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| Mirrors > Home > ILE Home > Th. List > elexi | GIF version | ||
| Description: If a class is a member of another class, it is a set. (Contributed by NM, 11-Jun-1994.) |
| Ref | Expression |
|---|---|
| elisseti.1 | ⊢ 𝐴 ∈ 𝐵 |
| Ref | Expression |
|---|---|
| elexi | ⊢ 𝐴 ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elisseti.1 | . 2 ⊢ 𝐴 ∈ 𝐵 | |
| 2 | elex 2825 | . 2 ⊢ (𝐴 ∈ 𝐵 → 𝐴 ∈ V) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝐴 ∈ V |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2203 Vcvv 2813 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1496 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-ext 2214 |
| This theorem depends on definitions: df-bi 117 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-v 2815 |
| This theorem is referenced by: elpwi2 4270 onunisuci 4553 ordsoexmid 4684 funopdmsn 5864 1oex 6655 fnoei 6685 oeiexg 6686 endisj 7075 unfiexmid 7178 snexxph 7220 2omapen 7270 djuex 7334 0ct 7398 nninfex 7412 infnninfOLD 7416 nnnninf 7417 ctssexmid 7441 nninfdcinf 7462 nninfwlporlem 7464 nninfwlpoimlemg 7466 pm54.43 7487 pw1ne3 7540 3nsssucpw1 7546 2omotaplemst 7572 prarloclemarch2 7734 opelreal 8142 elreal 8143 elreal2 8145 eqresr 8151 c0ex 8268 1ex 8269 pnfex 8327 sup3exmid 9231 2ex 9309 3ex 9313 elxr 10109 xnn0nnen 10799 lsw0 11272 ballotfilem2 13142 setsslid 13263 setsslnid 13264 bassetsnn 13269 prdsex 13482 rmodislmod 14499 fnpsr 14815 lgsdir2lem3 15903 funvtxval0d 16028 funvtxvalg 16031 funiedgvalg 16032 struct2slots2dom 16033 structiedg0val 16035 edgstruct 16059 konigsbergvtx 16477 konigsbergiedg 16478 konigsberglem1 16483 konigsberglem2 16484 konigsberglem3 16485 konigsberglem5 16487 konigsberg 16488 3dom 16762 subctctexmid 16774 0nninf 16782 nninffeq 16798 |
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