Theorem dssmapclsntr 41628

Description: The closure and interior operators on a topology are duals of each other. See also kur14lem2 33069. (Contributed by RP, 22-Apr-2021.)

Hypotheses

Ref	Expression
dssmapclsntr.x	⊢ 𝑋 = ∪ 𝐽
dssmapclsntr.k	⊢ 𝐾 = (cls‘𝐽)
dssmapclsntr.i	⊢ 𝐼 = (int‘𝐽)
dssmapclsntr.o	⊢ 𝑂 = (𝑏 ∈ V ↦ (𝑓 ∈ (𝒫 𝑏 ↑m 𝒫 𝑏) ↦ (𝑠 ∈ 𝒫 𝑏 ↦ (𝑏 ∖ (𝑓‘(𝑏 ∖ 𝑠))))))
dssmapclsntr.d	⊢ 𝐷 = (𝑂‘𝑋)

Assertion

Ref	Expression
dssmapclsntr	⊢ (𝐽 ∈ Top → 𝐾 = (𝐷‘𝐼))

Distinct variable groups:   𝐽,𝑏,𝑓,𝑠   𝑓,𝐾,𝑠   𝑋,𝑏,𝑓,𝑠

Allowed substitution hints:   𝐷(𝑓,𝑠,𝑏)   𝐼(𝑓,𝑠,𝑏)   𝐾(𝑏)   𝑂(𝑓,𝑠,𝑏)

Proof of Theorem dssmapclsntr

Step	Hyp	Ref	Expression
1		dssmapclsntr.x	. . . . 5 ⊢ 𝑋 = ∪ 𝐽
2		dssmapclsntr.k	. . . . 5 ⊢ 𝐾 = (cls‘𝐽)
3		dssmapclsntr.i	. . . . 5 ⊢ 𝐼 = (int‘𝐽)
4		dssmapclsntr.o	. . . . 5 ⊢ 𝑂 = (𝑏 ∈ V ↦ (𝑓 ∈ (𝒫 𝑏 ↑m 𝒫 𝑏) ↦ (𝑠 ∈ 𝒫 𝑏 ↦ (𝑏 ∖ (𝑓‘(𝑏 ∖ 𝑠))))))
5		dssmapclsntr.d	. . . . 5 ⊢ 𝐷 = (𝑂‘𝑋)
6	1, 2, 3, 4, 5	dssmapntrcls 41627	. . . 4 ⊢ (𝐽 ∈ Top → 𝐼 = (𝐷‘𝐾))
7	6	eqcomd 2744	. . 3 ⊢ (𝐽 ∈ Top → (𝐷‘𝐾) = 𝐼)
8	1	topopn 21963	. . . . 5 ⊢ (𝐽 ∈ Top → 𝑋 ∈ 𝐽)
9	4, 5, 8	dssmapf1od 41518	. . . 4 ⊢ (𝐽 ∈ Top → 𝐷:(𝒫 𝑋 ↑m 𝒫 𝑋)–1-1-onto→(𝒫 𝑋 ↑m 𝒫 𝑋))
10	1, 2	clselmap 41626	. . . 4 ⊢ (𝐽 ∈ Top → 𝐾 ∈ (𝒫 𝑋 ↑m 𝒫 𝑋))
11		f1ocnvfv 7131	. . . 4 ⊢ ((𝐷:(𝒫 𝑋 ↑m 𝒫 𝑋)–1-1-onto→(𝒫 𝑋 ↑m 𝒫 𝑋) ∧ 𝐾 ∈ (𝒫 𝑋 ↑m 𝒫 𝑋)) → ((𝐷‘𝐾) = 𝐼 → (◡𝐷‘𝐼) = 𝐾))
12	9, 10, 11	syl2anc 583	. . 3 ⊢ (𝐽 ∈ Top → ((𝐷‘𝐾) = 𝐼 → (◡𝐷‘𝐼) = 𝐾))
13	7, 12	mpd 15	. 2 ⊢ (𝐽 ∈ Top → (◡𝐷‘𝐼) = 𝐾)
14	4, 5, 8	dssmapnvod 41517	. . 3 ⊢ (𝐽 ∈ Top → ◡𝐷 = 𝐷)
15	14	fveq1d 6758	. 2 ⊢ (𝐽 ∈ Top → (◡𝐷‘𝐼) = (𝐷‘𝐼))
16	13, 15	eqtr3d 2780	1 ⊢ (𝐽 ∈ Top → 𝐾 = (𝐷‘𝐼))

Syntax hints:   → wi 4   = wceq 1539   ∈ wcel 2108  Vcvv 3422   ∖ cdif 3880  𝒫 cpw 4530  ∪ cuni 4836   ↦ cmpt 5153  ^◡ccnv 5579  –1-1-onto→wf1o 6417  ‘cfv 6418  (class class class)co 7255   ↑_m cmap 8573  Topctop 21950  intcnt 22076  clsccl 22077

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566

This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-reu 3070  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-int 4877  df-iun 4923  df-iin 4924  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-ov 7258  df-oprab 7259  df-mpo 7260  df-1st 7804  df-2nd 7805  df-map 8575  df-top 21951  df-cld 22078  df-ntr 22079  df-cls 22080

This theorem is referenced by: (None)