032	. . . . . . . 8 ⊢ (𝑠 = (𝑟 / 𝑅) → ((𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)𝑠) ↔ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅))))
7	6	rexbidv 3052	. . . . . . 7 ⊢ (𝑠 = (𝑟 / 𝑅) → (∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)𝑠) ↔ ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅))))
8	7	rspcv 3305	. . . . . 6 ⊢ ((𝑟 / 𝑅) ∈ ℝ+ → (∀𝑠 ∈ ℝ+ ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)𝑠) → ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅))))
9	4, 8	syl 17	. . . . 5 ⊢ (((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) → (∀𝑠 ∈ ℝ+ ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)𝑠) → ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅))))
10		simprr 796	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑘 ∈ ℤ ∧ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))) → (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))
11		elpmi 7876	. . . . . . . . . . . 12 ⊢ (𝑓 ∈ (𝑋 ↑pm ℂ) → (𝑓:dom 𝑓⟶𝑋 ∧ dom 𝑓 ⊆ ℂ))
12	11	simpld 475	. . . . . . . . . . 11 ⊢ (𝑓 ∈ (𝑋 ↑pm ℂ) → 𝑓:dom 𝑓⟶𝑋)
13	12	ad3antlr 767	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑘 ∈ ℤ ∧ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))) → 𝑓:dom 𝑓⟶𝑋)
14		resss 5422	. . . . . . . . . . . 12 ⊢ (𝑓 ↾ (ℤ≥‘𝑘)) ⊆ 𝑓
15		dmss 5323	. . . . . . . . . . . 12 ⊢ ((𝑓 ↾ (ℤ≥‘𝑘)) ⊆ 𝑓 → dom (𝑓 ↾ (ℤ≥‘𝑘)) ⊆ dom 𝑓)
16	14, 15	ax-mp 5	. . . . . . . . . . 11 ⊢ dom (𝑓 ↾ (ℤ≥‘𝑘)) ⊆ dom 𝑓
17		uzid 11702	. . . . . . . . . . . . 13 ⊢ (𝑘 ∈ ℤ → 𝑘 ∈ (ℤ≥‘𝑘))
18	17	ad2antrl 764	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑘 ∈ ℤ ∧ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))) → 𝑘 ∈ (ℤ≥‘𝑘))
19		fdm 6051	. . . . . . . . . . . . 13 ⊢ ((𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)) → dom (𝑓 ↾ (ℤ≥‘𝑘)) = (ℤ≥‘𝑘))
20	19	ad2antll 765	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑘 ∈ ℤ ∧ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))) → dom (𝑓 ↾ (ℤ≥‘𝑘)) = (ℤ≥‘𝑘))
21	18, 20	eleqtrrd 2704	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑘 ∈ ℤ ∧ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))) → 𝑘 ∈ dom (𝑓 ↾ (ℤ≥‘𝑘)))
22	16, 21	sseldi 3601	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑘 ∈ ℤ ∧ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))) → 𝑘 ∈ dom 𝑓)
23	13, 22	ffvelrnd 6360	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑘 ∈ ℤ ∧ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))) → (𝑓‘𝑘) ∈ 𝑋)
24		eqid 2622	. . . . . . . . . . . . 13 ⊢ (MetOpen‘𝐶) = (MetOpen‘𝐶)
25		eqid 2622	. . . . . . . . . . . . 13 ⊢ (MetOpen‘𝐷) = (MetOpen‘𝐷)
26		equivcau.1	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝐶 ∈ (Met‘𝑋))
