| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 4547 | . . 3 ⊢ (𝑥 ∈ 𝒫 𝐵 ↔ 𝑥 ⊆ 𝐵) | |
| 2 | 1 | ralbii 3084 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) |
| 3 | dfss3 3911 | . 2 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵) | |
| 4 | unissb 4884 | . 2 ⊢ (∪ 𝐴 ⊆ 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) | |
| 5 | 2, 3, 4 | 3bitr4i 303 | 1 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∪ 𝐴 ⊆ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∈ wcel 2114 ∀wral 3052 ⊆ wss 3890 𝒫 cpw 4542 ∪ cuni 4851 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ral 3053 df-v 3432 df-ss 3907 df-pw 4544 df-uni 4852 |
| This theorem is referenced by: pwssb 5044 elpwpw 5045 elpwuni 5048 intss2 5051 rintn0 5052 dftr4 5199 uniixp 8862 fipwss 9335 dffi3 9337 uniwf 9734 numacn 9962 dfac12lem2 10058 fin23lem32 10257 isf34lem4 10290 isf34lem5 10291 fin1a2lem12 10324 itunitc1 10333 fpwwe2lem11 10555 tsksuc 10676 unirnioo 13393 restid 17387 mrcuni 17578 isacs3lem 18499 dmdprdd 19967 dprdfeq0 19990 dprdres 19996 dprdss 19997 dprdz 19998 subgdmdprd 20002 subgdprd 20003 dprd2dlem1 20009 dprd2da 20010 dmdprdsplit2lem 20013 ablfac1b 20038 lssintcl 20950 lbsextlem2 21149 lbsextlem3 21150 cssmre 21683 topgele 22905 topontopn 22915 unitg 22942 fctop 22979 cctop 22981 ppttop 22982 epttop 22984 mretopd 23067 resttopon 23136 ordtuni 23165 conncompcld 23409 islocfin 23492 kgentopon 23513 txuni2 23540 ptuni2 23551 ptbasfi 23556 xkouni 23574 prdstopn 23603 txdis 23607 txcmplem2 23617 xkococnlem 23634 qtoptop2 23674 qtopuni 23677 tgqtop 23687 opnfbas 23817 neifil 23855 filunibas 23856 trfil1 23861 flimfil 23944 cldsubg 24086 tgpconncompeqg 24087 tgpconncomp 24088 tsmsxplem1 24128 utoptop 24209 unirnblps 24394 unirnbl 24395 setsmstopn 24453 tngtopn 24625 bndth 24935 bcthlem5 25305 ovolficcss 25446 ovollb 25456 voliunlem2 25528 voliunlem3 25529 uniioovol 25556 uniioombl 25566 opnmbllem 25578 ubthlem1 30956 hsupcl 31425 hsupss 31427 hsupunss 31429 hsupval2 31495 fnpreimac 32758 unicls 34063 pwsiga 34290 sigainb 34296 insiga 34297 pwldsys 34317 ddemeas 34396 omssubadd 34460 cvmsss2 35472 dfon2lem2 35980 ntruni 36525 clsint2 36527 neibastop1 36557 neibastop2lem 36558 neibastop3 36560 topmeet 36562 topjoin 36563 fnemeet1 36564 fnemeet2 36565 fnejoin1 36566 opnmbllem0 37991 heiborlem1 38146 elrfi 43140 pwpwuni 45506 0ome 46975 |
| Copyright terms: Public domain | W3C validator |