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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 4563 | . 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 3899 𝒫 cpw 4552 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2706 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1544 df-ex 1781 df-sb 2068 df-clab 2713 df-cleq 2726 df-clel 2809 df-v 3440 df-ss 3916 df-pw 4554 |
| This theorem is referenced by: pweq 4566 pwel 5324 marypha1lem 9334 pwwf 9717 rankpwi 9733 ackbij2lem1 10126 fictb 10152 ssfin2 10228 ssfin3ds 10238 ttukeylem2 10418 hashbcss 16930 isacs1i 17578 mreacs 17579 acsfn 17580 isacs3lem 18463 isacs5lem 18466 tgcmp 23343 imastopn 23662 fgabs 23821 fgtr 23832 trfg 23833 ssufl 23860 alexsubb 23988 cfiluweak 24236 cmetss 25270 minveclem4a 25384 minveclem4 25386 madess 27848 ldsysgenld 34266 neibastop1 36502 neibastop2lem 36503 neibastop2 36504 sstotbnd2 37914 prjcrv0 42818 isnacs3 42894 aomclem2 43239 sge0iunmptlemre 46601 |
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