txcnp - Intuitionistic Logic Explorer

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Theorem txcnp 14507

Description: If two functions are continuous at 𝐷, then the ordered pair of them is continuous at 𝐷 into the product topology. (Contributed by Mario Carneiro, 9-Aug-2014.) (Revised by Mario Carneiro, 22-Aug-2015.)

**Hypotheses**
Ref	Expression
txcnp.4	⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋))
txcnp.5	⊢ (𝜑 → 𝐾 ∈ (TopOn‘𝑌))
txcnp.6	⊢ (𝜑 → 𝐿 ∈ (TopOn‘𝑍))
txcnp.7	⊢ (𝜑 → 𝐷 ∈ 𝑋)
txcnp.8	⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ ((𝐽 CnP 𝐾)‘𝐷))
txcnp.9	⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ ((𝐽 CnP 𝐿)‘𝐷))

**Assertion**
Ref	Expression
txcnp	⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) ∈ ((𝐽 CnP (𝐾 ×_t 𝐿))‘𝐷))

Distinct variable groups: 𝜑,𝑥 𝑥,𝑌 𝑥,𝑍 𝑥,𝐷 𝑥,𝑋 Allowed substitution hints: 𝐴(𝑥) 𝐵(𝑥) 𝐽(𝑥) 𝐾(𝑥) 𝐿(𝑥)

Proof of Theorem txcnp Dummy variables 𝑠 𝑟 𝑡 𝑣 𝑤 𝑦 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		txcnp.4	. . . . . 6 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋))
2		txcnp.5	. . . . . 6 ⊢ (𝜑 → 𝐾 ∈ (TopOn‘𝑌))
3		txcnp.8	. . . . . 6 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ ((𝐽 CnP 𝐾)‘𝐷))
4		cnpf2 14443	. . . . . 6 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌) ∧ (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ ((𝐽 CnP 𝐾)‘𝐷)) → (𝑥 ∈ 𝑋 ↦ 𝐴):𝑋⟶𝑌)
5	1, 2, 3, 4	syl3anc 1249	. . . . 5 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐴):𝑋⟶𝑌)
6	5	fvmptelcdm 5715	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ 𝑌)
7		txcnp.6	. . . . . 6 ⊢ (𝜑 → 𝐿 ∈ (TopOn‘𝑍))
8		txcnp.9	. . . . . 6 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ ((𝐽 CnP 𝐿)‘𝐷))
9		cnpf2 14443	. . . . . 6 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐿 ∈ (TopOn‘𝑍) ∧ (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ ((𝐽 CnP 𝐿)‘𝐷)) → (𝑥 ∈ 𝑋 ↦ 𝐵):𝑋⟶𝑍)
10	1, 7, 8, 9	syl3anc 1249	. . . . 5 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐵):𝑋⟶𝑍)
11	10	fvmptelcdm 5715	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐵 ∈ 𝑍)
12	6, 11	opelxpd 4696	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ⟨𝐴, 𝐵⟩ ∈ (𝑌 × 𝑍))
13	12	fmpttd 5717	. 2 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩):𝑋⟶(𝑌 × 𝑍))
14		txcnp.7	. . . . . . . . 9 ⊢ (𝜑 → 𝐷 ∈ 𝑋)
15		simpr 110	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝑥 ∈ 𝑋)
16	12	elexd 2776	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ⟨𝐴, 𝐵⟩ ∈ V)
17		eqid 2196	. . . . . . . . . . . . 13 ⊢ (𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) = (𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)
18	17	fvmpt2 5645	. . . . . . . . . . . 12 ⊢ ((𝑥 ∈ 𝑋 ∧ ⟨𝐴, 𝐵⟩ ∈ V) → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑥) = ⟨𝐴, 𝐵⟩)
19	15, 16, 18	syl2anc 411	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑥) = ⟨𝐴, 𝐵⟩)
20		eqid 2196	. . . . . . . . . . . . . 14 ⊢ (𝑥 ∈ 𝑋 ↦ 𝐴) = (𝑥 ∈ 𝑋 ↦ 𝐴)
21	20	fvmpt2 5645	. . . . . . . . . . . . 13 ⊢ ((𝑥 ∈ 𝑋 ∧ 𝐴 ∈ 𝑌) → ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥) = 𝐴)
22	15, 6, 21	syl2anc 411	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥) = 𝐴)
23		eqid 2196	. . . . . . . . . . . . . 14 ⊢ (𝑥 ∈ 𝑋 ↦ 𝐵) = (𝑥 ∈ 𝑋 ↦ 𝐵)
24	23	fvmpt2 5645	. . . . . . . . . . . . 13 ⊢ ((𝑥 ∈ 𝑋 ∧ 𝐵 ∈ 𝑍) → ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥) = 𝐵)
25	15, 11, 24	syl2anc 411	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥) = 𝐵)
26	22, 25	opeq12d 3816	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥)⟩ = ⟨𝐴, 𝐵⟩)
27	19, 26	eqtr4d 2232	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑥) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥)⟩)
28	27	ralrimiva 2570	. . . . . . . . 9 ⊢ (𝜑 → ∀𝑥 ∈ 𝑋 ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑥) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥)⟩)
29		nffvmpt1 5569	. . . . . . . . . . 11 ⊢ Ⅎ𝑥((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷)
