Theorem cnntri 23191

Description: Property of the preimage of an interior. (Contributed by Mario Carneiro, 25-Aug-2015.)

Hypothesis

Ref	Expression
cncls2i.1	⊢ 𝑌 = ∪ 𝐾

Assertion

Ref	Expression
cnntri	⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → (◡𝐹 “ ((int‘𝐾)‘𝑆)) ⊆ ((int‘𝐽)‘(◡𝐹 “ 𝑆)))

Proof of Theorem cnntri

Step	Hyp	Ref	Expression
1		cntop1 23160	. . 3 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐽 ∈ Top)
2	1	adantr 479	. 2 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → 𝐽 ∈ Top)
3		cnvimass 6080	. . 3 ⊢ (◡𝐹 “ 𝑆) ⊆ dom 𝐹
4		eqid 2725	. . . . . 6 ⊢ ∪ 𝐽 = ∪ 𝐽
5		cncls2i.1	. . . . . 6 ⊢ 𝑌 = ∪ 𝐾
6	4, 5	cnf 23166	. . . . 5 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐹:∪ 𝐽⟶𝑌)
7	6	fdmd 6727	. . . 4 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → dom 𝐹 = ∪ 𝐽)
8	7	adantr 479	. . 3 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → dom 𝐹 = ∪ 𝐽)
9	3, 8	sseqtrid 4025	. 2 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → (◡𝐹 “ 𝑆) ⊆ ∪ 𝐽)
10		cntop2 23161	. . . 4 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐾 ∈ Top)
11	5	ntropn 22969	. . . 4 ⊢ ((𝐾 ∈ Top ∧ 𝑆 ⊆ 𝑌) → ((int‘𝐾)‘𝑆) ∈ 𝐾)
12	10, 11	sylan 578	. . 3 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → ((int‘𝐾)‘𝑆) ∈ 𝐾)
13		cnima 23185	. . 3 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ ((int‘𝐾)‘𝑆) ∈ 𝐾) → (◡𝐹 “ ((int‘𝐾)‘𝑆)) ∈ 𝐽)
14	12, 13	syldan 589	. 2 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → (◡𝐹 “ ((int‘𝐾)‘𝑆)) ∈ 𝐽)
15	5	ntrss2 22977	. . . 4 ⊢ ((𝐾 ∈ Top ∧ 𝑆 ⊆ 𝑌) → ((int‘𝐾)‘𝑆) ⊆ 𝑆)
16	10, 15	sylan 578	. . 3 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → ((int‘𝐾)‘𝑆) ⊆ 𝑆)
17		imass2 6101	. . 3 ⊢ (((int‘𝐾)‘𝑆) ⊆ 𝑆 → (◡𝐹 “ ((int‘𝐾)‘𝑆)) ⊆ (◡𝐹 “ 𝑆))
18	16, 17	syl 17	. 2 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → (◡𝐹 “ ((int‘𝐾)‘𝑆)) ⊆ (◡𝐹 “ 𝑆))
19	4	ssntr 22978	. 2 ⊢ (((𝐽 ∈ Top ∧ (◡𝐹 “ 𝑆) ⊆ ∪ 𝐽) ∧ ((◡𝐹 “ ((int‘𝐾)‘𝑆)) ∈ 𝐽 ∧ (◡𝐹 “ ((int‘𝐾)‘𝑆)) ⊆ (◡𝐹 “ 𝑆))) → (◡𝐹 “ ((int‘𝐾)‘𝑆)) ⊆ ((int‘𝐽)‘(◡𝐹 “ 𝑆)))
20	2, 9, 14, 18, 19	syl22anc 837	1 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → (◡𝐹 “ ((int‘𝐾)‘𝑆)) ⊆ ((int‘𝐽)‘(◡𝐹 “ 𝑆)))

Syntax hints:   → wi 4   ∧ wa 394   = wceq 1533   ∈ wcel 2098   ⊆ wss 3940  ∪ cuni 4903  ^◡ccnv 5671  dom cdm 5672   “ cima 5675  ‘cfv 6542  (class class class)co 7415  Topctop 22811  intcnt 22937   Cn ccn 23144

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1905  ax-6 1963  ax-7 2003  ax-8 2100  ax-9 2108  ax-10 2129  ax-11 2146  ax-12 2166  ax-ext 2696  ax-rep 5280  ax-sep 5294  ax-nul 5301  ax-pow 5359  ax-pr 5423  ax-un 7737

This theorem depends on definitions:  df-bi 206  df-an 395  df-or 846  df-3an 1086  df-tru 1536  df-fal 1546  df-ex 1774  df-nf 1778  df-sb 2060  df-mo 2528  df-eu 2557  df-clab 2703  df-cleq 2717  df-clel 2802  df-nfc 2877  df-ne 2931  df-ral 3052  df-rex 3061  df-reu 3365  df-rab 3420  df-v 3465  df-sbc 3770  df-csb 3886  df-dif 3943  df-un 3945  df-in 3947  df-ss 3957  df-nul 4319  df-if 4525  df-pw 4600  df-sn 4625  df-pr 4627  df-op 4631  df-uni 4904  df-iun 4993  df-br 5144  df-opab 5206  df-mpt 5227  df-id 5570  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-iota 6494  df-fun 6544  df-fn 6545  df-f 6546  df-f1 6547  df-fo 6548  df-f1o 6549  df-fv 6550  df-ov 7418  df-oprab 7419  df-mpo 7420  df-map 8843  df-top 22812  df-topon 22829  df-ntr 22940  df-cn 23147

This theorem is referenced by:  cnntr  23195  hmeontr  23689  cnneiima  48046

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