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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 4567 | . 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 3895 𝒫 cpw 4556 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1572 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-v 3452 df-ss 3896 df-pw 4558 |
| This theorem is used by: pweq 4570 pwel 5342 pwuninel 8292 marypha1lem 9425 pwwf 9815 rankpwi 9832 ackbij2lem1 10296 fictb 10322 ssfin2 10398 ssfin3ds 10408 ttukeylem2 10588 hashbcss 17182 isacs1i 17831 mreacs 17832 acsfn 17833 isacs3lem 18716 isacs5lem 18719 tgcmp 23719 imastopn 24039 fgabs 24198 fgtr 24209 trfg 24210 ssufl 24237 alexsubb 24365 cfiluweak 24613 cmetss 25637 minveclem4a 25751 minveclem4 25753 madess 28252 ldsysgenld 34793 neibastop1 37147 neibastop2lem 37148 neibastop2 37149 sstotbnd2 38709 isnacs3 43721 aomclem2 44057 sge0iunmptlemre 47425 |
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