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Theorem clsneircomplex 45062
Description: The relative complement of the class 𝑆 exists as a subset of the base set. (Contributed by RP, 26-Jun-2021.)
Hypotheses
Ref Expression
clsneibex.d 𝐷 = (𝑃‘𝐵)
clsneibex.h 𝐻 = (𝐹 ∘ 𝐷)
clsneibex.r (𝜑 → 𝐾𝐻𝑁)
Assertion
Ref Expression
clsneircomplex (𝜑 → (𝐵 ∖ 𝑆) ∈ 𝒫 𝐵)

Proof of Theorem clsneircomplex
StepHypRef Expression
1 clsneibex.d . . 3 𝐷 = (𝑃‘𝐵)
2 clsneibex.h . . 3 𝐻 = (𝐹 ∘ 𝐷)
3 clsneibex.r . . 3 (𝜑 → 𝐾𝐻𝑁)
41, 2, 3clsneibex 45061 . 2 (𝜑 → 𝐵 ∈ V)
5 difssd 4084 . 2 (𝜑 → (𝐵 ∖ 𝑆) ⊆ 𝐵)
64, 5sselpwd 5290 1 (𝜑 → (𝐵 ∖ 𝑆) ∈ 𝒫 𝐵)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   = wceq 1570   ∈ wcel 2145  Vcvv 3451   ∖ cdif 3896  𝒫 cpw 4557   class class class wbr 5103   ∘ ccom 5655  ‘cfv 6531
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-ext 2733  ax-sep 5249  ax-nul 5260  ax-pr 5391
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-sb 2100  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-ne 2957  df-ral 3078  df-rex 3088  df-rab 3414  df-v 3453  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-br 5104  df-opab 5168  df-xp 5657  df-rel 5658  df-cnv 5659  df-co 5660  df-dm 5661  df-rn 5662  df-res 5663  df-iota 6487  df-fv 6539
This theorem is used by:  clsneiel2  45068
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