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Mirrors > Home > MPE Home > Th. List > ssexi | Structured version Visualization version GIF version |
Description: The subset of a set is also a set. (Contributed by NM, 9-Sep-1993.) |
Ref | Expression |
---|---|
ssexi.1 | ⊢ 𝐵 ∈ V |
ssexi.2 | ⊢ 𝐴 ⊆ 𝐵 |
Ref | Expression |
---|---|
ssexi | ⊢ 𝐴 ∈ V |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ssexi.2 | . 2 ⊢ 𝐴 ⊆ 𝐵 | |
2 | ssexi.1 | . . 3 ⊢ 𝐵 ∈ V | |
3 | 2 | ssex 5189 | . 2 ⊢ (𝐴 ⊆ 𝐵 → 𝐴 ∈ V) |
4 | 1, 3 | ax-mp 5 | 1 ⊢ 𝐴 ∈ V |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2111 Vcvv 3441 ⊆ wss 3881 |
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-ext 2770 ax-sep 5167 |
This theorem depends on definitions: df-bi 210 df-an 400 df-tru 1541 df-ex 1782 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-rab 3115 df-v 3443 df-in 3888 df-ss 3898 |
This theorem is referenced by: zfausab 5197 ord3ex 5253 epse 5502 opabex 6960 mptexw 7636 fvclex 7642 oprabex 7659 mpoexw 7759 tfrlem16 8012 dffi3 8879 r0weon 9423 dfac3 9532 dfac5lem4 9537 dfac2b 9541 hsmexlem6 9842 domtriomlem 9853 axdc3lem 9861 ac6 9891 brdom7disj 9942 brdom6disj 9943 niex 10292 enqex 10333 npex 10397 nrex1 10475 enrex 10478 reex 10617 nnex 11631 zex 11978 qex 12348 ixxex 12737 ltweuz 13324 seqexw 13380 prmex 16011 prdsval 16720 prdsle 16727 sectfval 17013 sscpwex 17077 issubc 17097 isfunc 17126 fullfunc 17168 fthfunc 17169 isfull 17172 isfth 17176 ipoval 17756 letsr 17829 nmznsg 18312 eqgfval 18320 isghm 18350 lpival 20011 xrsle 20111 znle 20228 cssval 20371 pjfval 20395 ltbval 20711 opsrle 20715 istopon 21517 dmtopon 21528 leordtval2 21817 lecldbas 21824 xkoopn 22194 xkouni 22204 xkoccn 22224 xkoco1cn 22262 xkoco2cn 22263 xkococn 22265 xkoinjcn 22292 uzrest 22502 ustfn 22807 ustn0 22826 isphtpc 23599 tcphex 23821 tchnmfval 23832 bcthlem1 23928 bcthlem5 23932 dyadmbl 24204 itg2seq 24346 aannenlem3 24926 psercn 25021 abelth 25036 vmadivsum 26066 rpvmasumlem 26071 mudivsum 26114 selberglem1 26129 selberglem2 26130 selberg2lem 26134 selberg2 26135 pntrsumo1 26149 selbergr 26152 iscgrg 26306 isismt 26328 ishlg 26396 ishpg 26553 iscgra 26603 isinag 26632 isleag 26641 pthsfval 27510 spthsfval 27511 crcts 27577 cycls 27578 eupths 27985 sspval 28506 ajfval 28592 shex 28995 chex 29009 hmopex 29658 ressplusf 30663 ressmulgnn 30717 inftmrel 30859 isinftm 30860 dmvlsiga 31498 measbase 31566 ismeas 31568 isrnmeas 31569 faeval 31615 eulerpartlemmf 31743 eulerpartlemgvv 31744 signsplypnf 31930 signsply0 31931 afsval 32052 kur14lem7 32572 kur14lem9 32574 satfvsuclem1 32719 fmlasuc0 32744 mppsval 32932 dfon2lem7 33147 colinearex 33634 poimirlem4 35061 heibor1lem 35247 rrnval 35265 lsatset 36286 lcvfbr 36316 cmtfvalN 36506 cvrfval 36564 lineset 37034 psubspset 37040 psubclsetN 37232 lautset 37378 pautsetN 37394 tendoset 38055 dicval 38472 eldiophb 39698 pellexlem3 39772 pellexlem5 39774 onfrALTlem3VD 41593 dmvolsal 42986 smfresal 43420 smfliminflem 43461 amgmlemALT 45331 |
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