30		nffvmpt1 5569	. . . . . . . . . . . 12 ⊢ Ⅎ𝑥((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷)
31		nffvmpt1 5569	. . . . . . . . . . . 12 ⊢ Ⅎ𝑥((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷)
32	30, 31	nfop 3824	. . . . . . . . . . 11 ⊢ Ⅎ𝑥⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷)⟩
33	29, 32	nfeq 2347	. . . . . . . . . 10 ⊢ Ⅎ𝑥((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷)⟩
34		fveq2 5558	. . . . . . . . . . 11 ⊢ (𝑥 = 𝐷 → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑥) = ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷))
35		fveq2 5558	. . . . . . . . . . . 12 ⊢ (𝑥 = 𝐷 → ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥) = ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷))
36		fveq2 5558	. . . . . . . . . . . 12 ⊢ (𝑥 = 𝐷 → ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥) = ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷))
37	35, 36	opeq12d 3816	. . . . . . . . . . 11 ⊢ (𝑥 = 𝐷 → ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥)⟩ = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷)⟩)
38	34, 37	eqeq12d 2211	. . . . . . . . . 10 ⊢ (𝑥 = 𝐷 → (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑥) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥)⟩ ↔ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷)⟩))
39	33, 38	rspc 2862	. . . . . . . . 9 ⊢ (𝐷 ∈ 𝑋 → (∀𝑥 ∈ 𝑋 ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑥) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥)⟩ → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷)⟩))
40	14, 28, 39	sylc 62	. . . . . . . 8 ⊢ (𝜑 → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷)⟩)
41	40	eleq1d 2265	. . . . . . 7 ⊢ (𝜑 → (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ (𝑣 × 𝑤) ↔ ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷)⟩ ∈ (𝑣 × 𝑤)))
42	41	adantr 276	. . . . . 6 ⊢ ((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) → (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ (𝑣 × 𝑤) ↔ ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷)⟩ ∈ (𝑣 × 𝑤)))
43	1	ad2antrr 488	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → 𝐽 ∈ (TopOn‘𝑋))
44	2	ad2antrr 488	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → 𝐾 ∈ (TopOn‘𝑌))
45	14	ad2antrr 488	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → 𝐷 ∈ 𝑋)
46	3	ad2antrr 488	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ ((𝐽 CnP 𝐾)‘𝐷))
47		simplrl 535	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → 𝑣 ∈ 𝐾)
48		simprl 529	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣)
49		icnpimaex 14447	. . . . . . . . . 10 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌) ∧ 𝐷 ∈ 𝑋) ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) ∈ ((𝐽 CnP 𝐾)‘𝐷) ∧ 𝑣 ∈ 𝐾 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣)) → ∃𝑟 ∈ 𝐽 (𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣))
50	43, 44, 45, 46, 47, 48, 49	syl33anc 1264	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → ∃𝑟 ∈ 𝐽 (𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣))
51	7	ad2antrr 488	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → 𝐿 ∈ (TopOn‘𝑍))
52	8	ad2antrr 488	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ ((𝐽 CnP 𝐿)‘𝐷))
53		simplrr 536	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → 𝑤 ∈ 𝐿)
54		simprr 531	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)
55		icnpimaex 14447	. . . . . . . . . 10 ⊢ (((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐿 ∈ (TopOn‘𝑍) ∧ 𝐷 ∈ 𝑋) ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) ∈ ((𝐽 CnP 𝐿)‘𝐷) ∧ 𝑤 ∈ 𝐿 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → ∃𝑠 ∈ 𝐽 (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤))
56	43, 51, 45, 52, 53, 54, 55	syl33anc 1264	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → ∃𝑠 ∈ 𝐽 (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤))
