| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 4573 | . 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 3905 𝒫 cpw 4562 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 401 df-tru 1573 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-v 3457 df-ss 3922 df-pw 4564 |
| This theorem is used by: pweq 4576 pwel 5352 pwuninel 8267 marypha1lem 9389 pwwf 9775 rankpwi 9791 ackbij2lem1 10206 fictb 10232 ssfin2 10308 ssfin3ds 10318 ttukeylem2 10498 hashbcss 17068 isacs1i 17717 mreacs 17718 acsfn 17719 isacs3lem 18602 isacs5lem 18605 tgcmp 23567 imastopn 23886 fgabs 24045 fgtr 24056 trfg 24057 ssufl 24084 alexsubb 24212 cfiluweak 24460 cmetss 25484 minveclem4a 25598 minveclem4 25600 madess 28068 ldsysgenld 34559 neibastop1 36898 neibastop2lem 36899 neibastop2 36900 sstotbnd2 38453 prjcrv0 43393 isnacs3 43469 aomclem2 43810 sge0iunmptlemre 47157 |
| Copyright terms: Public domain | W3C validator |