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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 4540 | . 2 ⊢ (𝐴 ⊆ 𝐵 → 𝒫 𝐴 ⊆ 𝒫 𝐵) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝒫 𝐴 ⊆ 𝒫 𝐵 |
| Colors of variables: wff setvar class |
| Syntax hints: ⊆ wss 3883 𝒫 cpw 4529 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2711 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-tru 1550 df-ex 1787 df-sb 2074 df-clab 2718 df-cleq 2731 df-clel 2814 df-v 3433 df-ss 3900 df-pw 4531 |
| This theorem is referenced by: pwunss 4547 pwundif 4553 pwdom 9057 wdompwdom 9483 rankxplim 9794 hashbclem 14405 incexclem 15792 sscpwex 17773 wunfunc 17859 tsmsres 24127 cfilresi 25280 vitali 25598 sqff1o 27163 ldgenpisyslem1 34347 imambfm 34446 ballotlem2 34673 ttcpwss 36743 dssmapnvod 44464 gneispace 44578 sge0less 46835 |
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