57	50, 56	jca 306	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤)) → (∃𝑟 ∈ 𝐽 (𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ ∃𝑠 ∈ 𝐽 (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤)))
58	57	ex 115	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) → ((((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤) → (∃𝑟 ∈ 𝐽 (𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ ∃𝑠 ∈ 𝐽 (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤))))
59		opelxp 4693	. . . . . . 7 ⊢ (⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷)⟩ ∈ (𝑣 × 𝑤) ↔ (((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷) ∈ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷) ∈ 𝑤))
60		reeanv 2667	. . . . . . 7 ⊢ (∃𝑟 ∈ 𝐽 ∃𝑠 ∈ 𝐽 ((𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤)) ↔ (∃𝑟 ∈ 𝐽 (𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ ∃𝑠 ∈ 𝐽 (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤)))
61	58, 59, 60	3imtr4g 205	. . . . . 6 ⊢ ((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) → (⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝐷), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝐷)⟩ ∈ (𝑣 × 𝑤) → ∃𝑟 ∈ 𝐽 ∃𝑠 ∈ 𝐽 ((𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤))))
62	42, 61	sylbid 150	. . . . 5 ⊢ ((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) → (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ (𝑣 × 𝑤) → ∃𝑟 ∈ 𝐽 ∃𝑠 ∈ 𝐽 ((𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤))))
63		an4 586	. . . . . . . . . . 11 ⊢ (((𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤)) ↔ ((𝐷 ∈ 𝑟 ∧ 𝐷 ∈ 𝑠) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤)))
64		elin 3346	. . . . . . . . . . . . . 14 ⊢ (𝐷 ∈ (𝑟 ∩ 𝑠) ↔ (𝐷 ∈ 𝑟 ∧ 𝐷 ∈ 𝑠))
65	64	biimpri 133	. . . . . . . . . . . . 13 ⊢ ((𝐷 ∈ 𝑟 ∧ 𝐷 ∈ 𝑠) → 𝐷 ∈ (𝑟 ∩ 𝑠))
66	65	a1i 9	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽)) → ((𝐷 ∈ 𝑟 ∧ 𝐷 ∈ 𝑠) → 𝐷 ∈ (𝑟 ∩ 𝑠)))
67		simpl 109	. . . . . . . . . . . . . . . 16 ⊢ ((𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽) → 𝑟 ∈ 𝐽)
68		toponss 14262	. . . . . . . . . . . . . . . 16 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝑟 ∈ 𝐽) → 𝑟 ⊆ 𝑋)
69	1, 67, 68	syl2an 289	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ (𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽)) → 𝑟 ⊆ 𝑋)
70		ssinss1 3392	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑟 ⊆ 𝑋 → (𝑟 ∩ 𝑠) ⊆ 𝑋)
71	70	adantl 277	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝑟 ⊆ 𝑋) → (𝑟 ∩ 𝑠) ⊆ 𝑋)
72	71	sselda 3183	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → 𝑡 ∈ 𝑋)
73	28	ad2antrr 488	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → ∀𝑥 ∈ 𝑋 ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑥) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥)⟩)
74		nffvmpt1 5569	. . . . . . . . . . . . . . . . . . . . 21 ⊢ Ⅎ𝑥((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑡)
75		nffvmpt1 5569	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ Ⅎ𝑥((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑡)
76		nffvmpt1 5569	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ Ⅎ𝑥((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑡)
77	75, 76	nfop 3824	. . . . . . . . . . . . . . . . . . . . 21 ⊢ Ⅎ𝑥⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑡), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑡)⟩
78	74, 77	nfeq 2347	. . . . . . . . . . . . . . . . . . . 20 ⊢ Ⅎ𝑥((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑡) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑡), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑡)⟩
79		fveq2 5558	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑥 = 𝑡 → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑥) = ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑡))
80		fveq2 5558	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑥 = 𝑡 → ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥) = ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑡))
