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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 4502 | . . 3 ⊢ (𝑥 ∈ 𝒫 𝐵 ↔ 𝑥 ⊆ 𝐵) | |
2 | 1 | ralbii 3133 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) |
3 | dfss3 3903 | . 2 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵) | |
4 | unissb 4832 | . 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 |
Syntax hints: ↔ wb 209 ∈ wcel 2111 ∀wral 3106 ⊆ wss 3881 𝒫 cpw 4497 ∪ cuni 4800 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-11 2158 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-ex 1782 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-ral 3111 df-v 3443 df-in 3888 df-ss 3898 df-pw 4499 df-uni 4801 |
This theorem is referenced by: pwssb 4986 elpwpw 4987 elpwuni 4990 intss2 4993 rintn0 4994 dftr4 5141 uniixp 8468 fipwss 8877 dffi3 8879 uniwf 9232 numacn 9460 dfac12lem2 9555 fin23lem32 9755 isf34lem4 9788 isf34lem5 9789 fin1a2lem12 9822 itunitc1 9831 fpwwe2lem12 10052 tsksuc 10173 unirnioo 12827 restid 16699 mrcuni 16884 isacs3lem 17768 dmdprdd 19114 dprdfeq0 19137 dprdres 19143 dprdss 19144 dprdz 19145 subgdmdprd 19149 subgdprd 19150 dprd2dlem1 19156 dprd2da 19157 dmdprdsplit2lem 19160 ablfac1b 19185 lssintcl 19729 lbsextlem2 19924 lbsextlem3 19925 cssmre 20382 topgele 21535 topontopn 21545 unitg 21572 fctop 21609 cctop 21611 ppttop 21612 epttop 21614 mretopd 21697 resttopon 21766 ordtuni 21795 conncompcld 22039 islocfin 22122 kgentopon 22143 txuni2 22170 ptuni2 22181 ptbasfi 22186 xkouni 22204 prdstopn 22233 txdis 22237 txcmplem2 22247 xkococnlem 22264 qtoptop2 22304 qtopuni 22307 tgqtop 22317 opnfbas 22447 neifil 22485 filunibas 22486 trfil1 22491 flimfil 22574 cldsubg 22716 tgpconncompeqg 22717 tgpconncomp 22718 tsmsxplem1 22758 utoptop 22840 unirnblps 23026 unirnbl 23027 setsmstopn 23085 tngtopn 23256 bndth 23563 bcthlem5 23932 ovolficcss 24073 ovollb 24083 voliunlem2 24155 voliunlem3 24156 uniioovol 24183 uniioombl 24193 opnmbllem 24205 ubthlem1 28653 hsupcl 29122 hsupss 29124 hsupunss 29126 hsupval2 29192 fnpreimac 30434 unicls 31256 pwsiga 31499 sigainb 31505 insiga 31506 pwldsys 31526 ddemeas 31605 omssubadd 31668 cvmsss2 32634 dfon2lem2 33142 ntruni 33788 clsint2 33790 neibastop1 33820 neibastop2lem 33821 neibastop3 33823 topmeet 33825 topjoin 33826 fnemeet1 33827 fnemeet2 33828 fnejoin1 33829 opnmbllem0 35093 heiborlem1 35249 elrfi 39635 pwpwuni 41691 0ome 43168 |
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