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| Mirrors > Home > MPE Home > Th. List > Mathboxes > clsneircomplex | Structured version Visualization version GIF version | ||
| Description: The relative complement of the class 𝑆 exists as a subset of the base set. (Contributed by RP, 26-Jun-2021.) |
| Ref | Expression |
|---|---|
| clsneibex.d | ⊢ 𝐷 = (𝑃‘𝐵) |
| clsneibex.h | ⊢ 𝐻 = (𝐹 ∘ 𝐷) |
| clsneibex.r | ⊢ (𝜑 → 𝐾𝐻𝑁) |
| Ref | Expression |
|---|---|
| clsneircomplex | ⊢ (𝜑 → (𝐵 ∖ 𝑆) ∈ 𝒫 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | clsneibex.d | . . 3 ⊢ 𝐷 = (𝑃‘𝐵) | |
| 2 | clsneibex.h | . . 3 ⊢ 𝐻 = (𝐹 ∘ 𝐷) | |
| 3 | clsneibex.r | . . 3 ⊢ (𝜑 → 𝐾𝐻𝑁) | |
| 4 | 1, 2, 3 | clsneibex 44553 | . 2 ⊢ (𝜑 → 𝐵 ∈ V) |
| 5 | difssd 4074 | . 2 ⊢ (𝜑 → (𝐵 ∖ 𝑆) ⊆ 𝐵) | |
| 6 | 4, 5 | sselpwd 5263 | 1 ⊢ (𝜑 → (𝐵 ∖ 𝑆) ∈ 𝒫 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1547 ∈ wcel 2119 Vcvv 3432 ∖ cdif 3887 𝒫 cpw 4536 class class class wbr 5079 ∘ ccom 5629 ‘cfv 6492 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2712 ax-sep 5225 ax-nul 5235 ax-pr 5369 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2719 df-cleq 2732 df-clel 2815 df-ne 2936 df-ral 3055 df-rex 3065 df-rab 3393 df-v 3434 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4269 df-if 4462 df-pw 4538 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4846 df-br 5080 df-opab 5142 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-iota 6448 df-fv 6500 |
| This theorem is referenced by: clsneiel2 44560 |
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