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Theorem cldrcl 14845
Description: Reverse closure of the closed set operation. (Contributed by Stefan O'Rear, 22-Feb-2015.)
Assertion
Ref Expression
cldrcl (𝐶 ∈ (Clsd‘𝐽) → 𝐽 ∈ Top)

Proof of Theorem cldrcl
StepHypRef Expression
1 fncld 14841 . . . 4 Clsd Fn Top
2 fnrel 5428 . . . 4 (Clsd Fn Top → Rel Clsd)
31, 2ax-mp 5 . . 3 Rel Clsd
4 relelfvdm 5671 . . 3 ((Rel Clsd ∧ 𝐶 ∈ (Clsd‘𝐽)) → 𝐽 ∈ dom Clsd)
53, 4mpan 424 . 2 (𝐶 ∈ (Clsd‘𝐽) → 𝐽 ∈ dom Clsd)
6 fndm 5429 . . 3 (Clsd Fn Top → dom Clsd = Top)
71, 6ax-mp 5 . 2 dom Clsd = Top
85, 7eleqtrdi 2324 1 (𝐶 ∈ (Clsd‘𝐽) → 𝐽 ∈ Top)
Colors of variables: wff set class
Syntax hints:  wi 4   = wceq 1397  wcel 2202  dom cdm 4725  Rel wrel 4730   Fn wfn 5321  cfv 5326  Topctop 14740  Clsdccld 14835
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-un 4530
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ral 2515  df-rex 2516  df-rab 2519  df-v 2804  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-br 4089  df-opab 4151  df-mpt 4152  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-iota 5286  df-fun 5328  df-fn 5329  df-fv 5334  df-cld 14838
This theorem is referenced by:  cldss  14848  cldopn  14850  difopn  14851  uncld  14856  cldcls  14857  clsss2  14872
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