Theorem imastset

Description: The topology of an image structure. (Contributed by Mario Carneiro, 23-Feb-2015)

	Ref	Expression
Hypotheses	imasbas.u	⊢ ( 𝜑 → 𝑈 = ( 𝐹 “s 𝑅 ) )
	imasbas.v	⊢ ( 𝜑 → 𝑉 = ( Base ‘ 𝑅 ) )
	imasbas.f	⊢ ( 𝜑 → 𝐹 : 𝑉 –onto→ 𝐵 )
	imasbas.r	⊢ ( 𝜑 → 𝑅 ∈ 𝑍 )
	imastset.j	⊢ 𝐽 = ( TopOpen ‘ 𝑅 )
	imastset.o	⊢ 𝑂 = ( TopSet ‘ 𝑈 )
Assertion	imastset	⊢ ( 𝜑 → 𝑂 = ( 𝐽 qTop 𝐹 ) )

Proof

Step	Hyp	Ref	Expression
1		imasbas.u	⊢ ( 𝜑 → 𝑈 = ( 𝐹 “s 𝑅 ) )
2		imasbas.v	⊢ ( 𝜑 → 𝑉 = ( Base ‘ 𝑅 ) )
3		imasbas.f	⊢ ( 𝜑 → 𝐹 : 𝑉 –onto→ 𝐵 )
4		imasbas.r	⊢ ( 𝜑 → 𝑅 ∈ 𝑍 )
5		imastset.j	⊢ 𝐽 = ( TopOpen ‘ 𝑅 )
6		imastset.o	⊢ 𝑂 = ( TopSet ‘ 𝑈 )
7		eqid	⊢ ( +g ‘ 𝑅 ) = ( +g ‘ 𝑅 )
8		eqid	⊢ ( .r ‘ 𝑅 ) = ( .r ‘ 𝑅 )
9		eqid	⊢ ( Scalar ‘ 𝑅 ) = ( Scalar ‘ 𝑅 )
10		eqid	⊢ ( Base ‘ ( Scalar ‘ 𝑅 ) ) = ( Base ‘ ( Scalar ‘ 𝑅 ) )
11		eqid	⊢ ( ·𝑠 ‘ 𝑅 ) = ( ·𝑠 ‘ 𝑅 )
12		eqid	⊢ ( ·𝑖 ‘ 𝑅 ) = ( ·𝑖 ‘ 𝑅 )
13		eqid	⊢ ( dist ‘ 𝑅 ) = ( dist ‘ 𝑅 )
14		eqid	⊢ ( le ‘ 𝑅 ) = ( le ‘ 𝑅 )
15		eqid	⊢ ( +g ‘ 𝑈 ) = ( +g ‘ 𝑈 )
16	1 2 3 4 7 15	imasplusg	⊢ ( 𝜑 → ( +g ‘ 𝑈 ) = ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝐹 ‘ ( 𝑝 ( +g ‘ 𝑅 ) 𝑞 ) ) ⟩ } )
17		eqid	⊢ ( .r ‘ 𝑈 ) = ( .r ‘ 𝑈 )
18	1 2 3 4 8 17	imasmulr	⊢ ( 𝜑 → ( .r ‘ 𝑈 ) = ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝐹 ‘ ( 𝑝 ( .r ‘ 𝑅 ) 𝑞 ) ) ⟩ } )
19		eqid	⊢ ( ·𝑠 ‘ 𝑈 ) = ( ·𝑠 ‘ 𝑈 )
20	1 2 3 4 9 10 11 19	imasvsca	⊢ ( 𝜑 → ( ·𝑠 ‘ 𝑈 ) = ∪ 𝑞 ∈ 𝑉 ( 𝑝 ∈ ( Base ‘ ( Scalar ‘ 𝑅 ) ) , 𝑥 ∈ { ( 𝐹 ‘ 𝑞 ) } ↦ ( 𝐹 ‘ ( 𝑝 ( ·𝑠 ‘ 𝑅 ) 𝑞 ) ) ) )
21		eqidd	⊢ ( 𝜑 → ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝑝 ( ·𝑖 ‘ 𝑅 ) 𝑞 ) ⟩ } = ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝑝 ( ·𝑖 ‘ 𝑅 ) 𝑞 ) ⟩ } )
22		eqidd	⊢ ( 𝜑 → ( 𝐽 qTop 𝐹 ) = ( 𝐽 qTop 𝐹 ) )
23		eqid	⊢ ( dist ‘ 𝑈 ) = ( dist ‘ 𝑈 )
