Theorem dssmapclsntr 40499

Description: The closure and interior operators on a topology are duals of each other. See also kur14lem2 32454. (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 40498	. . . 4 ⊢ (𝐽 ∈ Top → 𝐼 = (𝐷‘𝐾))
7	6	eqcomd 2827	. . 3 ⊢ (𝐽 ∈ Top → (𝐷‘𝐾) = 𝐼)
8	1	topopn 21514	. . . . 5 ⊢ (𝐽 ∈ Top → 𝑋 ∈ 𝐽)
9	4, 5, 8	dssmapf1od 40387	. . . 4 ⊢ (𝐽 ∈ Top → 𝐷:(𝒫 𝑋 ↑m 𝒫 𝑋)–1-1-onto→(𝒫 𝑋 ↑m 𝒫 𝑋))
10	1, 2	clselmap 40497	. . . 4 ⊢ (𝐽 ∈ Top → 𝐾 ∈ (𝒫 𝑋 ↑m 𝒫 𝑋))
11		f1ocnvfv 7035	. . . 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 586	. . 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 40386	. . 3 ⊢ (𝐽 ∈ Top → ◡𝐷 = 𝐷)
15	14	fveq1d 6672	. 2 ⊢ (𝐽 ∈ Top → (◡𝐷‘𝐼) = (𝐷‘𝐼))
16	13, 15	eqtr3d 2858	1 ⊢ (𝐽 ∈ Top → 𝐾 = (𝐷‘𝐼))

Syntax hints:   → wi 4   = wceq 1537   ∈ wcel 2114  Vcvv 3494   ∖ cdif 3933  𝒫 cpw 4539  ∪ cuni 4838   ↦ cmpt 5146  ^◡ccnv 5554  –1-1-onto→wf1o 6354  ‘cfv 6355  (class class class)co 7156   ↑_m cmap 8406  Topctop 21501  intcnt 21625  clsccl 21626

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2793  ax-rep 5190  ax-sep 5203  ax-nul 5210  ax-pow 5266  ax-pr 5330  ax-un 7461

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1540  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-ral 3143  df-rex 3144  df-reu 3145  df-rab 3147  df-v 3496  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4839  df-int 4877  df-iun 4921  df-iin 4922  df-br 5067  df-opab 5129  df-mpt 5147  df-id 5460  df-xp 5561  df-rel 5562  df-cnv 5563  df-co 5564  df-dm 5565  df-rn 5566  df-res 5567  df-ima 5568  df-iota 6314  df-fun 6357  df-fn 6358  df-f 6359  df-f1 6360  df-fo 6361  df-f1o 6362  df-fv 6363  df-ov 7159  df-oprab 7160  df-mpo 7161  df-1st 7689  df-2nd 7690  df-map 8408  df-top 21502  df-cld 21627  df-ntr 21628  df-cls 21629

This theorem is referenced by: (None)