iccllysconn - Mathbox for Mario Carneiro

	Mathbox for Mario Carneiro		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > Mathboxes > iccllysconn		Structured version Visualization version GIF version

Theorem iccllysconn 34783

Description: A closed interval is locally simply connected. (Contributed by Mario Carneiro, 10-Mar-2015.)

**Assertion**
Ref	Expression
iccllysconn	⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((topGen‘ran (,)) ↾_t (𝐴[,]𝐵)) ∈ Locally SConn)

Proof of Theorem iccllysconn Dummy variables 𝑎 𝑏 𝑢 𝑣 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simprl 770	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) → 𝑥 ∈ (topGen‘ran (,)))
2		inss1 4224	. . . . . 6 ⊢ (𝑥 ∩ (𝐴[,]𝐵)) ⊆ 𝑥
3		simprr 772	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) → 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))
4	2, 3	sselid 3976	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) → 𝑦 ∈ 𝑥)
5		tg2 22842	. . . . 5 ⊢ ((𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ 𝑥) → ∃𝑧 ∈ ran (,)(𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))
6	1, 4, 5	syl2anc 583	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) → ∃𝑧 ∈ ran (,)(𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))
7		ioof 13442	. . . . . . . 8 ⊢ (,):(ℝ^* × ℝ^*)⟶𝒫 ℝ
8		ffn 6716	. . . . . . . 8 ⊢ ((,):(ℝ^* × ℝ^)⟶𝒫 ℝ → (,) Fn (ℝ^ × ℝ^*))
9		ovelrn 7589	. . . . . . . 8 ⊢ ((,) Fn (ℝ^* × ℝ^) → (𝑧 ∈ ran (,) ↔ ∃𝑎 ∈ ℝ^ ∃𝑏 ∈ ℝ^* 𝑧 = (𝑎(,)𝑏)))
10	7, 8, 9	mp2b 10	. . . . . . 7 ⊢ (𝑧 ∈ ran (,) ↔ ∃𝑎 ∈ ℝ^* ∃𝑏 ∈ ℝ^* 𝑧 = (𝑎(,)𝑏))
11		inss1 4224	. . . . . . . . . . . 12 ⊢ (𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑧
12		simprrr 781	. . . . . . . . . . . 12 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → 𝑧 ⊆ 𝑥)
13	11, 12	sstrid 3989	. . . . . . . . . . 11 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → (𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥)
14		simprrl 780	. . . . . . . . . . 11 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → 𝑦 ∈ 𝑧)
15		simprl 770	. . . . . . . . . . . . . 14 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → 𝑧 = (𝑎(,)𝑏))
16	15	ineq1d 4207	. . . . . . . . . . . . 13 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → (𝑧 ∩ (𝐴[,]𝐵)) = ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)))
17	16	oveq2d 7430	. . . . . . . . . . . 12 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) = ((topGen‘ran (,)) ↾_t ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))))
18		ioosconn 34780	. . . . . . . . . . . . . . . 16 ⊢ ((topGen‘ran (,)) ↾_t (𝑎(,)𝑏)) ∈ SConn
19		ioossre 13403	. . . . . . . . . . . . . . . . 17 ⊢ (𝑎(,)𝑏) ⊆ ℝ
20		eqid 2727	. . . . . . . . . . . . . . . . . . 19 ⊢ ((topGen‘ran (,)) ↾_t (𝑎(,)𝑏)) = ((topGen‘ran (,)) ↾_t (𝑎(,)𝑏))
21	20	resconn 34779	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑎(,)𝑏) ⊆ ℝ → (((topGen‘ran (,)) ↾_t (𝑎(,)𝑏)) ∈ SConn ↔ ((topGen‘ran (,)) ↾_t (𝑎(,)𝑏)) ∈ Conn))
22		reconn 24718	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑎(,)𝑏) ⊆ ℝ → (((topGen‘ran (,)) ↾_t (𝑎(,)𝑏)) ∈ Conn ↔ ∀𝑢 ∈ (𝑎(,)𝑏)∀𝑣 ∈ (𝑎(,)𝑏)(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏)))
23	21, 22	bitrd 279	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑎(,)𝑏) ⊆ ℝ → (((topGen‘ran (,)) ↾_t (𝑎(,)𝑏)) ∈ SConn ↔ ∀𝑢 ∈ (𝑎(,)𝑏)∀𝑣 ∈ (𝑎(,)𝑏)(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏)))
