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| Mirrors > Home > MPE Home > Th. List > sspwi | Structured version Visualization version GIF version | ||
| Description: The powerclass preserves inclusion (inference form). (Contributed by BJ, 13-Apr-2024.) |
| Ref | Expression |
|---|---|
| sspwi.1 | ⊢ 𝐴 ⊆ 𝐵 |
| Ref | Expression |
|---|---|
| sspwi | ⊢ 𝒫 𝐴 ⊆ 𝒫 𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sspwi.1 | . 2 ⊢ 𝐴 ⊆ 𝐵 | |
| 2 | sspw 4567 | . 2 ⊢ (𝐴 ⊆ 𝐵 → 𝒫 𝐴 ⊆ 𝒫 𝐵) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝒫 𝐴 ⊆ 𝒫 𝐵 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ⊆ wss 3896 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 3897 df-pw 4558 |
| This theorem is used by: pwunss 4575 pwundif 4582 pwdom 9156 wdompwdom 9579 rankxplim 9903 hashbclem 14604 incexclem 16014 sscpwex 17999 wunfunc 18085 tsmsres 24472 cfilresi 25625 vitali 25943 sqff1o 27518 ldgenpisyslem1 34846 imambfm 34944 ballotlem2 35171 ttcpwss 37427 dssmapnvod 45157 gneispace 45271 sge0less 47538 |
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