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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 4553 | . 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 3890 𝒫 cpw 4542 |
| 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 3432 df-ss 3907 df-pw 4544 |
| This theorem is referenced by: pweq 4556 pwel 5320 marypha1lem 9341 pwwf 9726 rankpwi 9742 ackbij2lem1 10135 fictb 10161 ssfin2 10237 ssfin3ds 10247 ttukeylem2 10427 hashbcss 16970 isacs1i 17618 mreacs 17619 acsfn 17620 isacs3lem 18503 isacs5lem 18506 tgcmp 23380 imastopn 23699 fgabs 23858 fgtr 23869 trfg 23870 ssufl 23897 alexsubb 24025 cfiluweak 24273 cmetss 25297 minveclem4a 25411 minveclem4 25413 madess 27876 ldsysgenld 34324 neibastop1 36561 neibastop2lem 36562 neibastop2 36563 sstotbnd2 38113 prjcrv0 43084 isnacs3 43160 aomclem2 43505 sge0iunmptlemre 46865 |
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