81		fveq2 5558	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑥 = 𝑡 → ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥) = ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑡))
82	80, 81	opeq12d 3816	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑥 = 𝑡 → ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥)⟩ = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑡), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑡)⟩)
83	79, 82	eqeq12d 2211	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑥 = 𝑡 → (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑥) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥)⟩ ↔ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑡) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑡), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑡)⟩))
84	78, 83	rspc 2862	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑡 ∈ 𝑋 → (∀𝑥 ∈ 𝑋 ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑥) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑥), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑥)⟩ → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑡) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑡), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑡)⟩))
85	72, 73, 84	sylc 62	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑡) = ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑡), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑡)⟩)
86		simpr 110	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → 𝑡 ∈ (𝑟 ∩ 𝑠))
87	86	elin1d 3352	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → 𝑡 ∈ 𝑟)
88	5	ad2antrr 488	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → (𝑥 ∈ 𝑋 ↦ 𝐴):𝑋⟶𝑌)
89	88	ffund 5411	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → Fun (𝑥 ∈ 𝑋 ↦ 𝐴))
90	71	adantr 276	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → (𝑟 ∩ 𝑠) ⊆ 𝑋)
91	88	fdmd 5414	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → dom (𝑥 ∈ 𝑋 ↦ 𝐴) = 𝑋)
92	90, 91	sseqtrrd 3222	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → (𝑟 ∩ 𝑠) ⊆ dom (𝑥 ∈ 𝑋 ↦ 𝐴))
93	92, 86	sseldd 3184	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → 𝑡 ∈ dom (𝑥 ∈ 𝑋 ↦ 𝐴))
94		funfvima 5794	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((Fun (𝑥 ∈ 𝑋 ↦ 𝐴) ∧ 𝑡 ∈ dom (𝑥 ∈ 𝑋 ↦ 𝐴)) → (𝑡 ∈ 𝑟 → ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑡) ∈ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟)))
95	89, 93, 94	syl2anc 411	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → (𝑡 ∈ 𝑟 → ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑡) ∈ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟)))
96	87, 95	mpd 13	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑡) ∈ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟))
97	86	elin2d 3353	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → 𝑡 ∈ 𝑠)
98	10	ad2antrr 488	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → (𝑥 ∈ 𝑋 ↦ 𝐵):𝑋⟶𝑍)
99	98	ffund 5411	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → Fun (𝑥 ∈ 𝑋 ↦ 𝐵))
100	98	fdmd 5414	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → dom (𝑥 ∈ 𝑋 ↦ 𝐵) = 𝑋)
101	90, 100	sseqtrrd 3222	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → (𝑟 ∩ 𝑠) ⊆ dom (𝑥 ∈ 𝑋 ↦ 𝐵))
102	101, 86	sseldd 3184	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → 𝑡 ∈ dom (𝑥 ∈ 𝑋 ↦ 𝐵))
103		funfvima 5794	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((Fun (𝑥 ∈ 𝑋 ↦ 𝐵) ∧ 𝑡 ∈ dom (𝑥 ∈ 𝑋 ↦ 𝐵)) → (𝑡 ∈ 𝑠 → ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑡) ∈ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)))
104	99, 102, 103	syl2anc 411	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → (𝑡 ∈ 𝑠 → ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑡) ∈ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)))
