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Mirrors > Home > MPE Home > Th. List > sspwuni | Structured version Visualization version GIF version |
Description: Subclass relationship for power class and union. (Contributed by NM, 18-Jul-2006.) |
Ref | Expression |
---|---|
sspwuni | ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∪ 𝐴 ⊆ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | selpw 4115 | . . 3 ⊢ (𝑥 ∈ 𝒫 𝐵 ↔ 𝑥 ⊆ 𝐵) | |
2 | 1 | ralbii 2963 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) |
3 | dfss3 3558 | . 2 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵) | |
4 | unissb 4405 | . 2 ⊢ (∪ 𝐴 ⊆ 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) | |
5 | 2, 3, 4 | 3bitr4i 291 | 1 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∪ 𝐴 ⊆ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 195 ∈ wcel 1977 ∀wral 2896 ⊆ wss 3540 𝒫 cpw 4108 ∪ cuni 4372 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ral 2901 df-v 3175 df-in 3547 df-ss 3554 df-pw 4110 df-uni 4373 |
This theorem is referenced by: pwssb 4548 elpwuni 4549 rintn0 4552 dftr4 4685 uniixp 7817 fipwss 8218 dffi3 8220 uniwf 8565 numacn 8755 dfac12lem2 8849 fin23lem32 9049 isf34lem4 9082 isf34lem5 9083 fin1a2lem12 9116 itunitc1 9125 fpwwe2lem12 9342 tsksuc 9463 unirnioo 12144 restid 15917 mrcuni 16104 isacs3lem 16989 dmdprdd 18221 dprdfeq0 18244 dprdres 18250 dprdss 18251 dprdz 18252 subgdmdprd 18256 subgdprd 18257 dprd2dlem1 18263 dprd2da 18264 dmdprdsplit2lem 18267 ablfac1b 18292 lssintcl 18785 lbsextlem2 18980 lbsextlem3 18981 cssmre 19856 topgele 20549 topontopn 20557 unitg 20582 fctop 20618 cctop 20620 ppttop 20621 epttop 20623 mretopd 20706 toponmre 20707 resttopon 20775 ordtuni 20804 concompcld 21047 islocfin 21130 kgentopon 21151 txuni2 21178 ptuni2 21189 ptbasfi 21194 xkouni 21212 prdstopn 21241 txdis 21245 txcmplem2 21255 xkococnlem 21272 qtoptop2 21312 qtopuni 21315 tgqtop 21325 opnfbas 21456 neifil 21494 filunibas 21495 trfil1 21500 flimfil 21583 cldsubg 21724 tgpconcompeqg 21725 tgpconcomp 21726 tsmsxplem1 21766 utoptop 21848 unirnblps 22034 unirnbl 22035 setsmstopn 22093 tngtopn 22264 bndth 22565 bcthlem5 22933 ovolficcss 23045 ovollb 23054 voliunlem2 23126 voliunlem3 23127 uniioovol 23153 uniioombl 23163 opnmbllem 23175 ubthlem1 27110 hsupcl 27582 hsupss 27584 hsupunss 27586 hsupval2 27652 unicls 29277 pwsiga 29520 sigainb 29526 insiga 29527 ddemeas 29626 omssubadd 29689 cvmsss2 30510 dfon2lem2 30933 ntruni 31492 clsint2 31494 neibastop1 31524 neibastop2lem 31525 neibastop3 31527 topmeet 31529 topjoin 31530 fnemeet1 31531 fnemeet2 31532 fnejoin1 31533 bj-sspwpw 32238 opnmbllem0 32615 heiborlem1 32780 elrfi 36275 pwpwuni 38250 0ome 39419 |
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