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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 2833 | . 2 ⊢ (𝐴 ∈ 𝐵 → 𝐴 ∈ V) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝐴 ∈ V |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2209 Vcvv 2821 |
| 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 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 theorem depends on definitions: df-bi 117 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-v 2823 |
| This theorem is referenced by: elpwi2 4289 onunisuci 4572 ordsoexmid 4704 funopdmsn 5886 1oex 6685 fnoei 6715 oeiexg 6716 endisj 7112 unfiexmid 7215 snexxph 7257 2omapen 7309 djuex 7373 0ct 7437 nninfex 7451 infnninfOLD 7455 nnnninf 7456 ctssexmid 7480 nninfdcinf 7501 nninfwlporlem 7503 nninfwlpoimlemg 7505 pm54.43 7526 pw1ne3 7579 3nsssucpw1 7585 2omotaplemst 7614 prarloclemarch2 7776 opelreal 8184 elreal 8185 elreal2 8187 eqresr 8193 c0ex 8310 1ex 8311 pnfex 8369 sup3exmid 9277 2ex 9355 3ex 9359 elxr 10157 xnn0nnen 10852 lsw0 11330 ballotfilem2 13206 ballotfilemsval 13230 ballotfilemrval 13239 ballotfilemth 13259 setsslid 13381 setsslnid 13382 bassetsnn 13387 prdsex 14149 rmodislmod 14660 fnpsr 14974 lgsdir2lem3 16063 funvtxval0d 16188 funvtxvalg 16191 funiedgvalg 16192 struct2slots2dom 16193 structiedg0val 16195 edgstruct 16219 konigsbergvtx 16637 konigsbergiedg 16638 konigsberglem1 16643 konigsberglem2 16644 konigsberglem3 16645 konigsberglem5 16647 konigsberg 16648 3dom 16932 subctctexmid 16944 0nninf 16952 nninffeq 16968 |
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