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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 4543 | . . 3 ⊢ (𝑥 ∈ 𝒫 𝐵 ↔ 𝑥 ⊆ 𝐵) | |
2 | 1 | ralbii 3165 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) |
3 | dfss3 3955 | . 2 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ∈ 𝒫 𝐵) | |
4 | unissb 4869 | . 2 ⊢ (∪ 𝐴 ⊆ 𝐵 ↔ ∀𝑥 ∈ 𝐴 𝑥 ⊆ 𝐵) | |
5 | 2, 3, 4 | 3bitr4i 305 | 1 ⊢ (𝐴 ⊆ 𝒫 𝐵 ↔ ∪ 𝐴 ⊆ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 208 ∈ wcel 2110 ∀wral 3138 ⊆ wss 3935 𝒫 cpw 4538 ∪ cuni 4837 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-v 3496 df-in 3942 df-ss 3951 df-pw 4540 df-uni 4838 |
This theorem is referenced by: pwssb 5022 elpwpw 5023 elpwuni 5026 rintn0 5029 dftr4 5176 uniixp 8484 fipwss 8892 dffi3 8894 uniwf 9247 numacn 9474 dfac12lem2 9569 fin23lem32 9765 isf34lem4 9798 isf34lem5 9799 fin1a2lem12 9832 itunitc1 9841 fpwwe2lem12 10062 tsksuc 10183 unirnioo 12836 restid 16706 mrcuni 16891 isacs3lem 17775 dmdprdd 19120 dprdfeq0 19143 dprdres 19149 dprdss 19150 dprdz 19151 subgdmdprd 19155 subgdprd 19156 dprd2dlem1 19162 dprd2da 19163 dmdprdsplit2lem 19166 ablfac1b 19191 lssintcl 19735 lbsextlem2 19930 lbsextlem3 19931 cssmre 20836 topgele 21537 topontopn 21547 unitg 21574 fctop 21611 cctop 21613 ppttop 21614 epttop 21616 mretopd 21699 resttopon 21768 ordtuni 21797 conncompcld 22041 islocfin 22124 kgentopon 22145 txuni2 22172 ptuni2 22183 ptbasfi 22188 xkouni 22206 prdstopn 22235 txdis 22239 txcmplem2 22249 xkococnlem 22266 qtoptop2 22306 qtopuni 22309 tgqtop 22319 opnfbas 22449 neifil 22487 filunibas 22488 trfil1 22493 flimfil 22576 cldsubg 22718 tgpconncompeqg 22719 tgpconncomp 22720 tsmsxplem1 22760 utoptop 22842 unirnblps 23028 unirnbl 23029 setsmstopn 23087 tngtopn 23258 bndth 23561 bcthlem5 23930 ovolficcss 24069 ovollb 24079 voliunlem2 24151 voliunlem3 24152 uniioovol 24179 uniioombl 24189 opnmbllem 24201 ubthlem1 28646 hsupcl 29115 hsupss 29117 hsupunss 29119 hsupval2 29185 fnpreimac 30415 unicls 31146 pwsiga 31389 sigainb 31395 insiga 31396 pwldsys 31416 ddemeas 31495 omssubadd 31558 cvmsss2 32521 dfon2lem2 33029 ntruni 33675 clsint2 33677 neibastop1 33707 neibastop2lem 33708 neibastop3 33710 topmeet 33712 topjoin 33713 fnemeet1 33714 fnemeet2 33715 fnejoin1 33716 bj-intss 34390 opnmbllem0 34927 heiborlem1 35088 elrfi 39289 pwpwuni 41317 0ome 42810 |
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