105	97, 104	mpd 13	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑡) ∈ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠))
106	96, 105	opelxpd 4696	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → ⟨((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑡), ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑡)⟩ ∈ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)))
107	85, 106	eqeltrd 2273	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ 𝑟 ⊆ 𝑋) ∧ 𝑡 ∈ (𝑟 ∩ 𝑠)) → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑡) ∈ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)))
108	107	ralrimiva 2570	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑟 ⊆ 𝑋) → ∀𝑡 ∈ (𝑟 ∩ 𝑠)((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑡) ∈ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)))
109	13	ffund 5411	. . . . . . . . . . . . . . . . . 18 ⊢ (𝜑 → Fun (𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩))
110	109	adantr 276	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑟 ⊆ 𝑋) → Fun (𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩))
111	13	fdmd 5414	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝜑 → dom (𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) = 𝑋)
112	111	adantr 276	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑟 ⊆ 𝑋) → dom (𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) = 𝑋)
113	71, 112	sseqtrrd 3222	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑟 ⊆ 𝑋) → (𝑟 ∩ 𝑠) ⊆ dom (𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩))
114		funimass4 5611	. . . . . . . . . . . . . . . . 17 ⊢ ((Fun (𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) ∧ (𝑟 ∩ 𝑠) ⊆ dom (𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)) → (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)) ↔ ∀𝑡 ∈ (𝑟 ∩ 𝑠)((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑡) ∈ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠))))
115	110, 113, 114	syl2anc 411	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑟 ⊆ 𝑋) → (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)) ↔ ∀𝑡 ∈ (𝑟 ∩ 𝑠)((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝑡) ∈ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠))))
116	108, 115	mpbird 167	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑟 ⊆ 𝑋) → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)))
117	69, 116	syldan 282	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ (𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽)) → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)))
118	117	adantlr 477	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽)) → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)))
119		xpss12 4770	. . . . . . . . . . . . 13 ⊢ ((((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤) → (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)) ⊆ (𝑣 × 𝑤))
120		sstr2 3190	. . . . . . . . . . . . 13 ⊢ (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)) → ((((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) × ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠)) ⊆ (𝑣 × 𝑤) → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (𝑣 × 𝑤)))
121	118, 119, 120	syl2im 38	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽)) → ((((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤) → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (𝑣 × 𝑤)))
122	66, 121	anim12d 335	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽)) → (((𝐷 ∈ 𝑟 ∧ 𝐷 ∈ 𝑠) ∧ (((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤)) → (𝐷 ∈ (𝑟 ∩ 𝑠) ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (𝑣 × 𝑤))))
123	63, 122	biimtrid 152	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽)) → (((𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤)) → (𝐷 ∈ (𝑟 ∩ 𝑠) ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (𝑣 × 𝑤))))