24	19, 23	ax-mp 5	. . . . . . . . . . . . . . . 16 ⊢ (((topGen‘ran (,)) ↾_t (𝑎(,)𝑏)) ∈ SConn ↔ ∀𝑢 ∈ (𝑎(,)𝑏)∀𝑣 ∈ (𝑎(,)𝑏)(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏))
25	18, 24	mpbi 229	. . . . . . . . . . . . . . 15 ⊢ ∀𝑢 ∈ (𝑎(,)𝑏)∀𝑣 ∈ (𝑎(,)𝑏)(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏)
26		inss1 4224	. . . . . . . . . . . . . . . 16 ⊢ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ (𝑎(,)𝑏)
27		ssralv 4046	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ (𝑎(,)𝑏) → (∀𝑣 ∈ (𝑎(,)𝑏)(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏) → ∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏)))
28	27	ralimdv 3164	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ (𝑎(,)𝑏) → (∀𝑢 ∈ (𝑎(,)𝑏)∀𝑣 ∈ (𝑎(,)𝑏)(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏) → ∀𝑢 ∈ (𝑎(,)𝑏)∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏)))
29		ssralv 4046	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ (𝑎(,)𝑏) → (∀𝑢 ∈ (𝑎(,)𝑏)∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏) → ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏)))
30	28, 29	syld 47	. . . . . . . . . . . . . . . 16 ⊢ (((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ (𝑎(,)𝑏) → (∀𝑢 ∈ (𝑎(,)𝑏)∀𝑣 ∈ (𝑎(,)𝑏)(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏) → ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏)))
31	26, 30	ax-mp 5	. . . . . . . . . . . . . . 15 ⊢ (∀𝑢 ∈ (𝑎(,)𝑏)∀𝑣 ∈ (𝑎(,)𝑏)(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏) → ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏))
32	25, 31	mp1i 13	. . . . . . . . . . . . . 14 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏))
33		inss2 4225	. . . . . . . . . . . . . . 15 ⊢ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ (𝐴[,]𝐵)
34		iccconn 24720	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((topGen‘ran (,)) ↾_t (𝐴[,]𝐵)) ∈ Conn)
35		iccssre 13424	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴[,]𝐵) ⊆ ℝ)
36		reconn 24718	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐴[,]𝐵) ⊆ ℝ → (((topGen‘ran (,)) ↾_t (𝐴[,]𝐵)) ∈ Conn ↔ ∀𝑢 ∈ (𝐴[,]𝐵)∀𝑣 ∈ (𝐴[,]𝐵)(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵)))
37	35, 36	syl 17	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (((topGen‘ran (,)) ↾_t (𝐴[,]𝐵)) ∈ Conn ↔ ∀𝑢 ∈ (𝐴[,]𝐵)∀𝑣 ∈ (𝐴[,]𝐵)(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵)))
38	34, 37	mpbid 231	. . . . . . . . . . . . . . . 16 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ∀𝑢 ∈ (𝐴[,]𝐵)∀𝑣 ∈ (𝐴[,]𝐵)(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵))
39	38	ad2antrr 725	. . . . . . . . . . . . . . 15 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → ∀𝑢 ∈ (𝐴[,]𝐵)∀𝑣 ∈ (𝐴[,]𝐵)(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵))
40		ssralv 4046	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ (𝐴[,]𝐵) → (∀𝑣 ∈ (𝐴[,]𝐵)(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵) → ∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵)))
41	40	ralimdv 3164	. . . . . . . . . . . . . . . 16 ⊢ (((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ (𝐴[,]𝐵) → (∀𝑢 ∈ (𝐴[,]𝐵)∀𝑣 ∈ (𝐴[,]𝐵)(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵) → ∀𝑢 ∈ (𝐴[,]𝐵)∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵)))
42		ssralv 4046	. . . . . . . . . . . . . . . 16 ⊢ (((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ (𝐴[,]𝐵) → (∀𝑢 ∈ (𝐴[,]𝐵)∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵) → ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵)))
