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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 4578 | . 2 ⊢ (𝐴 ⊆ 𝐵 → 𝒫 𝐴 ⊆ 𝒫 𝐵) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝒫 𝐴 ⊆ 𝒫 𝐵 |
| Colors of variables: wff setvar class |
| Syntax hints: ⊆ wss 3913 𝒫 cpw 4567 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-ext 2741 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-tru 1570 df-ex 1807 df-sb 2098 df-clab 2748 df-cleq 2761 df-clel 2844 df-v 3465 df-ss 3930 df-pw 4569 |
| This theorem is referenced by: pwunss 4585 pwundif 4592 pwdom 9116 wdompwdom 9539 rankxplim 9850 hashbclem 14488 incexclem 15889 sscpwex 17871 wunfunc 17957 tsmsres 24269 cfilresi 25422 vitali 25740 sqff1o 27311 ldgenpisyslem1 34497 imambfm 34596 ballotlem2 34823 ttcpwss 36914 dssmapnvod 44637 gneispace 44751 sge0less 46997 |
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