24	1 2 3 4 13 23	imasds	⊢ ( 𝜑 → ( dist ‘ 𝑈 ) = ( 𝑥 ∈ 𝐵 , 𝑦 ∈ 𝐵 ↦ inf ( ∪ 𝑢 ∈ ℕ ran ( 𝑧 ∈ { 𝑤 ∈ ( ( 𝑉 × 𝑉 ) ↑m ( 1 ... 𝑢 ) ) ∣ ( ( 𝐹 ‘ ( 1st ‘ ( 𝑤 ‘ 1 ) ) ) = 𝑥 ∧ ( 𝐹 ‘ ( 2nd ‘ ( 𝑤 ‘ 𝑢 ) ) ) = 𝑦 ∧ ∀ 𝑣 ∈ ( 1 ... ( 𝑢 − 1 ) ) ( 𝐹 ‘ ( 2nd ‘ ( 𝑤 ‘ 𝑣 ) ) ) = ( 𝐹 ‘ ( 1st ‘ ( 𝑤 ‘ ( 𝑣 + 1 ) ) ) ) ) } ↦ ( ℝ*𝑠 Σg ( ( dist ‘ 𝑅 ) ∘ 𝑧 ) ) ) , ℝ* , < ) ) )
25		eqidd	⊢ ( 𝜑 → ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) = ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) )
26	1 2 7 8 9 10 11 12 5 13 14 16 18 20 21 22 24 25 3 4	imasval	⊢ ( 𝜑 → 𝑈 = ( ( { ⟨ ( Base ‘ ndx ) , 𝐵 ⟩ , ⟨ ( +g ‘ ndx ) , ( +g ‘ 𝑈 ) ⟩ , ⟨ ( .r ‘ ndx ) , ( .r ‘ 𝑈 ) ⟩ } ∪ { ⟨ ( Scalar ‘ ndx ) , ( Scalar ‘ 𝑅 ) ⟩ , ⟨ ( ·𝑠 ‘ ndx ) , ( ·𝑠 ‘ 𝑈 ) ⟩ , ⟨ ( ·𝑖 ‘ ndx ) , ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝑝 ( ·𝑖 ‘ 𝑅 ) 𝑞 ) ⟩ } ⟩ } ) ∪ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ , ⟨ ( le ‘ ndx ) , ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) ⟩ , ⟨ ( dist ‘ ndx ) , ( dist ‘ 𝑈 ) ⟩ } ) )
27	26	fveq2d	⊢ ( 𝜑 → ( TopSet ‘ 𝑈 ) = ( TopSet ‘ ( ( { ⟨ ( Base ‘ ndx ) , 𝐵 ⟩ , ⟨ ( +g ‘ ndx ) , ( +g ‘ 𝑈 ) ⟩ , ⟨ ( .r ‘ ndx ) , ( .r ‘ 𝑈 ) ⟩ } ∪ { ⟨ ( Scalar ‘ ndx ) , ( Scalar ‘ 𝑅 ) ⟩ , ⟨ ( ·𝑠 ‘ ndx ) , ( ·𝑠 ‘ 𝑈 ) ⟩ , ⟨ ( ·𝑖 ‘ ndx ) , ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝑝 ( ·𝑖 ‘ 𝑅 ) 𝑞 ) ⟩ } ⟩ } ) ∪ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ , ⟨ ( le ‘ ndx ) , ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) ⟩ , ⟨ ( dist ‘ ndx ) , ( dist ‘ 𝑈 ) ⟩ } ) ) )
28		ovex	⊢ ( 𝐽 qTop 𝐹 ) ∈ V
29		eqid	⊢ ( ( { ⟨ ( Base ‘ ndx ) , 𝐵 ⟩ , ⟨ ( +g ‘ ndx ) , ( +g ‘ 𝑈 ) ⟩ , ⟨ ( .r ‘ ndx ) , ( .r ‘ 𝑈 ) ⟩ } ∪ { ⟨ ( Scalar ‘ ndx ) , ( Scalar ‘ 𝑅 ) ⟩ , ⟨ ( ·𝑠 ‘ ndx ) , ( ·𝑠 ‘ 𝑈 ) ⟩ , ⟨ ( ·𝑖 ‘ ndx ) , ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝑝 ( ·𝑖 ‘ 𝑅 ) 𝑞 ) ⟩ } ⟩ } ) ∪ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ , ⟨ ( le ‘ ndx ) , ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) ⟩ , ⟨ ( dist ‘ ndx ) , ( dist ‘ 𝑈 ) ⟩ } ) = ( ( { ⟨ ( Base ‘ ndx ) , 𝐵 ⟩ , ⟨ ( +g ‘ ndx ) , ( +g ‘ 𝑈 ) ⟩ , ⟨ ( .r ‘ ndx ) , ( .r ‘ 𝑈 ) ⟩ } ∪ { ⟨ ( Scalar ‘ ndx ) , ( Scalar ‘ 𝑅 ) ⟩ , ⟨ ( ·𝑠 ‘ ndx ) , ( ·𝑠 ‘ 𝑈 ) ⟩ , ⟨ ( ·𝑖 ‘ ndx ) , ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝑝 ( ·𝑖 ‘ 𝑅 ) 𝑞 ) ⟩ } ⟩ } ) ∪ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ , ⟨ ( le ‘ ndx ) , ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) ⟩ , ⟨ ( dist ‘ ndx ) , ( dist ‘ 𝑈 ) ⟩ } )
30	29	imasvalstr	⊢ ( ( { ⟨ ( Base ‘ ndx ) , 𝐵 ⟩ , ⟨ ( +g ‘ ndx ) , ( +g ‘ 𝑈 ) ⟩ , ⟨ ( .r ‘ ndx ) , ( .r ‘ 𝑈 ) ⟩ } ∪ { ⟨ ( Scalar ‘ ndx ) , ( Scalar ‘ 𝑅 ) ⟩ , ⟨ ( ·𝑠 ‘ ndx ) , ( ·𝑠 ‘ 𝑈 ) ⟩ , ⟨ ( ·𝑖 ‘ ndx ) , ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝑝 ( ·𝑖 ‘ 𝑅 ) 𝑞 ) ⟩ } ⟩ } ) ∪ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ , ⟨ ( le ‘ ndx ) , ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) ⟩ , ⟨ ( dist ‘ ndx ) , ( dist ‘ 𝑈 ) ⟩ } ) Struct ⟨ 1 , ; 1 2 ⟩
31		tsetid	⊢ TopSet = Slot ( TopSet ‘ ndx )
32		snsstp1	⊢ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ } ⊆ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ , ⟨ ( le ‘ ndx ) , ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) ⟩ , ⟨ ( dist ‘ ndx ) , ( dist ‘ 𝑈 ) ⟩ }
33		ssun2	⊢ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ , ⟨ ( le ‘ ndx ) , ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) ⟩ , ⟨ ( dist ‘ ndx ) , ( dist ‘ 𝑈 ) ⟩ } ⊆ ( ( { ⟨ ( Base ‘ ndx ) , 𝐵 ⟩ , ⟨ ( +g ‘ ndx ) , ( +g ‘ 𝑈 ) ⟩ , ⟨ ( .r ‘ ndx ) , ( .r ‘ 𝑈 ) ⟩ } ∪ { ⟨ ( Scalar ‘ ndx ) , ( Scalar ‘ 𝑅 ) ⟩ , ⟨ ( ·𝑠 ‘ ndx ) , ( ·𝑠 ‘ 𝑈 ) ⟩ , ⟨ ( ·𝑖 ‘ ndx ) , ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝑝 ( ·𝑖 ‘ 𝑅 ) 𝑞 ) ⟩ } ⟩ } ) ∪ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ , ⟨ ( le ‘ ndx ) , ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) ⟩ , ⟨ ( dist ‘ ndx ) , ( dist ‘ 𝑈 ) ⟩ } )