124		topontop 14250	. . . . . . . . . . . . 13 ⊢ (𝐽 ∈ (TopOn‘𝑋) → 𝐽 ∈ Top)
125	1, 124	syl 14	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝐽 ∈ Top)
126		inopn 14239	. . . . . . . . . . . . 13 ⊢ ((𝐽 ∈ Top ∧ 𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽) → (𝑟 ∩ 𝑠) ∈ 𝐽)
127	126	3expb 1206	. . . . . . . . . . . 12 ⊢ ((𝐽 ∈ Top ∧ (𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽)) → (𝑟 ∩ 𝑠) ∈ 𝐽)
128	125, 127	sylan 283	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ (𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽)) → (𝑟 ∩ 𝑠) ∈ 𝐽)
129	128	adantlr 477	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽)) → (𝑟 ∩ 𝑠) ∈ 𝐽)
130	123, 129	jctild 316	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) ∧ (𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽)) → (((𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤)) → ((𝑟 ∩ 𝑠) ∈ 𝐽 ∧ (𝐷 ∈ (𝑟 ∩ 𝑠) ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (𝑣 × 𝑤)))))
131	130	expimpd 363	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) → (((𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽) ∧ ((𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤))) → ((𝑟 ∩ 𝑠) ∈ 𝐽 ∧ (𝐷 ∈ (𝑟 ∩ 𝑠) ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (𝑣 × 𝑤)))))
132		eleq2 2260	. . . . . . . . . 10 ⊢ (𝑧 = (𝑟 ∩ 𝑠) → (𝐷 ∈ 𝑧 ↔ 𝐷 ∈ (𝑟 ∩ 𝑠)))
133		imaeq2 5005	. . . . . . . . . . 11 ⊢ (𝑧 = (𝑟 ∩ 𝑠) → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) = ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)))
134	133	sseq1d 3212	. . . . . . . . . 10 ⊢ (𝑧 = (𝑟 ∩ 𝑠) → (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤) ↔ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (𝑣 × 𝑤)))
135	132, 134	anbi12d 473	. . . . . . . . 9 ⊢ (𝑧 = (𝑟 ∩ 𝑠) → ((𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤)) ↔ (𝐷 ∈ (𝑟 ∩ 𝑠) ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (𝑣 × 𝑤))))
136	135	rspcev 2868	. . . . . . . 8 ⊢ (((𝑟 ∩ 𝑠) ∈ 𝐽 ∧ (𝐷 ∈ (𝑟 ∩ 𝑠) ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ (𝑟 ∩ 𝑠)) ⊆ (𝑣 × 𝑤))) → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤)))
137	131, 136	syl6 33	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) → (((𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽) ∧ ((𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤))) → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤))))
138	137	expd 258	. . . . . 6 ⊢ ((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) → ((𝑟 ∈ 𝐽 ∧ 𝑠 ∈ 𝐽) → (((𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤)) → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤)))))
139	138	rexlimdvv 2621	. . . . 5 ⊢ ((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) → (∃𝑟 ∈ 𝐽 ∃𝑠 ∈ 𝐽 ((𝐷 ∈ 𝑟 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐴) “ 𝑟) ⊆ 𝑣) ∧ (𝐷 ∈ 𝑠 ∧ ((𝑥 ∈ 𝑋 ↦ 𝐵) “ 𝑠) ⊆ 𝑤)) → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤))))
140	62, 139	syld 45	. . . 4 ⊢ ((𝜑 ∧ (𝑣 ∈ 𝐾 ∧ 𝑤 ∈ 𝐿)) → (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ (𝑣 × 𝑤) → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤))))
141	140	ralrimivva 2579	. . 3 ⊢ (𝜑 → ∀𝑣 ∈ 𝐾 ∀𝑤 ∈ 𝐿 (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ (𝑣 × 𝑤) → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤))))
142		vex 2766	. . . . . 6 ⊢ 𝑣 ∈ V
143		vex 2766	. . . . . 6 ⊢ 𝑤 ∈ V
144	142, 143	xpex 4778	. . . . 5 ⊢ (𝑣 × 𝑤) ∈ V
145	144	rgen2w 2553	. . . 4 ⊢ ∀𝑣 ∈ 𝐾 ∀𝑤 ∈ 𝐿 (𝑣 × 𝑤) ∈ V
146		eqid 2196	. . . . 5 ⊢ (𝑣 ∈ 𝐾, 𝑤 ∈ 𝐿 ↦ (𝑣 × 𝑤)) = (𝑣 ∈ 𝐾, 𝑤 ∈ 𝐿 ↦ (𝑣 × 𝑤))
147		eleq2 2260	. . . . . 6 ⊢ (𝑦 = (𝑣 × 𝑤) → (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ 𝑦 ↔ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ (𝑣 × 𝑤)))
148		sseq2 3207	. . . . . . . 8 ⊢ (𝑦 = (𝑣 × 𝑤) → (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ 𝑦 ↔ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤)))
149	148	anbi2d 464	. . . . . . 7 ⊢ (𝑦 = (𝑣 × 𝑤) → ((𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ 𝑦) ↔ (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤))))
