Theorem cnntri 21075

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 21044	. . 3 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐽 ∈ Top)
2	1	adantr 481	. 2 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → 𝐽 ∈ Top)
3		cnvimass 5485	. . 3 ⊢ (◡𝐹 “ 𝑆) ⊆ dom 𝐹
4		eqid 2622	. . . . . 6 ⊢ ∪ 𝐽 = ∪ 𝐽
5		cncls2i.1	. . . . . 6 ⊢ 𝑌 = ∪ 𝐾
6	4, 5	cnf 21050	. . . . 5 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐹:∪ 𝐽⟶𝑌)
7		fdm 6051	. . . . 5 ⊢ (𝐹:∪ 𝐽⟶𝑌 → dom 𝐹 = ∪ 𝐽)
8	6, 7	syl 17	. . . 4 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → dom 𝐹 = ∪ 𝐽)
9	8	adantr 481	. . 3 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → dom 𝐹 = ∪ 𝐽)
10	3, 9	syl5sseq 3653	. 2 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → (◡𝐹 “ 𝑆) ⊆ ∪ 𝐽)
11		cntop2 21045	. . . 4 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐾 ∈ Top)
12	5	ntropn 20853	. . . 4 ⊢ ((𝐾 ∈ Top ∧ 𝑆 ⊆ 𝑌) → ((int‘𝐾)‘𝑆) ∈ 𝐾)
13	11, 12	sylan 488	. . 3 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → ((int‘𝐾)‘𝑆) ∈ 𝐾)
14		cnima 21069	. . 3 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ ((int‘𝐾)‘𝑆) ∈ 𝐾) → (◡𝐹 “ ((int‘𝐾)‘𝑆)) ∈ 𝐽)
15	13, 14	syldan 487	. 2 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → (◡𝐹 “ ((int‘𝐾)‘𝑆)) ∈ 𝐽)
16	5	ntrss2 20861	. . . 4 ⊢ ((𝐾 ∈ Top ∧ 𝑆 ⊆ 𝑌) → ((int‘𝐾)‘𝑆) ⊆ 𝑆)
17	11, 16	sylan 488	. . 3 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → ((int‘𝐾)‘𝑆) ⊆ 𝑆)
18		imass2 5501	. . 3 ⊢ (((int‘𝐾)‘𝑆) ⊆ 𝑆 → (◡𝐹 “ ((int‘𝐾)‘𝑆)) ⊆ (◡𝐹 “ 𝑆))
19	17, 18	syl 17	. 2 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → (◡𝐹 “ ((int‘𝐾)‘𝑆)) ⊆ (◡𝐹 “ 𝑆))
20	4	ssntr 20862	. 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)))
21	2, 10, 15, 19, 20	syl22anc 1327	1 ⊢ ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝑆 ⊆ 𝑌) → (◡𝐹 “ ((int‘𝐾)‘𝑆)) ⊆ ((int‘𝐽)‘(◡𝐹 “ 𝑆)))

Syntax hints:   → wi 4   ∧ wa 384   = wceq 1483   ∈ wcel 1990   ⊆ wss 3574  ∪ cuni 4436  ^◡ccnv 5113  dom cdm 5114   “ cima 5117  ⟶wf 5884  ‘cfv 5888  (class class class)co 6650  Topctop 20698  intcnt 20821   Cn ccn 21028

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-ral 2917  df-rex 2918  df-reu 2919  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-id 5024  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-map 7859  df-top 20699  df-topon 20716  df-ntr 20824  df-cn 21031

This theorem is referenced by:  cnntr  21079  hmeontr  21572