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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 4730 | . 2 ⊢ (𝐴 ⊆ 𝐵 → 𝐴 ∈ V) |
4 | 1, 3 | ax-mp 5 | 1 ⊢ 𝐴 ∈ V |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 1977 Vcvv 3173 ⊆ wss 3540 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-v 3175 df-in 3547 df-ss 3554 |
This theorem is referenced by: zfausab 4738 ord3ex 4782 epse 5021 opabex 6388 fvclex 7031 oprabex 7047 tfrlem16 7376 oev 7481 sbthlem2 7956 phplem2 8025 php 8029 pssnn 8063 dffi3 8220 r0weon 8718 dfac3 8827 dfac5lem4 8832 dfac2 8836 hsmexlem6 9136 domtriomlem 9147 axdc3lem 9155 ac6 9185 brdom7disj 9234 brdom6disj 9235 konigthlem 9269 niex 9582 enqex 9623 npex 9687 enrex 9767 axcnex 9847 reex 9906 nnex 10903 zex 11263 qex 11676 ixxex 12057 ltweuz 12622 prmex 15229 1arithlem1 15465 1arith 15469 prdsval 15938 prdsle 15945 sectfval 16234 sscpwex 16298 issubc 16318 isfunc 16347 fullfunc 16389 fthfunc 16390 isfull 16393 isfth 16397 ipoval 16977 letsr 17050 nmznsg 17461 eqgfval 17465 isghm 17483 symgval 17622 ablfac1b 18292 lpival 19066 ltbval 19292 opsrle 19296 xrsle 19585 xrs10 19604 xrge0cmn 19607 znle 19703 cnmsgngrp 19744 psgninv 19747 cssval 19845 pjfval 19869 istopon 20540 leordtval2 20826 lecldbas 20833 xkoopn 21202 xkouni 21212 xkoccn 21232 xkoco1cn 21270 xkoco2cn 21271 xkococn 21273 xkoinjcn 21300 uzrest 21511 ustfn 21815 ustn0 21834 imasdsf1olem 21988 qtopbaslem 22372 isphtpc 22601 tchex 22824 tchnmfval 22835 bcthlem1 22929 bcthlem5 22933 dyadmbl 23174 itg2seq 23315 lhop1lem 23580 aannenlem3 23889 psercn 23984 abelth 23999 cxpcn2 24287 vmaval 24639 sqff1o 24708 musum 24717 vmadivsum 24971 rpvmasumlem 24976 mudivsum 25019 selberglem1 25034 selberglem2 25035 selberg2lem 25039 selberg2 25040 pntrsumo1 25054 selbergr 25057 iscgrg 25207 isismt 25229 ishlg 25297 ishpg 25451 iscgra 25501 isinag 25529 isleag 25533 sspval 26962 ajfval 27048 shex 27453 chex 27467 hmopex 28118 ressplusf 28981 ressmulgnn 29014 inftmrel 29065 isinftm 29066 dmvlsiga 29519 measbase 29587 ismeas 29589 isrnmeas 29590 faeval 29636 eulerpartlemmf 29764 eulerpartlemgvv 29765 signsplypnf 29953 signsply0 29954 afsval 30002 kur14lem7 30448 kur14lem9 30450 mppsval 30723 dfon2lem7 30938 colinearex 31337 bj-dmtopon 32242 poimirlem4 32583 heibor1lem 32778 rrnval 32796 lsatset 33295 lcvfbr 33325 cmtfvalN 33515 cvrfval 33573 lineset 34042 psubspset 34048 psubclsetN 34240 lautset 34386 pautsetN 34402 tendoset 35065 dicval 35483 eldiophb 36338 pellexlem3 36413 pellexlem5 36415 onfrALTlem3VD 38145 dmvolsal 39240 smfresal 39673 pthsfval 40927 spthsfval 40928 crctS 40994 cyclS 40995 eupths 41367 amgmlemALT 42358 |
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