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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 | velpw 4570 | . . 3 ⊢ (𝑥 ∈ 𝒫 𝐵 ↔ 𝑥 ⊆ 𝐵) | |
2 | 1 | ralbii 3092 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) |
3 | dfss3 3935 | . 2 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵) | |
4 | unissb 4905 | . 2 ⊢ (∪ 𝐴 ⊆ 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) | |
5 | 2, 3, 4 | 3bitr4i 302 | 1 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∪ 𝐴 ⊆ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 205 ∈ wcel 2106 ∀wral 3060 ⊆ wss 3913 𝒫 cpw 4565 ∪ cuni 4870 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-ext 2702 |
This theorem depends on definitions: df-bi 206 df-an 397 df-tru 1544 df-ex 1782 df-sb 2068 df-clab 2709 df-cleq 2723 df-clel 2809 df-ral 3061 df-v 3448 df-in 3920 df-ss 3930 df-pw 4567 df-uni 4871 |
This theorem is referenced by: pwssb 5066 elpwpw 5067 elpwuni 5070 intss2 5073 rintn0 5074 dftr4 5234 uniixp 8866 fipwss 9374 dffi3 9376 uniwf 9764 numacn 9994 dfac12lem2 10089 fin23lem32 10289 isf34lem4 10322 isf34lem5 10323 fin1a2lem12 10356 itunitc1 10365 fpwwe2lem11 10586 tsksuc 10707 unirnioo 13376 restid 17329 mrcuni 17515 isacs3lem 18445 dmdprdd 19792 dprdfeq0 19815 dprdres 19821 dprdss 19822 dprdz 19823 subgdmdprd 19827 subgdprd 19828 dprd2dlem1 19834 dprd2da 19835 dmdprdsplit2lem 19838 ablfac1b 19863 lssintcl 20482 lbsextlem2 20679 lbsextlem3 20680 cssmre 21134 topgele 22316 topontopn 22326 unitg 22354 fctop 22391 cctop 22393 ppttop 22394 epttop 22396 mretopd 22480 resttopon 22549 ordtuni 22578 conncompcld 22822 islocfin 22905 kgentopon 22926 txuni2 22953 ptuni2 22964 ptbasfi 22969 xkouni 22987 prdstopn 23016 txdis 23020 txcmplem2 23030 xkococnlem 23047 qtoptop2 23087 qtopuni 23090 tgqtop 23100 opnfbas 23230 neifil 23268 filunibas 23269 trfil1 23274 flimfil 23357 cldsubg 23499 tgpconncompeqg 23500 tgpconncomp 23501 tsmsxplem1 23541 utoptop 23623 unirnblps 23809 unirnbl 23810 setsmstopn 23870 tngtopn 24051 bndth 24358 bcthlem5 24729 ovolficcss 24870 ovollb 24880 voliunlem2 24952 voliunlem3 24953 uniioovol 24980 uniioombl 24990 opnmbllem 25002 ubthlem1 29875 hsupcl 30344 hsupss 30346 hsupunss 30348 hsupval2 30414 fnpreimac 31654 unicls 32573 pwsiga 32818 sigainb 32824 insiga 32825 pwldsys 32845 ddemeas 32924 omssubadd 32989 cvmsss2 33955 dfon2lem2 34445 ntruni 34875 clsint2 34877 neibastop1 34907 neibastop2lem 34908 neibastop3 34910 topmeet 34912 topjoin 34913 fnemeet1 34914 fnemeet2 34915 fnejoin1 34916 opnmbllem0 36187 heiborlem1 36343 elrfi 41075 pwpwuni 43387 0ome 44890 |
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