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Theorem ntrelmap 40468
Description: The interior function is a map from the powerset of the base set to itself. (Contributed by RP, 22-Apr-2021.)
Hypotheses
Ref Expression
ntrrn.x 𝑋 = 𝐽
ntrrn.i 𝐼 = (int‘𝐽)
Assertion
Ref Expression
ntrelmap (𝐽 ∈ Top → 𝐼 ∈ (𝒫 𝑋m 𝒫 𝑋))

Proof of Theorem ntrelmap
StepHypRef Expression
1 ntrrn.x . . 3 𝑋 = 𝐽
2 ntrrn.i . . 3 𝐼 = (int‘𝐽)
31, 2ntrf2 40467 . 2 (𝐽 ∈ Top → 𝐼:𝒫 𝑋⟶𝒫 𝑋)
41topopn 21508 . . . 4 (𝐽 ∈ Top → 𝑋𝐽)
54pwexd 5273 . . 3 (𝐽 ∈ Top → 𝒫 𝑋 ∈ V)
65, 5elmapd 8414 . 2 (𝐽 ∈ Top → (𝐼 ∈ (𝒫 𝑋m 𝒫 𝑋) ↔ 𝐼:𝒫 𝑋⟶𝒫 𝑋))
73, 6mpbird 259 1 (𝐽 ∈ Top → 𝐼 ∈ (𝒫 𝑋m 𝒫 𝑋))
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1533  wcel 2110  Vcvv 3495  𝒫 cpw 4539   cuni 4832  wf 6346  cfv 6350  (class class class)co 7150  m cmap 8400  Topctop 21495  intcnt 21619
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2156  ax-12 2172  ax-ext 2793  ax-rep 5183  ax-sep 5196  ax-nul 5203  ax-pow 5259  ax-pr 5322  ax-un 7455
This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  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 3497  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 4562  df-pr 4564  df-op 4568  df-uni 4833  df-iun 4914  df-br 5060  df-opab 5122  df-mpt 5140  df-id 5455  df-xp 5556  df-rel 5557  df-cnv 5558  df-co 5559  df-dm 5560  df-rn 5561  df-res 5562  df-ima 5563  df-iota 6309  df-fun 6352  df-fn 6353  df-f 6354  df-f1 6355  df-fo 6356  df-f1o 6357  df-fv 6358  df-ov 7153  df-oprab 7154  df-mpo 7155  df-map 8402  df-top 21496  df-topon 21513  df-ntr 21622
This theorem is referenced by: (None)
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