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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 4556 | . 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 3895 𝒫 cpw 4545 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1805 ax-4 1819 ax-5 1920 ax-6 1977 ax-7 2018 ax-8 2134 ax-9 2142 ax-ext 2724 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-tru 1553 df-ex 1790 df-sb 2081 df-clab 2731 df-cleq 2744 df-clel 2827 df-v 3446 df-ss 3912 df-pw 4547 |
| This theorem is referenced by: pweq 4559 pwel 5328 pwuninel 8239 marypha1lem 9365 pwwf 9751 rankpwi 9767 ackbij2lem1 10160 fictb 10186 ssfin2 10263 ssfin3ds 10273 ttukeylem2 10453 hashbcss 17012 isacs1i 17661 mreacs 17662 acsfn 17663 isacs3lem 18546 isacs5lem 18549 tgcmp 23430 imastopn 23749 fgabs 23908 fgtr 23919 trfg 23920 ssufl 23947 alexsubb 24075 cfiluweak 24323 cmetss 25347 minveclem4a 25461 minveclem4 25463 madess 27925 ldsysgenld 34401 neibastop1 36657 neibastop2lem 36658 neibastop2 36659 sstotbnd2 38211 prjcrv0 43153 isnacs3 43229 aomclem2 43570 sge0iunmptlemre 46927 |
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