| 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 4572 | . . 3 ⊢ (𝑥 ∈ 𝒫 𝐵 ↔ 𝑥 ⊆ 𝐵) | |
| 2 | 1 | ralbii 3114 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) |
| 3 | dfss3 3929 | . 2 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵) | |
| 4 | unissb 4911 | . 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 2146 ∀wral 3082 ⊆ wss 3908 𝒫 cpw 4567 ∪ cuni 4877 |
| 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 2148 ax-9 2156 ax-ext 2738 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2745 df-cleq 2758 df-clel 2841 df-ral 3083 df-v 3460 df-ss 3925 df-pw 4569 df-uni 4878 |
| This theorem is used by: pwssb 5072 elpwpw 5073 elpwuni 5076 intss2 5079 rintn0 5080 dftr4 5229 uniixp 8928 fipwss 9399 dffi3 9401 uniwf 9801 numacn 10052 dfac12lem2 10147 fin23lem32 10346 isf34lem4 10379 isf34lem5 10380 fin1a2lem12 10413 itunitc1 10422 fpwwe2lem11 10644 tsksuc 10765 unirnioo 13494 restid 17511 mrcuni 17702 isacs3lem 18623 dmdprdd 20102 dprdfeq0 20125 dprdres 20131 dprdss 20132 dprdz 20133 subgdmdprd 20137 subgdprd 20138 dprd2dlem1 20144 dprd2da 20145 dmdprdsplit2lem 20148 ablfac1b 20173 lssintcl 21122 lbsextlem2 21320 lbsextlem3 21321 cssmre 21880 topgele 23124 topontopn 23134 unitg 23161 fctop 23198 cctop 23200 ppttop 23201 epttop 23203 mretopd 23286 resttopon 23355 ordtuni 23384 conncompcld 23628 islocfin 23711 kgentopon 23732 txuni2 23759 ptuni2 23770 ptbasfi 23775 xkouni 23793 prdstopn 23822 txdis 23826 txcmplem2 23836 xkococnlem 23853 qtoptop2 23893 qtopuni 23896 tgqtop 23906 opnfbas 24036 neifil 24074 filunibas 24075 trfil1 24080 flimfil 24163 cldsubg 24305 tgpconncompeqg 24306 tgpconncomp 24307 tsmsxplem1 24347 utoptop 24428 unirnblps 24613 unirnbl 24614 setsmstopn 24672 tngtopn 24844 bndth 25154 bcthlem5 25524 ovolficcss 25665 ovollb 25675 voliunlem2 25747 voliunlem3 25748 uniioovol 25775 uniioombl 25785 opnmbllem 25797 ubthlem1 31259 hsupcl 31728 hsupss 31730 hsupunss 31732 hsupval2 31798 fnpreimac 33052 unicls 34324 pwsiga 34551 sigainb 34558 insiga 34559 pwldsys 34579 ddemeas 34658 omssubadd 34722 cvmsss2 35787 dfon2lem2 36295 ntruni 36879 clsint2 36881 neibastop1 36911 neibastop2lem 36912 neibastop3 36914 topmeet 36916 topjoin 36917 fnemeet1 36918 fnemeet2 36919 fnejoin1 36920 opnmbllem0 38348 heiborlem1 38503 elrfi 43466 pwpwuni 45818 0ome 47284 |
| Copyright terms: Public domain | W3C validator |