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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 4552 | . 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 3889 𝒫 cpw 4541 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2715 df-cleq 2728 df-clel 2811 df-v 3431 df-ss 3906 df-pw 4543 |
| This theorem is referenced by: pwunss 4559 pwundif 4565 pwdom 9067 wdompwdom 9493 rankxplim 9803 hashbclem 14414 incexclem 15801 sscpwex 17782 wunfunc 17868 tsmsres 24109 cfilresi 25262 vitali 25580 sqff1o 27145 ldgenpisyslem1 34307 imambfm 34406 ballotlem2 34633 ttcpwss 36697 dssmapnvod 44447 gneispace 44561 sge0less 46820 |
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