43	41, 42	syld 47	. . . . . . . . . . . . . . 15 ⊢ (((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ (𝐴[,]𝐵) → (∀𝑢 ∈ (𝐴[,]𝐵)∀𝑣 ∈ (𝐴[,]𝐵)(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵) → ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵)))
44	33, 39, 43	mpsyl 68	. . . . . . . . . . . . . 14 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵))
45		ssin 4226	. . . . . . . . . . . . . . . 16 ⊢ (((𝑢[,]𝑣) ⊆ (𝑎(,)𝑏) ∧ (𝑢[,]𝑣) ⊆ (𝐴[,]𝐵)) ↔ (𝑢[,]𝑣) ⊆ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)))
46	45	2ralbii 3123	. . . . . . . . . . . . . . 15 ⊢ (∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))((𝑢[,]𝑣) ⊆ (𝑎(,)𝑏) ∧ (𝑢[,]𝑣) ⊆ (𝐴[,]𝐵)) ↔ ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)))
47		r19.26-2 3133	. . . . . . . . . . . . . . 15 ⊢ (∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))((𝑢[,]𝑣) ⊆ (𝑎(,)𝑏) ∧ (𝑢[,]𝑣) ⊆ (𝐴[,]𝐵)) ↔ (∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏) ∧ ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵)))
48	46, 47	bitr3i 277	. . . . . . . . . . . . . 14 ⊢ (∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ↔ (∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝑎(,)𝑏) ∧ ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ (𝐴[,]𝐵)))
49	32, 44, 48	sylanbrc 582	. . . . . . . . . . . . 13 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)))
50	26, 19	sstri 3987	. . . . . . . . . . . . . 14 ⊢ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ ℝ
51		eqid 2727	. . . . . . . . . . . . . . . 16 ⊢ ((topGen‘ran (,)) ↾_t ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))) = ((topGen‘ran (,)) ↾_t ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)))
52	51	resconn 34779	. . . . . . . . . . . . . . 15 ⊢ (((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ ℝ → (((topGen‘ran (,)) ↾_t ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))) ∈ SConn ↔ ((topGen‘ran (,)) ↾_t ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))) ∈ Conn))
53		reconn 24718	. . . . . . . . . . . . . . 15 ⊢ (((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ ℝ → (((topGen‘ran (,)) ↾_t ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))) ∈ Conn ↔ ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))))
54	52, 53	bitrd 279	. . . . . . . . . . . . . 14 ⊢ (((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)) ⊆ ℝ → (((topGen‘ran (,)) ↾_t ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))) ∈ SConn ↔ ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))))
55	50, 54	ax-mp 5	. . . . . . . . . . . . 13 ⊢ (((topGen‘ran (,)) ↾_t ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))) ∈ SConn ↔ ∀𝑢 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))∀𝑣 ∈ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))(𝑢[,]𝑣) ⊆ ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵)))
56	49, 55	sylibr 233	. . . . . . . . . . . 12 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → ((topGen‘ran (,)) ↾_t ((𝑎(,)𝑏) ∩ (𝐴[,]𝐵))) ∈ SConn)
57	17, 56	eqeltrd 2828	. . . . . . . . . . 11 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn)
58	13, 14, 57	3jca 1126	. . . . . . . . . 10 ⊢ ((((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) ∧ (𝑧 = (𝑎(,)𝑏) ∧ (𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥))) → ((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn))
