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| Mirrors > Home > MPE Home > Th. List > sspwd | Structured version Visualization version GIF version | ||
| Description: The powerclass preserves inclusion (deduction form). (Contributed by BJ, 13-Apr-2024.) |
| Ref | Expression |
|---|---|
| sspwd.1 | ⊢ (𝜑 → 𝐴 ⊆ 𝐵) |
| Ref | Expression |
|---|---|
| sspwd | ⊢ (𝜑 → 𝒫 𝐴 ⊆ 𝒫 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sspwd.1 | . 2 ⊢ (𝜑 → 𝐴 ⊆ 𝐵) | |
| 2 | sspw 4567 | . 2 ⊢ (𝐴 ⊆ 𝐵 → 𝒫 𝐴 ⊆ 𝒫 𝐵) | |
| 3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → 𝒫 𝐴 ⊆ 𝒫 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ⊆ wss 3903 𝒫 cpw 4556 |
| 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 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-v 3444 df-ss 3920 df-pw 4558 |
| This theorem is referenced by: pweq 4570 pwel 5330 marypha1lem 9350 pwwf 9733 rankpwi 9749 ackbij2lem1 10142 fictb 10168 ssfin2 10244 ssfin3ds 10254 ttukeylem2 10434 hashbcss 16946 isacs1i 17594 mreacs 17595 acsfn 17596 isacs3lem 18479 isacs5lem 18482 tgcmp 23362 imastopn 23681 fgabs 23840 fgtr 23851 trfg 23852 ssufl 23879 alexsubb 24007 cfiluweak 24255 cmetss 25289 minveclem4a 25403 minveclem4 25405 madess 27879 ldsysgenld 34344 neibastop1 36581 neibastop2lem 36582 neibastop2 36583 sstotbnd2 38054 prjcrv0 43020 isnacs3 43096 aomclem2 43441 sge0iunmptlemre 46802 |
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