27		equivcau.2	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝐷 ∈ (Met‘𝑋))
28		equivcau.4	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ 𝑋)) → (𝑥𝐶𝑦) ≤ (𝑅 · (𝑥𝐷𝑦)))
29	24, 25, 26, 27, 2, 28	metss2lem 22316	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑟 ∈ ℝ+)) → (𝑥(ball‘𝐷)(𝑟 / 𝑅)) ⊆ (𝑥(ball‘𝐶)𝑟))
30	29	expr 643	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝑟 ∈ ℝ+ → (𝑥(ball‘𝐷)(𝑟 / 𝑅)) ⊆ (𝑥(ball‘𝐶)𝑟)))
31	30	ralrimiva 2966	. . . . . . . . . 10 ⊢ (𝜑 → ∀𝑥 ∈ 𝑋 (𝑟 ∈ ℝ+ → (𝑥(ball‘𝐷)(𝑟 / 𝑅)) ⊆ (𝑥(ball‘𝐶)𝑟)))
32	31	ad3antrrr 766	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑘 ∈ ℤ ∧ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))) → ∀𝑥 ∈ 𝑋 (𝑟 ∈ ℝ+ → (𝑥(ball‘𝐷)(𝑟 / 𝑅)) ⊆ (𝑥(ball‘𝐶)𝑟)))
33		simplr 792	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑘 ∈ ℤ ∧ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))) → 𝑟 ∈ ℝ+)
34		oveq1 6657	. . . . . . . . . . . 12 ⊢ (𝑥 = (𝑓‘𝑘) → (𝑥(ball‘𝐷)(𝑟 / 𝑅)) = ((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))
35		oveq1 6657	. . . . . . . . . . . 12 ⊢ (𝑥 = (𝑓‘𝑘) → (𝑥(ball‘𝐶)𝑟) = ((𝑓‘𝑘)(ball‘𝐶)𝑟))
36	34, 35	sseq12d 3634	. . . . . . . . . . 11 ⊢ (𝑥 = (𝑓‘𝑘) → ((𝑥(ball‘𝐷)(𝑟 / 𝑅)) ⊆ (𝑥(ball‘𝐶)𝑟) ↔ ((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)) ⊆ ((𝑓‘𝑘)(ball‘𝐶)𝑟)))
37	36	imbi2d 330	. . . . . . . . . 10 ⊢ (𝑥 = (𝑓‘𝑘) → ((𝑟 ∈ ℝ+ → (𝑥(ball‘𝐷)(𝑟 / 𝑅)) ⊆ (𝑥(ball‘𝐶)𝑟)) ↔ (𝑟 ∈ ℝ+ → ((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)) ⊆ ((𝑓‘𝑘)(ball‘𝐶)𝑟))))
38	37	rspcv 3305	. . . . . . . . 9 ⊢ ((𝑓‘𝑘) ∈ 𝑋 → (∀𝑥 ∈ 𝑋 (𝑟 ∈ ℝ+ → (𝑥(ball‘𝐷)(𝑟 / 𝑅)) ⊆ (𝑥(ball‘𝐶)𝑟)) → (𝑟 ∈ ℝ+ → ((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)) ⊆ ((𝑓‘𝑘)(ball‘𝐶)𝑟))))
39	23, 32, 33, 38	syl3c 66	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑘 ∈ ℤ ∧ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))) → ((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)) ⊆ ((𝑓‘𝑘)(ball‘𝐶)𝑟))
40	10, 39	fssd 6057	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) ∧ (𝑘 ∈ ℤ ∧ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)))) → (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐶)𝑟))
41	40	expr 643	. . . . . 6 ⊢ ((((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) ∧ 𝑘 ∈ ℤ) → ((𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)) → (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐶)𝑟)))
42	41	reximdva 3017	. . . . 5 ⊢ (((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) → (∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)(𝑟 / 𝑅)) → ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐶)𝑟)))