59	58	exp32 420	. . . . . . . . 9 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) → (𝑧 = (𝑎(,)𝑏) → ((𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥) → ((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn))))
60	59	rexlimdvw 3155	. . . . . . . 8 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) → (∃𝑏 ∈ ℝ^* 𝑧 = (𝑎(,)𝑏) → ((𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥) → ((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn))))
61	60	rexlimdvw 3155	. . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) → (∃𝑎 ∈ ℝ^* ∃𝑏 ∈ ℝ^* 𝑧 = (𝑎(,)𝑏) → ((𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥) → ((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn))))
62	10, 61	biimtrid 241	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) → (𝑧 ∈ ran (,) → ((𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥) → ((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn))))
63	62	reximdvai 3160	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) → (∃𝑧 ∈ ran (,)(𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥) → ∃𝑧 ∈ ran (,)((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn)))
64		retopbas 24651	. . . . . 6 ⊢ ran (,) ∈ TopBases
65		bastg 22843	. . . . . 6 ⊢ (ran (,) ∈ TopBases → ran (,) ⊆ (topGen‘ran (,)))
66		ssrexv 4047	. . . . . 6 ⊢ (ran (,) ⊆ (topGen‘ran (,)) → (∃𝑧 ∈ ran (,)((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn) → ∃𝑧 ∈ (topGen‘ran (,))((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn)))
67	64, 65, 66	mp2b 10	. . . . 5 ⊢ (∃𝑧 ∈ ran (,)((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn) → ∃𝑧 ∈ (topGen‘ran (,))((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn))
68	63, 67	syl6 35	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) → (∃𝑧 ∈ ran (,)(𝑦 ∈ 𝑧 ∧ 𝑧 ⊆ 𝑥) → ∃𝑧 ∈ (topGen‘ran (,))((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn)))
69	6, 68	mpd 15	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) ∧ (𝑥 ∈ (topGen‘ran (,)) ∧ 𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵)))) → ∃𝑧 ∈ (topGen‘ran (,))((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn))
70	69	ralrimivva 3195	. 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ∀𝑥 ∈ (topGen‘ran (,))∀𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵))∃𝑧 ∈ (topGen‘ran (,))((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn))
71		retop 24652	. . 3 ⊢ (topGen‘ran (,)) ∈ Top
72		ovex 7447	. . 3 ⊢ (𝐴[,]𝐵) ∈ V
73		subislly 23359	. . 3 ⊢ (((topGen‘ran (,)) ∈ Top ∧ (𝐴[,]𝐵) ∈ V) → (((topGen‘ran (,)) ↾_t (𝐴[,]𝐵)) ∈ Locally SConn ↔ ∀𝑥 ∈ (topGen‘ran (,))∀𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵))∃𝑧 ∈ (topGen‘ran (,))((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn)))
74	71, 72, 73	mp2an 691	. 2 ⊢ (((topGen‘ran (,)) ↾_t (𝐴[,]𝐵)) ∈ Locally SConn ↔ ∀𝑥 ∈ (topGen‘ran (,))∀𝑦 ∈ (𝑥 ∩ (𝐴[,]𝐵))∃𝑧 ∈ (topGen‘ran (,))((𝑧 ∩ (𝐴[,]𝐵)) ⊆ 𝑥 ∧ 𝑦 ∈ 𝑧 ∧ ((topGen‘ran (,)) ↾_t (𝑧 ∩ (𝐴[,]𝐵))) ∈ SConn))
75	70, 74	sylibr 233	1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((topGen‘ran (,)) ↾_t (𝐴[,]𝐵)) ∈ Locally SConn)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 ∧ w3a 1085 = wceq 1534 ∈ wcel 2099 ∀wral 3056 ∃wrex 3065 Vcvv 3469 ∩ cin 3943 ⊆ wss 3944 𝒫 cpw 4598 × cxp 5670 ran crn 5673 Fn wfn 6537 ⟶wf 6538 ‘cfv 6542 (class class class)co 7414 ℝcr 11123 ℝ^*cxr 11263 (,)cioo 13342 [,]cicc 13345 ↾_t crest 17387 topGenctg 17404 Topctop 22769 TopBasesctb 22822 Conncconn 23289 Locally clly 23342 SConncsconn 34753

