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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 4568 | . 2 ⊢ (𝐴 ⊆ 𝐵 → 𝒫 𝐴 ⊆ 𝒫 𝐵) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝜑 → 𝒫 𝐴 ⊆ 𝒫 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ⊆ wss 3899 𝒫 cpw 4557 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-v 3452 df-ss 3916 df-pw 4559 |
| This theorem is used by: pweq 4571 pwel 5346 pwuninel 8278 marypha1lem 9410 pwwf 9796 rankpwi 9812 ackbij2lem1 10245 fictb 10271 ssfin2 10347 ssfin3ds 10357 ttukeylem2 10537 hashbcss 17121 isacs1i 17770 mreacs 17771 acsfn 17772 isacs3lem 18655 isacs5lem 18658 tgcmp 23658 imastopn 23978 fgabs 24137 fgtr 24148 trfg 24149 ssufl 24176 alexsubb 24304 cfiluweak 24552 cmetss 25576 minveclem4a 25690 minveclem4 25692 madess 28163 ldsysgenld 34704 neibastop1 37045 neibastop2lem 37046 neibastop2 37047 sstotbnd2 38589 prjcrv0 43544 isnacs3 43620 aomclem2 43961 sge0iunmptlemre 47308 |
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