43	9, 42	syld 47	. . . 4 ⊢ (((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) ∧ 𝑟 ∈ ℝ+) → (∀𝑠 ∈ ℝ+ ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)𝑠) → ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐶)𝑟)))
44	43	ralrimdva 2969	. . 3 ⊢ ((𝜑 ∧ 𝑓 ∈ (𝑋 ↑pm ℂ)) → (∀𝑠 ∈ ℝ+ ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)𝑠) → ∀𝑟 ∈ ℝ+ ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐶)𝑟)))
45	44	ss2rabdv 3683	. 2 ⊢ (𝜑 → {𝑓 ∈ (𝑋 ↑pm ℂ) ∣ ∀𝑠 ∈ ℝ+ ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)𝑠)} ⊆ {𝑓 ∈ (𝑋 ↑pm ℂ) ∣ ∀𝑟 ∈ ℝ+ ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐶)𝑟)})
46		metxmet 22139	. . 3 ⊢ (𝐷 ∈ (Met‘𝑋) → 𝐷 ∈ (∞Met‘𝑋))
47		caufval 23073	. . 3 ⊢ (𝐷 ∈ (∞Met‘𝑋) → (Cau‘𝐷) = {𝑓 ∈ (𝑋 ↑pm ℂ) ∣ ∀𝑠 ∈ ℝ+ ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)𝑠)})
48	27, 46, 47	3syl 18	. 2 ⊢ (𝜑 → (Cau‘𝐷) = {𝑓 ∈ (𝑋 ↑pm ℂ) ∣ ∀𝑠 ∈ ℝ+ ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐷)𝑠)})
49		metxmet 22139	. . 3 ⊢ (𝐶 ∈ (Met‘𝑋) → 𝐶 ∈ (∞Met‘𝑋))
50		caufval 23073	. . 3 ⊢ (𝐶 ∈ (∞Met‘𝑋) → (Cau‘𝐶) = {𝑓 ∈ (𝑋 ↑pm ℂ) ∣ ∀𝑟 ∈ ℝ+ ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐶)𝑟)})
51	26, 49, 50	3syl 18	. 2 ⊢ (𝜑 → (Cau‘𝐶) = {𝑓 ∈ (𝑋 ↑pm ℂ) ∣ ∀𝑟 ∈ ℝ+ ∃𝑘 ∈ ℤ (𝑓 ↾ (ℤ≥‘𝑘)):(ℤ≥‘𝑘)⟶((𝑓‘𝑘)(ball‘𝐶)𝑟)})
52	45, 48, 51	3sstr4d 3648	1 ⊢ (𝜑 → (Cau‘𝐷) ⊆ (Cau‘𝐶))

Syntax hints:   → wi 4   ∧ wa 384   = wceq 1483   ∈ wcel 1990  ∀wral 2912  ∃wrex 2913  {crab 2916   ⊆ wss 3574   class class class wbr 4653  dom cdm 5114   ↾ cres 5116  ⟶wf 5884  ‘cfv 5888  (class class class)co 6650   ↑_pm cpm 7858  ℂcc 9934   · cmul 9941   ≤ cle 10075   / cdiv 10684  ℤcz 11377  ℤ_≥cuz 11687  ℝ⁺crp 11832  ∞Metcxmt 19731  Metcme 19732  ballcbl 19733  MetOpencmopn 19736  Caucca 23051

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-cnex 9992  ax-resscn 9993  ax-1cn 9994  ax-icn 9995  ax-addcl 9996  ax-addrcl 9997  ax-mulcl 9998  ax-mulrcl 9999  ax-mulcom 10000  ax-addass 10001  ax-mulass 10002  ax-distr 10003  ax-i2m1 10004  ax-1ne0 10005  ax-1rid 10006  ax-rnegex 10007  ax-rrecex 10008  ax-cnre 10009  ax-pre-lttri 10010  ax-pre-lttrn 10011  ax-pre-ltadd 10012  ax-pre-mulgt0 10013

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-nel 2898  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-id 5024  df-po 5035  df-so 5036  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-1st 7168  df-2nd 7169  df-er 7742  df-map 7859  df-pm 7860  df-en 7956  df-dom 7957  df-sdom 7958  df-pnf 10076  df-mnf 10077  df-xr 10078  df-ltxr 10079  df-le 10080  df-sub 10268  df-neg 10269  df-div 10685  df-z 11378  df-uz 11688  df-rp 11833  df-xadd 11947  df-psmet 19738  df-xmet 19739  df-met 19740  df-bl 19741  df-cau 23054

This theorem is referenced by: (None)