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2164 ax-ext 2698 ax-rep 5279 ax-sep 5293 ax-nul 5300 ax-pow 5359 ax-pr 5423 ax-un 7732 ax-cnex 11180 ax-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-addrcl 11185 ax-mulcl 11186 ax-mulrcl 11187 ax-mulcom 11188 ax-addass 11189 ax-mulass 11190 ax-distr 11191 ax-i2m1 11192 ax-1ne0 11193 ax-1rid 11194 ax-rnegex 11195 ax-rrecex 11196 ax-cnre 11197 ax-pre-lttri 11198 ax-pre-lttrn 11199 ax-pre-ltadd 11200 ax-pre-mulgt0 11201 ax-pre-sup 11202 ax-addf 11203

This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2529 df-eu 2558 df-clab 2705 df-cleq 2719 df-clel 2805 df-nfc 2880 df-ne 2936 df-nel 3042 df-ral 3057 df-rex 3066 df-rmo 3371 df-reu 3372 df-rab 3428 df-v 3471 df-sbc 3775 df-csb 3890 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-pss 3963 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-tp 4629 df-op 4631 df-uni 4904 df-int 4945 df-iun 4993 df-iin 4994 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-se 5628 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-isom 6551 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-of 7677 df-om 7863 df-1st 7985 df-2nd 7986 df-supp 8158 df-frecs 8278 df-wrecs 8309 df-recs 8383 df-rdg 8422 df-1o 8478 df-2o 8479 df-er 8716 df-map 8836 df-ixp 8906 df-en 8954 df-dom 8955 df-sdom 8956 df-fin 8957 df-fsupp 9376 df-fi 9420 df-sup 9451 df-inf 9452 df-oi 9519 df-card 9948 df-pnf 11266 df-mnf 11267 df-xr 11268 df-ltxr 11269 df-le 11270 df-sub 11462 df-neg 11463 df-div 11888 df-nn 12229 df-2 12291 df-3 12292 df-4 12293 df-5 12294 df-6 12295 df-7 12296 df-8 12297 df-9 12298 df-n0 12489 df-z 12575 df-dec 12694 df-uz 12839 df-q 12949 df-rp 12993 df-xneg 13110 df-xadd 13111 df-xmul 13112 df-ioo 13346 df-ico 13348 df-icc 13349 df-fz 13503 df-fzo 13646 df-seq 13985 df-exp 14045 df-hash 14308 df-cj 15064 df-re 15065 df-im 15066 df-sqrt 15200 df-abs 15201 df-struct 17101 df-sets 17118 df-slot 17136 df-ndx 17148 df-base 17166 df-ress 17195 df-plusg 17231 df-mulr 17232 df-starv 17233 df-sca 17234 df-vsca 17235 df-ip 17236 df-tset 17237 df-ple 17238 df-ds 17240 df-unif 17241 df-hom 17242 df-cco 17243 df-rest 17389 df-topn 17390 df-0g 17408 df-gsum 17409 df-topgen 17410 df-pt 17411 df-prds 17414 df-xrs 17469 df-qtop 17474 df-imas 17475 df-xps 17477 df-mre 17551 df-mrc 17552 df-acs 17554 df-mgm 18585 df-sgrp 18664 df-mnd 18680 df-submnd 18726 df-mulg 19008 df-cntz 19252 df-cmn 19721 df-psmet 21251 df-xmet 21252 df-met 21253 df-bl 21254 df-mopn 21255 df-cnfld 21260 df-top 22770 df-topon 22787 df-topsp 22809 df-bases 22823 df-cld 22897 df-cn 23105 df-cnp 23106 df-conn 23290 df-lly 23344 df-tx 23440 df-hmeo 23633 df-xms 24200 df-ms 24201 df-tms 24202 df-ii 24771 df-cncf 24772 df-htpy 24870 df-phtpy 24871 df-phtpc 24892 df-pconn 34754 df-sconn 34755

This theorem is referenced by: iillysconn 34786

W3C validator