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| Mirrors > Home > MPE Home > Th. List > sspwi | Structured version Visualization version GIF version | ||
| Description: The powerclass preserves inclusion (inference form). (Contributed by BJ, 13-Apr-2024.) |
| Ref | Expression |
|---|---|
| sspwi.1 | ⊢ 𝐴 ⊆ 𝐵 |
| Ref | Expression |
|---|---|
| sspwi | ⊢ 𝒫 𝐴 ⊆ 𝒫 𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sspwi.1 | . 2 ⊢ 𝐴 ⊆ 𝐵 | |
| 2 | sspw 4575 | . 2 ⊢ (𝐴 ⊆ 𝐵 → 𝒫 𝐴 ⊆ 𝒫 𝐵) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝒫 𝐴 ⊆ 𝒫 𝐵 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ⊆ wss 3906 𝒫 cpw 4564 |
| 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 2148 ax-9 2156 ax-ext 2737 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-v 3459 df-ss 3923 df-pw 4566 |
| This theorem is used by: pwunss 4582 pwundif 4589 pwdom 9124 wdompwdom 9547 rankxplim 9858 hashbclem 14507 incexclem 15913 sscpwex 17894 wunfunc 17980 tsmsres 24352 cfilresi 25505 vitali 25823 sqff1o 27397 ldgenpisyslem1 34618 imambfm 34717 ballotlem2 34944 ttcpwss 37083 dssmapnvod 44804 gneispace 44918 sge0less 47164 |
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