150	149	rexbidv 2498	. . . . . 6 ⊢ (𝑦 = (𝑣 × 𝑤) → (∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ 𝑦) ↔ ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤))))
151	147, 150	imbi12d 234	. . . . 5 ⊢ (𝑦 = (𝑣 × 𝑤) → ((((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ 𝑦 → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ 𝑦)) ↔ (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ (𝑣 × 𝑤) → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤)))))
152	146, 151	ralrnmpo 6037	. . . 4 ⊢ (∀𝑣 ∈ 𝐾 ∀𝑤 ∈ 𝐿 (𝑣 × 𝑤) ∈ V → (∀𝑦 ∈ ran (𝑣 ∈ 𝐾, 𝑤 ∈ 𝐿 ↦ (𝑣 × 𝑤))(((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ 𝑦 → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ 𝑦)) ↔ ∀𝑣 ∈ 𝐾 ∀𝑤 ∈ 𝐿 (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ (𝑣 × 𝑤) → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤)))))
153	145, 152	ax-mp 5	. . 3 ⊢ (∀𝑦 ∈ ran (𝑣 ∈ 𝐾, 𝑤 ∈ 𝐿 ↦ (𝑣 × 𝑤))(((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ 𝑦 → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ 𝑦)) ↔ ∀𝑣 ∈ 𝐾 ∀𝑤 ∈ 𝐿 (((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ (𝑣 × 𝑤) → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ (𝑣 × 𝑤))))
154	141, 153	sylibr 134	. 2 ⊢ (𝜑 → ∀𝑦 ∈ ran (𝑣 ∈ 𝐾, 𝑤 ∈ 𝐿 ↦ (𝑣 × 𝑤))(((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ 𝑦 → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ 𝑦)))
155		topontop 14250	. . . . 5 ⊢ (𝐾 ∈ (TopOn‘𝑌) → 𝐾 ∈ Top)
156	2, 155	syl 14	. . . 4 ⊢ (𝜑 → 𝐾 ∈ Top)
157		topontop 14250	. . . . 5 ⊢ (𝐿 ∈ (TopOn‘𝑍) → 𝐿 ∈ Top)
158	7, 157	syl 14	. . . 4 ⊢ (𝜑 → 𝐿 ∈ Top)
159		eqid 2196	. . . . 5 ⊢ ran (𝑣 ∈ 𝐾, 𝑤 ∈ 𝐿 ↦ (𝑣 × 𝑤)) = ran (𝑣 ∈ 𝐾, 𝑤 ∈ 𝐿 ↦ (𝑣 × 𝑤))
160	159	txval 14491	. . . 4 ⊢ ((𝐾 ∈ Top ∧ 𝐿 ∈ Top) → (𝐾 ×_t 𝐿) = (topGen‘ran (𝑣 ∈ 𝐾, 𝑤 ∈ 𝐿 ↦ (𝑣 × 𝑤))))
161	156, 158, 160	syl2anc 411	. . 3 ⊢ (𝜑 → (𝐾 ×_t 𝐿) = (topGen‘ran (𝑣 ∈ 𝐾, 𝑤 ∈ 𝐿 ↦ (𝑣 × 𝑤))))
162		txtopon 14498	. . . 4 ⊢ ((𝐾 ∈ (TopOn‘𝑌) ∧ 𝐿 ∈ (TopOn‘𝑍)) → (𝐾 ×_t 𝐿) ∈ (TopOn‘(𝑌 × 𝑍)))
163	2, 7, 162	syl2anc 411	. . 3 ⊢ (𝜑 → (𝐾 ×_t 𝐿) ∈ (TopOn‘(𝑌 × 𝑍)))
164	1, 161, 163, 14	tgcnp 14445	. 2 ⊢ (𝜑 → ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) ∈ ((𝐽 CnP (𝐾 ×_t 𝐿))‘𝐷) ↔ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩):𝑋⟶(𝑌 × 𝑍) ∧ ∀𝑦 ∈ ran (𝑣 ∈ 𝐾, 𝑤 ∈ 𝐿 ↦ (𝑣 × 𝑤))(((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩)‘𝐷) ∈ 𝑦 → ∃𝑧 ∈ 𝐽 (𝐷 ∈ 𝑧 ∧ ((𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) “ 𝑧) ⊆ 𝑦)))))
165	13, 154, 164	mpbir2and 946	1 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ ⟨𝐴, 𝐵⟩) ∈ ((𝐽 CnP (𝐾 ×_t 𝐿))‘𝐷))

Colors of variables: wff set class

Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 = wceq 1364 ∈ wcel 2167 ∀wral 2475 ∃wrex 2476 Vcvv 2763 ∩ cin 3156 ⊆ wss 3157 ⟨cop 3625 ↦ cmpt 4094 × cxp 4661 dom cdm 4663 ran crn 4664 “ cima 4666 Fun wfun 5252 ⟶wf 5254 ‘cfv 5258 (class class class)co 5922 ∈ cmpo 5924 topGenctg 12925 Topctop 14233 TopOnctopon 14246 CnP ccnp 14422 ×_t ctx 14488

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-13 2169 ax-14 2170 ax-ext 2178 ax-coll 4148 ax-sep 4151 ax-pow 4207 ax-pr 4242 ax-un 4468 ax-setind 4573

This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ne 2368 df-ral 2480 df-rex 2481 df-reu 2482 df-rab 2484 df-v 2765 df-sbc 2990 df-csb 3085 df-dif 3159 df-un 3161 df-in 3163 df-ss 3170 df-nul 3451 df-pw 3607 df-sn 3628 df-pr 3629 df-op 3631 df-uni 3840 df-iun 3918 df-br 4034 df-opab 4095 df-mpt 4096 df-id 4328 df-xp 4669 df-rel 4670 df-cnv 4671 df-co 4672 df-dm 4673 df-rn 4674 df-res 4675 df-ima 4676 df-iota 5219 df-fun 5260 df-fn 5261 df-f 5262 df-f1 5263 df-fo 5264 df-f1o 5265 df-fv 5266 df-ov 5925 df-oprab 5926 df-mpo 5927 df-1st 6198 df-2nd 6199 df-map 6709 df-topgen 12931 df-top 14234 df-topon 14247 df-bases 14279 df-cnp 14425 df-tx 14489

This theorem is referenced by: (None)

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