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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 4802 | . 2 ⊢ (𝐴 ⊆ 𝐵 → 𝐴 ∈ V) |
4 | 1, 3 | ax-mp 5 | 1 ⊢ 𝐴 ∈ V |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 1990 Vcvv 3200 ⊆ wss 3574 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-v 3202 df-in 3581 df-ss 3588 |
This theorem is referenced by: zfausab 4811 ord3ex 4856 epse 5097 opabex 6483 fvclex 7138 oprabex 7156 tfrlem16 7489 oev 7594 sbthlem2 8071 phplem2 8140 php 8144 pssnn 8178 dffi3 8337 r0weon 8835 dfac3 8944 dfac5lem4 8949 dfac2 8953 hsmexlem6 9253 domtriomlem 9264 axdc3lem 9272 ac6 9302 brdom7disj 9353 brdom6disj 9354 konigthlem 9390 niex 9703 enqex 9744 npex 9808 enrex 9888 axcnex 9968 reex 10027 nnex 11026 zex 11386 qex 11800 ixxex 12186 ltweuz 12760 prmex 15391 1arithlem1 15627 1arith 15631 prdsval 16115 prdsle 16122 sectfval 16411 sscpwex 16475 issubc 16495 isfunc 16524 fullfunc 16566 fthfunc 16567 isfull 16570 isfth 16574 ipoval 17154 letsr 17227 nmznsg 17638 eqgfval 17642 isghm 17660 symgval 17799 ablfac1b 18469 lpival 19245 ltbval 19471 opsrle 19475 xrsle 19766 xrs10 19785 xrge0cmn 19788 znle 19884 cnmsgngrp 19925 psgninv 19928 cssval 20026 pjfval 20050 istopon 20717 dmtopon 20727 leordtval2 21016 lecldbas 21023 xkoopn 21392 xkouni 21402 xkoccn 21422 xkoco1cn 21460 xkoco2cn 21461 xkococn 21463 xkoinjcn 21490 uzrest 21701 ustfn 22005 ustn0 22024 imasdsf1olem 22178 qtopbaslem 22562 isphtpc 22793 tchex 23016 tchnmfval 23027 bcthlem1 23121 bcthlem5 23125 dyadmbl 23368 itg2seq 23509 lhop1lem 23776 aannenlem3 24085 psercn 24180 abelth 24195 cxpcn2 24487 vmaval 24839 sqff1o 24908 musum 24917 vmadivsum 25171 rpvmasumlem 25176 mudivsum 25219 selberglem1 25234 selberglem2 25235 selberg2lem 25239 selberg2 25240 pntrsumo1 25254 selbergr 25257 iscgrg 25407 isismt 25429 ishlg 25497 ishpg 25651 iscgra 25701 isinag 25729 isleag 25733 pthsfval 26617 spthsfval 26618 crcts 26683 cycls 26684 eupths 27060 sspval 27578 ajfval 27664 shex 28069 chex 28083 hmopex 28734 ressplusf 29650 ressmulgnn 29683 inftmrel 29734 isinftm 29735 dmvlsiga 30192 measbase 30260 ismeas 30262 isrnmeas 30263 faeval 30309 eulerpartlemmf 30437 eulerpartlemgvv 30438 signsplypnf 30627 signsply0 30628 afsval 30749 kur14lem7 31194 kur14lem9 31196 mppsval 31469 dfon2lem7 31694 colinearex 32167 poimirlem4 33413 heibor1lem 33608 rrnval 33626 lsatset 34277 lcvfbr 34307 cmtfvalN 34497 cvrfval 34555 lineset 35024 psubspset 35030 psubclsetN 35222 lautset 35368 pautsetN 35384 tendoset 36047 dicval 36465 eldiophb 37320 pellexlem3 37395 pellexlem5 37397 onfrALTlem3VD 39123 dmvolsal 40564 smfresal 40995 smfliminflem 41036 amgmlemALT 42549 |
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