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Mirrors > Home > MPE Home > Th. List > vsnid | Structured version Visualization version GIF version |
Description: A setvar variable is a member of its singleton. (Contributed by David A. Wheeler, 8-Dec-2018.) |
Ref | Expression |
---|---|
vsnid | ⊢ 𝑥 ∈ {𝑥} |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 3497 | . 2 ⊢ 𝑥 ∈ V | |
2 | 1 | snid 4601 | 1 ⊢ 𝑥 ∈ {𝑥} |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2114 {csn 4567 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-v 3496 df-sn 4568 |
This theorem is referenced by: exsnrex 4618 rext 5341 unipw 5343 xpdifid 6025 opabiota 6746 fnressn 6920 fressnfv 6922 snnex 7480 wfrlem14 7968 wfrlem16 7970 mapsnd 8450 findcard2d 8760 ac6sfi 8762 iunfi 8812 elirrv 9060 kmlem2 9577 fin1a2lem10 9831 hsmexlem4 9851 iunfo 9961 modfsummodslem1 15147 lcmfunsnlem2lem1 15982 coprmprod 16005 coprmproddvdslem 16006 lbsextlem4 19933 coe1fzgsumdlem 20469 evl1gsumdlem 20519 frlmlbs 20941 maducoeval2 21249 dishaus 21990 dis2ndc 22068 dislly 22105 dissnlocfin 22137 comppfsc 22140 txdis 22240 txdis1cn 22243 txkgen 22260 isufil2 22516 alexsubALTlem4 22658 tmdgsum 22703 dscopn 23183 ovolfiniun 24102 volfiniun 24148 jensen 25566 uvtx01vtx 27179 cplgr1vlem 27211 unidifsnel 30295 extdg1id 31053 esum2dlem 31351 bnj1498 32333 funen1cnv 32357 cvmlift2lem1 32549 frrlem12 33134 frrlem14 33136 funpartlem 33403 topdifinffinlem 34631 fvineqsneq 34696 pibt2 34701 finixpnum 34892 mbfresfi 34953 pclfinN 37051 mzpcompact2lem 39368 fourierdlem48 42459 sge0sup 42693 funressnvmo 43300 c0snmgmhm 44205 |
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