34	32 33	sstri	⊢ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ } ⊆ ( ( { ⟨ ( Base ‘ ndx ) , 𝐵 ⟩ , ⟨ ( +g ‘ ndx ) , ( +g ‘ 𝑈 ) ⟩ , ⟨ ( .r ‘ ndx ) , ( .r ‘ 𝑈 ) ⟩ } ∪ { ⟨ ( Scalar ‘ ndx ) , ( Scalar ‘ 𝑅 ) ⟩ , ⟨ ( ·𝑠 ‘ ndx ) , ( ·𝑠 ‘ 𝑈 ) ⟩ , ⟨ ( ·𝑖 ‘ ndx ) , ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝑝 ( ·𝑖 ‘ 𝑅 ) 𝑞 ) ⟩ } ⟩ } ) ∪ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ , ⟨ ( le ‘ ndx ) , ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) ⟩ , ⟨ ( dist ‘ ndx ) , ( dist ‘ 𝑈 ) ⟩ } )
35	30 31 34	strfv	⊢ ( ( 𝐽 qTop 𝐹 ) ∈ V → ( 𝐽 qTop 𝐹 ) = ( TopSet ‘ ( ( { ⟨ ( Base ‘ ndx ) , 𝐵 ⟩ , ⟨ ( +g ‘ ndx ) , ( +g ‘ 𝑈 ) ⟩ , ⟨ ( .r ‘ ndx ) , ( .r ‘ 𝑈 ) ⟩ } ∪ { ⟨ ( Scalar ‘ ndx ) , ( Scalar ‘ 𝑅 ) ⟩ , ⟨ ( ·𝑠 ‘ ndx ) , ( ·𝑠 ‘ 𝑈 ) ⟩ , ⟨ ( ·𝑖 ‘ ndx ) , ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝑝 ( ·𝑖 ‘ 𝑅 ) 𝑞 ) ⟩ } ⟩ } ) ∪ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ , ⟨ ( le ‘ ndx ) , ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) ⟩ , ⟨ ( dist ‘ ndx ) , ( dist ‘ 𝑈 ) ⟩ } ) ) )
36	28 35	ax-mp	⊢ ( 𝐽 qTop 𝐹 ) = ( TopSet ‘ ( ( { ⟨ ( Base ‘ ndx ) , 𝐵 ⟩ , ⟨ ( +g ‘ ndx ) , ( +g ‘ 𝑈 ) ⟩ , ⟨ ( .r ‘ ndx ) , ( .r ‘ 𝑈 ) ⟩ } ∪ { ⟨ ( Scalar ‘ ndx ) , ( Scalar ‘ 𝑅 ) ⟩ , ⟨ ( ·𝑠 ‘ ndx ) , ( ·𝑠 ‘ 𝑈 ) ⟩ , ⟨ ( ·𝑖 ‘ ndx ) , ∪ 𝑝 ∈ 𝑉 ∪ 𝑞 ∈ 𝑉 { ⟨ ⟨ ( 𝐹 ‘ 𝑝 ) , ( 𝐹 ‘ 𝑞 ) ⟩ , ( 𝑝 ( ·𝑖 ‘ 𝑅 ) 𝑞 ) ⟩ } ⟩ } ) ∪ { ⟨ ( TopSet ‘ ndx ) , ( 𝐽 qTop 𝐹 ) ⟩ , ⟨ ( le ‘ ndx ) , ( ( 𝐹 ∘ ( le ‘ 𝑅 ) ) ∘ ◡ 𝐹 ) ⟩ , ⟨ ( dist ‘ ndx ) , ( dist ‘ 𝑈 ) ⟩ } ) )
37	27 6 36	3eqtr4g	⊢ ( 𝜑 → 𝑂 = ( 𝐽 qTop 𝐹 ) )