| 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 4565 | . . 3 ⊢ (𝑥 ∈ 𝒫 𝐵 ↔ 𝑥 ⊆ 𝐵) | |
| 2 | 1 | ralbii 3110 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) |
| 3 | dfss3 3923 | . 2 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵) | |
| 4 | unissb 4904 | . 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 3078 ⊆ wss 3902 𝒫 cpw 4560 ∪ cuni 4870 |
| 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 2734 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2741 df-cleq 2754 df-clel 2837 df-ral 3079 df-v 3455 df-ss 3919 df-pw 4562 df-uni 4871 |
| This theorem is used by: pwssb 5065 elpwpw 5066 elpwuni 5069 intss2 5072 rintn0 5073 dftr4 5222 uniixp 8932 fipwss 9403 dffi3 9405 uniwf 9805 numacn 10056 dfac12lem2 10151 fin23lem32 10350 isf34lem4 10383 isf34lem5 10384 fin1a2lem12 10417 itunitc1 10426 fpwwe2lem11 10654 tsksuc 10775 unirnioo 13506 restid 17524 mrcuni 17715 isacs3lem 18636 dmdprdd 20134 dprdfeq0 20157 dprdres 20163 dprdss 20164 dprdz 20165 subgdmdprd 20169 subgdprd 20170 dprd2dlem1 20176 dprd2da 20177 dmdprdsplit2lem 20180 ablfac1b 20205 lssintcl 21154 lbsextlem2 21352 lbsextlem3 21353 cssmre 21912 topgele 23161 topontopn 23171 unitg 23198 fctop 23235 cctop 23237 ppttop 23238 epttop 23240 mretopd 23323 resttopon 23392 ordtuni 23421 conncompcld 23665 islocfin 23749 kgentopon 23770 txuni2 23797 ptuni2 23808 ptbasfi 23813 xkouni 23831 prdstopn 23860 txdis 23864 txcmplem2 23874 xkococnlem 23891 qtoptop2 23931 qtopuni 23934 tgqtop 23944 opnfbas 24074 neifil 24112 filunibas 24113 trfil1 24118 flimfil 24201 cldsubg 24343 tgpconncompeqg 24344 tgpconncomp 24345 tsmsxplem1 24385 utoptop 24466 unirnblps 24651 unirnbl 24652 setsmstopn 24710 tngtopn 24882 bndth 25192 bcthlem5 25562 ovolficcss 25703 ovollb 25713 voliunlem2 25785 voliunlem3 25786 uniioovol 25813 uniioombl 25823 opnmbllem 25835 ubthlem1 31359 hsupcl 31828 hsupss 31830 hsupunss 31832 hsupval2 31898 fnpreimac 33151 unicls 34421 pwsiga 34648 sigainb 34655 insiga 34656 pwldsys 34676 ddemeas 34755 omssubadd 34819 cvmsss2 35861 dfon2lem2 36369 ntruni 36954 clsint2 36956 neibastop1 36986 neibastop2lem 36987 neibastop3 36989 topmeet 36991 topjoin 36992 fnemeet1 36993 fnemeet2 36994 fnejoin1 36995 opnmbllem0 38413 heiborlem1 38569 elrfi 43547 pwpwuni 45899 0ome 47365 |
| Copyright terms: Public domain | W3C validator |