| 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 4562 | . . 3 ⊢ (𝑥 ∈ 𝒫 𝐵 ↔ 𝑥 ⊆ 𝐵) | |
| 2 | 1 | ralbii 3109 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) |
| 3 | dfss3 3920 | . 2 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵) | |
| 4 | unissb 4901 | . 2 ⊢ (∪ 𝐴 ⊆ 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) | |
| 5 | 2, 3, 4 | 3bitr4i 306 | 1 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∪ 𝐴 ⊆ 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∈ wcel 2145 ∀wral 3077 ⊆ wss 3899 𝒫 cpw 4557 ∪ cuni 4867 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-ral 3078 df-v 3453 df-ss 3916 df-pw 4559 df-uni 4868 |
| This theorem is used by: pwssb 5061 elpwpw 5062 elpwuni 5065 intss2 5068 rintn0 5069 dftr4 5218 uniixp 8933 fipwss 9405 dffi3 9407 uniwf 9809 numacn 10109 dfac12lem2 10204 fin23lem32 10403 isf34lem4 10436 isf34lem5 10437 fin1a2lem12 10470 itunitc1 10479 fpwwe2lem11 10707 tsksuc 10828 unirnioo 13561 restid 17584 mrcuni 17775 isacs3lem 18696 dmdprdd 20195 dprdfeq0 20218 dprdres 20224 dprdss 20225 dprdz 20226 subgdmdprd 20230 subgdprd 20231 dprd2dlem1 20237 dprd2da 20238 dmdprdsplit2lem 20241 ablfac1b 20266 lssintcl 21219 lbsextlem2 21417 lbsextlem3 21418 cssmre 21979 topgele 23228 topontopn 23238 unitg 23265 fctop 23302 cctop 23304 ppttop 23305 epttop 23307 mretopd 23390 resttopon 23459 ordtuni 23488 conncompcld 23732 islocfin 23816 kgentopon 23837 txuni2 23864 ptuni2 23875 ptbasfi 23880 xkouni 23898 prdstopn 23927 txdis 23931 txcmplem2 23941 xkococnlem 23958 qtoptop2 23998 qtopuni 24001 tgqtop 24011 opnfbas 24141 neifil 24179 filunibas 24180 trfil1 24185 flimfil 24268 cldsubg 24410 tgpconncompeqg 24411 tgpconncomp 24412 tsmsxplem1 24452 utoptop 24533 unirnblps 24718 unirnbl 24719 setsmstopn 24777 tngtopn 24949 bndth 25259 bcthlem5 25629 ovolficcss 25770 ovollb 25780 voliunlem2 25852 voliunlem3 25853 uniioovol 25880 uniioombl 25890 opnmbllem 25902 ubthlem1 31454 hsupcl 31923 hsupss 31925 hsupunss 31927 hsupval2 31993 fnpreimac 33246 unicls 34517 pwsiga 34744 sigainb 34751 insiga 34752 pwldsys 34772 ddemeas 34851 omssubadd 34915 cvmsss2 36008 dfon2lem2 36516 ntruni 37085 clsint2 37087 neibastop1 37117 neibastop2lem 37118 neibastop3 37120 topmeet 37122 topjoin 37123 fnemeet1 37124 fnemeet2 37125 fnejoin1 37126 opnmbllem0 38542 heiborlem1 38713 elrfi 43658 pwpwuni 46017 0ome 47483 |
| Copyright terms: Public domain | W3C validator |