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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 2827 | . 2 ⊢ (𝐴 ∈ 𝐵 → 𝐴 ∈ V) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝐴 ∈ V |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2205 Vcvv 2815 |
| 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 2216 |
| This theorem depends on definitions: df-bi 117 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-v 2817 |
| This theorem is referenced by: elpwi2 4275 onunisuci 4558 ordsoexmid 4689 funopdmsn 5869 1oex 6668 fnoei 6698 oeiexg 6699 endisj 7088 unfiexmid 7191 snexxph 7233 2omapen 7283 djuex 7347 0ct 7411 nninfex 7425 infnninfOLD 7429 nnnninf 7430 ctssexmid 7454 nninfdcinf 7475 nninfwlporlem 7477 nninfwlpoimlemg 7479 pm54.43 7500 pw1ne3 7553 3nsssucpw1 7559 2omotaplemst 7588 prarloclemarch2 7750 opelreal 8158 elreal 8159 elreal2 8161 eqresr 8167 c0ex 8284 1ex 8285 pnfex 8343 sup3exmid 9248 2ex 9326 3ex 9330 elxr 10128 xnn0nnen 10823 lsw0 11297 ballotfilem2 13172 ballotfilemsval 13196 ballotfilemrval 13205 ballotfilemth 13225 setsslid 13347 setsslnid 13348 bassetsnn 13353 prdsex 14114 rmodislmod 14625 fnpsr 14941 lgsdir2lem3 16029 funvtxval0d 16154 funvtxvalg 16157 funiedgvalg 16158 struct2slots2dom 16159 structiedg0val 16161 edgstruct 16185 konigsbergvtx 16603 konigsbergiedg 16604 konigsberglem1 16609 konigsberglem2 16610 konigsberglem3 16611 konigsberglem5 16613 konigsberg 16614 3dom 16888 subctctexmid 16900 0nninf 16908 nninffeq 16924 |
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