Theorem cnclsi 23498

Description: Property of the image of a closure. (Contributed by Mario Carneiro, 25-Aug-2015.)

Hypothesis

Ref	Expression
cnclsi.1	⊢ 𝑋 = ∪ 𝐽

Assertion

Ref	Expression
cnclsi	⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → (𝐹 “ ((cls‘𝐽)‘𝑆)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑆)))

Proof of Theorem cnclsi

Step	Hyp	Ref	Expression
1		cntop1 23466	. . . . 5 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐽 ∈ Top)
2	1	adantr 486	. . . 4 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → 𝐽 ∈ Top)
3		cnvimass 6082	. . . . 5 ⊢ (◡𝐹 “ (𝐹 “ 𝑆)) ⊆ dom 𝐹
4		cnclsi.1	. . . . . . 7 ⊢ 𝑋 = ∪ 𝐽
5		eqid 2762	. . . . . . 7 ⊢ ∪ 𝐾 = ∪ 𝐾
6	4, 5	cnf 23472	. . . . . 6 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐹:𝑋⟶∪ 𝐾)
7	6	adantr 486	. . . . 5 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → 𝐹:𝑋⟶∪ 𝐾)
8	3, 7	fssdm 6726	. . . 4 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → (◡𝐹 “ (𝐹 “ 𝑆)) ⊆ 𝑋)
9		simpr 490	. . . . . . 7 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → 𝑆 ⊆ 𝑋)
10	7	fdmd 6717	. . . . . . 7 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → dom 𝐹 = 𝑋)
11	9, 10	sseqtrrd 3971	. . . . . 6 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → 𝑆 ⊆ dom 𝐹)
12		sseqin2 4172	. . . . . 6 ⊢ (𝑆 ⊆ dom 𝐹 ↔ (dom 𝐹 ∩ 𝑆) = 𝑆)
13	11, 12	sylib 221	. . . . 5 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → (dom 𝐹 ∩ 𝑆) = 𝑆)
14		dminss 6148	. . . . 5 ⊢ (dom 𝐹 ∩ 𝑆) ⊆ (◡𝐹 “ (𝐹 “ 𝑆))
15	13, 14	eqsstrrdi 3979	. . . 4 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → 𝑆 ⊆ (◡𝐹 “ (𝐹 “ 𝑆)))
16	4	clsss 23280	. . . 4 ⊢ ((𝐽 ∈ Top ∧ (◡𝐹 “ (𝐹 “ 𝑆)) ⊆ 𝑋 ∧ 𝑆 ⊆ (◡𝐹 “ (𝐹 “ 𝑆))) → ((cls‘𝐽)‘𝑆) ⊆ ((cls‘𝐽)‘(◡𝐹 “ (𝐹 “ 𝑆))))
17	2, 8, 15, 16	syl3anc 1398	. . 3 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → ((cls‘𝐽)‘𝑆) ⊆ ((cls‘𝐽)‘(◡𝐹 “ (𝐹 “ 𝑆))))
18		imassrn 6071	. . . . 5 ⊢ (𝐹 “ 𝑆) ⊆ ran 𝐹
19	7	frnd 6715	. . . . 5 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → ran 𝐹 ⊆ ∪ 𝐾)
20	18, 19	sstrid 3945	. . . 4 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → (𝐹 “ 𝑆) ⊆ ∪ 𝐾)
21	5	cncls2i 23496	. . . 4 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ (𝐹 “ 𝑆) ⊆ ∪ 𝐾) → ((cls‘𝐽)‘(◡𝐹 “ (𝐹 “ 𝑆))) ⊆ (◡𝐹 “ ((cls‘𝐾)‘(𝐹 “ 𝑆))))
22	20, 21	syldan 603	. . 3 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → ((cls‘𝐽)‘(◡𝐹 “ (𝐹 “ 𝑆))) ⊆ (◡𝐹 “ ((cls‘𝐾)‘(𝐹 “ 𝑆))))
23	17, 22	sstrd 3944	. 2 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → ((cls‘𝐽)‘𝑆) ⊆ (◡𝐹 “ ((cls‘𝐾)‘(𝐹 “ 𝑆))))
24	7	ffund 6711	. . 3 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → Fun 𝐹)
25	4	clsss3 23285	. . . . 5 ⊢ ((𝐽 ∈ Top ∧ 𝑆 ⊆ 𝑋) → ((cls‘𝐽)‘𝑆) ⊆ 𝑋)
26	1, 25	sylan 592	. . . 4 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → ((cls‘𝐽)‘𝑆) ⊆ 𝑋)
27	26, 10	sseqtrrd 3971	. . 3 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → ((cls‘𝐽)‘𝑆) ⊆ dom 𝐹)
28		funimass3 7050	. . 3 ⊢ ((Fun 𝐹 ∧ ((cls‘𝐽)‘𝑆) ⊆ dom 𝐹) → ((𝐹 “ ((cls‘𝐽)‘𝑆)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑆)) ↔ ((cls‘𝐽)‘𝑆) ⊆ (◡𝐹 “ ((cls‘𝐾)‘(𝐹 “ 𝑆)))))
29	24, 27, 28	syl2anc 596	. 2 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → ((𝐹 “ ((cls‘𝐽)‘𝑆)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑆)) ↔ ((cls‘𝐽)‘𝑆) ⊆ (◡𝐹 “ ((cls‘𝐾)‘(𝐹 “ 𝑆)))))
30	23, 29	mpbird 260	1 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑋) → (𝐹 “ ((cls‘𝐽)‘𝑆)) ⊆ ((cls‘𝐾)‘(𝐹 “ 𝑆)))

This proof depends on syntax axioms:   → wi 4   ↔ wb 209   ∧ wa 401   = wceq 1570   ∈ wcel 2145   ∩ cin 3901   ⊆ wss 3902  ∪ cuni 4870  ^◡ccnv 5658  dom cdm 5659  ran crn 5660   “ cima 5662  Fun wfun 6531  ⟶wf 6533  ‘cfv 6537  (class class class)co 7416  Topctop 23119  clsccl 23244   Cn ccn 23450

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2215  ax-ext 2734  ax-rep 5236  ax-sep 5255  ax-nul 5267  ax-pow 5334  ax-pr 5402  ax-un 7739

This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2566  df-eu 2596  df-clab 2741  df-cleq 2754  df-clel 2837  df-nfc 2911  df-ne 2958  df-ral 3079  df-rex 3089  df-reu 3368  df-rab 3415  df-v 3455  df-sbc 3743  df-csb 3851  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-nul 4283  df-if 4486  df-pw 4562  df-sn 4588  df-pr 4590  df-op 4594  df-uni 4871  df-int 4911  df-iun 4956  df-iin 4957  df-br 5108  df-opab 5172  df-mpt 5191  df-id 5554  df-xp 5665  df-rel 5666  df-cnv 5667  df-co 5668  df-dm 5669  df-rn 5670  df-res 5671  df-ima 5672  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-f1 6542  df-fo 6543  df-f1o 6544  df-fv 6545  df-ov 7419  df-oprab 7420  df-mpo 7421  df-map 8831  df-top 23120  df-topon 23137  df-cld 23245  df-cls 23247  df-cn 23453

This theorem is used by:  cncls  23500  hmeocls  23995  clsnsg  24337