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Theorem cnclsi 21124
 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) ∧ 𝑆𝑋) → (𝐹 “ ((cls‘𝐽)‘𝑆)) ⊆ ((cls‘𝐾)‘(𝐹𝑆)))

Proof of Theorem cnclsi
StepHypRef Expression
1 cntop1 21092 . . . . 5 (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐽 ∈ Top)
21adantr 480 . . . 4 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → 𝐽 ∈ Top)
3 cnvimass 5520 . . . . 5 (𝐹 “ (𝐹𝑆)) ⊆ dom 𝐹
4 cnclsi.1 . . . . . . . 8 𝑋 = 𝐽
5 eqid 2651 . . . . . . . 8 𝐾 = 𝐾
64, 5cnf 21098 . . . . . . 7 (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐹:𝑋 𝐾)
76adantr 480 . . . . . 6 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → 𝐹:𝑋 𝐾)
8 fdm 6089 . . . . . 6 (𝐹:𝑋 𝐾 → dom 𝐹 = 𝑋)
97, 8syl 17 . . . . 5 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → dom 𝐹 = 𝑋)
103, 9syl5sseq 3686 . . . 4 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → (𝐹 “ (𝐹𝑆)) ⊆ 𝑋)
11 simpr 476 . . . . . . 7 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → 𝑆𝑋)
1211, 9sseqtr4d 3675 . . . . . 6 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → 𝑆 ⊆ dom 𝐹)
13 sseqin2 3850 . . . . . 6 (𝑆 ⊆ dom 𝐹 ↔ (dom 𝐹𝑆) = 𝑆)
1412, 13sylib 208 . . . . 5 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → (dom 𝐹𝑆) = 𝑆)
15 dminss 5582 . . . . 5 (dom 𝐹𝑆) ⊆ (𝐹 “ (𝐹𝑆))
1614, 15syl6eqssr 3689 . . . 4 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → 𝑆 ⊆ (𝐹 “ (𝐹𝑆)))
174clsss 20906 . . . 4 ((𝐽 ∈ Top ∧ (𝐹 “ (𝐹𝑆)) ⊆ 𝑋𝑆 ⊆ (𝐹 “ (𝐹𝑆))) → ((cls‘𝐽)‘𝑆) ⊆ ((cls‘𝐽)‘(𝐹 “ (𝐹𝑆))))
182, 10, 16, 17syl3anc 1366 . . 3 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → ((cls‘𝐽)‘𝑆) ⊆ ((cls‘𝐽)‘(𝐹 “ (𝐹𝑆))))
19 imassrn 5512 . . . . 5 (𝐹𝑆) ⊆ ran 𝐹
20 frn 6091 . . . . . 6 (𝐹:𝑋 𝐾 → ran 𝐹 𝐾)
217, 20syl 17 . . . . 5 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → ran 𝐹 𝐾)
2219, 21syl5ss 3647 . . . 4 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → (𝐹𝑆) ⊆ 𝐾)
235cncls2i 21122 . . . 4 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ (𝐹𝑆) ⊆ 𝐾) → ((cls‘𝐽)‘(𝐹 “ (𝐹𝑆))) ⊆ (𝐹 “ ((cls‘𝐾)‘(𝐹𝑆))))
2422, 23syldan 486 . . 3 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → ((cls‘𝐽)‘(𝐹 “ (𝐹𝑆))) ⊆ (𝐹 “ ((cls‘𝐾)‘(𝐹𝑆))))
2518, 24sstrd 3646 . 2 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → ((cls‘𝐽)‘𝑆) ⊆ (𝐹 “ ((cls‘𝐾)‘(𝐹𝑆))))
26 ffun 6086 . . . 4 (𝐹:𝑋 𝐾 → Fun 𝐹)
277, 26syl 17 . . 3 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → Fun 𝐹)
284clsss3 20911 . . . . 5 ((𝐽 ∈ Top ∧ 𝑆𝑋) → ((cls‘𝐽)‘𝑆) ⊆ 𝑋)
291, 28sylan 487 . . . 4 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → ((cls‘𝐽)‘𝑆) ⊆ 𝑋)
3029, 9sseqtr4d 3675 . . 3 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → ((cls‘𝐽)‘𝑆) ⊆ dom 𝐹)
31 funimass3 6373 . . 3 ((Fun 𝐹 ∧ ((cls‘𝐽)‘𝑆) ⊆ dom 𝐹) → ((𝐹 “ ((cls‘𝐽)‘𝑆)) ⊆ ((cls‘𝐾)‘(𝐹𝑆)) ↔ ((cls‘𝐽)‘𝑆) ⊆ (𝐹 “ ((cls‘𝐾)‘(𝐹𝑆)))))
3227, 30, 31syl2anc 694 . 2 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → ((𝐹 “ ((cls‘𝐽)‘𝑆)) ⊆ ((cls‘𝐾)‘(𝐹𝑆)) ↔ ((cls‘𝐽)‘𝑆) ⊆ (𝐹 “ ((cls‘𝐾)‘(𝐹𝑆)))))
3325, 32mpbird 247 1 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆𝑋) → (𝐹 “ ((cls‘𝐽)‘𝑆)) ⊆ ((cls‘𝐾)‘(𝐹𝑆)))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 383   = wceq 1523   ∈ wcel 2030   ∩ cin 3606   ⊆ wss 3607  ∪ cuni 4468  ◡ccnv 5142  dom cdm 5143  ran crn 5144   “ cima 5146  Fun wfun 5920  ⟶wf 5922  ‘cfv 5926  (class class class)co 6690  Topctop 20746  clsccl 20870   Cn ccn 21076 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1762  ax-4 1777  ax-5 1879  ax-6 1945  ax-7 1981  ax-8 2032  ax-9 2039  ax-10 2059  ax-11 2074  ax-12 2087  ax-13 2282  ax-ext 2631  ax-rep 4804  ax-sep 4814  ax-nul 4822  ax-pow 4873  ax-pr 4936  ax-un 6991 This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3an 1056  df-tru 1526  df-ex 1745  df-nf 1750  df-sb 1938  df-eu 2502  df-mo 2503  df-clab 2638  df-cleq 2644  df-clel 2647  df-nfc 2782  df-ne 2824  df-ral 2946  df-rex 2947  df-reu 2948  df-rab 2950  df-v 3233  df-sbc 3469  df-csb 3567  df-dif 3610  df-un 3612  df-in 3614  df-ss 3621  df-nul 3949  df-if 4120  df-pw 4193  df-sn 4211  df-pr 4213  df-op 4217  df-uni 4469  df-int 4508  df-iun 4554  df-iin 4555  df-br 4686  df-opab 4746  df-mpt 4763  df-id 5053  df-xp 5149  df-rel 5150  df-cnv 5151  df-co 5152  df-dm 5153  df-rn 5154  df-res 5155  df-ima 5156  df-iota 5889  df-fun 5928  df-fn 5929  df-f 5930  df-f1 5931  df-fo 5932  df-f1o 5933  df-fv 5934  df-ov 6693  df-oprab 6694  df-mpt2 6695  df-map 7901  df-top 20747  df-topon 20764  df-cld 20871  df-cls 20873  df-cn 21079 This theorem is referenced by:  cncls  21126  hmeocls  21619  clsnsg  21960
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