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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 4571 | . 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 3900 𝒫 cpw 4560 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-v 3456 df-ss 3901 df-pw 4562 |
| This theorem is used by: pweq 4574 pwel 5347 pwuninel 8317 marypha1lem 9449 pwwf 9839 rankpwi 9856 ackbij2lem1 10320 fictb 10346 ssfin2 10422 ssfin3ds 10432 ttukeylem2 10612 hashbcss 17208 isacs1i 17857 mreacs 17858 acsfn 17859 isacs3lem 18742 isacs5lem 18745 tgcmp 23746 imastopn 24066 fgabs 24225 fgtr 24236 trfg 24237 ssufl 24264 alexsubb 24392 cfiluweak 24640 cmetss 25664 minveclem4a 25778 minveclem4 25780 madess 28279 ldsysgenld 34860 neibastop1 37324 neibastop2lem 37325 neibastop2 37326 sstotbnd2 38899 isnacs3 43912 aomclem2 44248 sge0iunmptlemre 47628 |
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