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| Mirrors > Home > ILE Home > Th. List > elexd | Unicode version | ||
| Description: If a class is a member of another class, it is a set. (Contributed by Glauco Siliprandi, 11-Oct-2020.) |
| Ref | Expression |
|---|---|
| elexd.1 |
|
| Ref | Expression |
|---|---|
| elexd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elexd.1 |
. 2
| |
| 2 | elex 2833 |
. 2
| |
| 3 | 1, 2 | syl 14 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-v 2823 |
| This theorem is used by: ifexd 4632 dmmptd 5517 relndmfv 5731 mptsuppd 6500 suppssfvg 6507 tfr1onlemsucfn 6615 tfrcllemsucfn 6628 frecrdg 6683 mapsnend 7103 mapunen 7155 unsnfidcel 7232 fnfi 7254 caseinl 7437 caseinr 7438 omniwomnimkv 7513 nninfdcinf 7517 acfun 7569 seq3val 10918 seqvalcd 10919 seqf1oglem2 10978 seqf1og 10979 hashennn 11241 wrdexg 11337 lswex 11378 ccatw2s1leng 11428 ccat2s1fvwd 11437 swrdspsleq 11461 cats1un 11515 cats1fvd 11560 s3fv0g 11585 s3fv1g 11586 s3fv2g 11587 s1s3d 11589 s1s4d 11590 s1s5d 11591 s1s6d 11592 s1s7d 11593 s2s2d 11594 s4s2d 11595 s4s3d 11596 s3s4d 11597 s2s5d 11598 s5s2d 11599 s4s4d 11600 lcmval 12866 ballotfilemsv 13311 ennnfonelemp1 13355 isstruct2r 13421 strnfvnd 13430 strfvssn 13432 strslfv2d 13453 setsslid 13461 basmex 13470 basmexd 13471 ressbas2d 13481 ressval3d 13485 imasival 13686 imasbas 13687 imasplusg 13688 imasmulr 13689 imasaddfn 13697 imasaddval 13698 imasaddf 13699 imasmulfn 13700 imasmulval 13701 imasmulf 13702 qusval 13703 qusaddflemg 13714 qusaddval 13715 qusaddf 13716 qusmulval 13717 qusmulf 13718 xpsfrnel 13724 ismgmn0 13737 gzsumvalx 13768 gzsumfzval 13770 gzsumval2 13773 ress0g 13815 ismhm 13827 mhmex 13828 0mhm 13852 qusgrp2 13975 mulgval 13984 mulgfng 13986 mulg1 13991 mulgnnp1 13992 mulgnndir 14013 issubg2m 14051 1nsgtrivd 14081 eqgval 14085 eqgen 14089 gsumvalfi 14242 prdsex 14279 prdsval 14280 prdsbaslemss 14281 prdssgrpd 14298 prdsidlem 14300 prdsmndd 14301 prds0g 14302 prdsgrpd 14304 prdsinvgd 14305 xpsval 14308 mgpplusg 14329 mgpbas 14332 rngpropd 14361 qusrng 14364 ringidval 14372 issrg 14376 ringidss 14441 ringpropd 14450 qusring2 14480 opprringb 14495 dvdsrvald 14509 dvdsrd 14510 isunitd 14522 invrfvald 14538 dvrfvald 14549 rdivmuldivd 14560 invrpropdg 14565 isrim0 14577 rhmunitinv 14594 subrgintm 14660 rrgmex 14678 aprval 14700 aprprop 14710 lssmex 14801 islss3 14825 sraval 14883 sralemg 14884 srascag 14888 sravscag 14889 sraipg 14890 sraex 14892 lidlmex 14921 lidlrsppropdg 14941 2idlmex 14947 qusrhm 14974 zrhval 15061 asclfval 15130 psrval 15159 psrbasg 15178 psrplusgg 15182 psraddcl 15184 psrmulrg 15186 psrmulclfilem 15189 psr0cl 15191 psr0lid 15192 psrnegcl 15193 psrlinv 15194 psrgrp 15195 psr1clfi 15198 psrlidmfi 15199 psrdifi 15202 psrdirfi 15203 mplsubgfilemcl 15215 istopon 15239 istps 15258 tgclb 15291 restbasg 15394 restco 15400 lmfval 15419 cnfval 15420 cnpfval 15421 cnpval 15424 txcnp 15497 txrest 15502 ismet2 15580 xmetpsmet 15595 mopnval 15668 comet 15725 reldvg 15905 dvmptclx 15944 lgseisenlem2 16395 1vgrex 16466 p1evtxdeqfilem 16757 p1evtxdeqfi 16758 p1evtxdp1fi 16759 upgriswlkdc 16806 eupth2lem3fi 16922 eupth2lembfi 16923 |
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