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| Mirrors > Home > ILE Home > Th. List > elexd | GIF 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 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| Ref | Expression |
|---|---|
| elexd | ⊢ (𝜑 → 𝐴 ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elexd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 2 | elex 2833 | . 2 ⊢ (𝐴 ∈ 𝑉 → 𝐴 ∈ V) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → 𝐴 ∈ V) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2209 Vcvv 2821 |
| 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 4630 dmmptd 5514 relndmfv 5728 mptsuppd 6496 suppssfvg 6503 tfr1onlemsucfn 6611 tfrcllemsucfn 6624 frecrdg 6679 mapsnend 7099 mapunen 7151 unsnfidcel 7228 fnfi 7250 caseinl 7431 caseinr 7432 omniwomnimkv 7507 nninfdcinf 7511 acfun 7563 seq3val 10910 seqvalcd 10911 seqf1oglem2 10970 seqf1og 10971 hashennn 11233 wrdexg 11329 lswex 11370 ccatw2s1leng 11420 ccat2s1fvwd 11429 swrdspsleq 11453 cats1un 11507 cats1fvd 11552 s3fv0g 11577 s3fv1g 11578 s3fv2g 11579 s1s3d 11581 s1s4d 11582 s1s5d 11583 s1s6d 11584 s1s7d 11585 s2s2d 11586 s4s2d 11587 s4s3d 11588 s3s4d 11589 s2s5d 11590 s5s2d 11591 s4s4d 11592 lcmval 12857 ballotfilemsv 13302 ennnfonelemp1 13346 isstruct2r 13412 strnfvnd 13421 strfvssn 13423 strslfv2d 13444 setsslid 13452 basmex 13461 basmexd 13462 ressbas2d 13471 ressval3d 13475 imasival 13676 imasbas 13677 imasplusg 13678 imasmulr 13679 imasaddfn 13687 imasaddval 13688 imasaddf 13689 imasmulfn 13690 imasmulval 13691 imasmulf 13692 qusval 13693 qusaddflemg 13704 qusaddval 13705 qusaddf 13706 qusmulval 13707 qusmulf 13708 xpsfrnel 13714 ismgmn0 13727 gzsumvalx 13758 gzsumfzval 13760 gzsumval2 13763 ress0g 13805 ismhm 13817 mhmex 13818 0mhm 13842 qusgrp2 13965 mulgval 13974 mulgfng 13976 mulg1 13981 mulgnnp1 13982 mulgnndir 14003 issubg2m 14041 1nsgtrivd 14071 eqgval 14075 eqgen 14079 gsumvalfi 14201 prdsex 14221 prdsval 14222 prdsbaslemss 14223 prdssgrpd 14240 prdsidlem 14242 prdsmndd 14243 prds0g 14244 prdsgrpd 14246 prdsinvgd 14247 xpsval 14250 mgpplusg 14271 mgpbas 14274 rngpropd 14303 qusrng 14306 ringidval 14314 issrg 14318 ringidss 14383 ringpropd 14392 qusring2 14420 opprringb 14435 dvdsrvald 14449 dvdsrd 14450 isunitd 14462 invrfvald 14478 dvrfvald 14489 rdivmuldivd 14500 invrpropdg 14505 isrim0 14517 rhmunitinv 14534 subrgintm 14600 rrgmex 14618 aprval 14640 aprprop 14650 lssmex 14741 islss3 14765 sraval 14823 sralemg 14824 srascag 14828 sravscag 14829 sraipg 14830 sraex 14832 lidlmex 14861 lidlrsppropdg 14881 2idlmex 14887 qusrhm 14914 zrhval 15001 asclfval 15070 psrval 15099 psrbasg 15114 psrplusgg 15118 psraddcl 15120 psr0cl 15121 psr0lid 15122 psrnegcl 15123 psrlinv 15124 psrgrp 15125 psr1clfi 15128 mplsubgfilemcl 15139 istopon 15163 istps 15182 tgclb 15215 restbasg 15318 restco 15324 lmfval 15343 cnfval 15344 cnpfval 15345 cnpval 15348 txcnp 15421 txrest 15426 ismet2 15504 xmetpsmet 15519 mopnval 15592 comet 15649 reldvg 15829 dvmptclx 15868 lgseisenlem2 16288 1vgrex 16359 p1evtxdeqfilem 16650 p1evtxdeqfi 16651 p1evtxdp1fi 16652 upgriswlkdc 16699 eupth2lem3fi 16815 eupth2lembfi 16816 |
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