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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 2692 | . 2 ⊢ (𝐴 ∈ 𝑉 → 𝐴 ∈ V) | |
3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → 𝐴 ∈ V) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∈ wcel 1480 Vcvv 2681 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1423 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-ext 2119 |
This theorem depends on definitions: df-bi 116 df-sb 1736 df-clab 2124 df-cleq 2130 df-clel 2133 df-v 2683 |
This theorem is referenced by: dmmptd 5248 tfr1onlemsucfn 6230 tfrcllemsucfn 6243 frecrdg 6298 unsnfidcel 6802 fnfi 6818 caseinl 6969 caseinr 6970 acfun 7056 seq3val 10224 seqvalcd 10225 hashennn 10519 lcmval 11733 hashdvds 11886 ennnfonelemp1 11908 isstruct2r 11959 strnfvnd 11968 strfvssn 11970 strslfv2d 11990 setsslid 11998 ressid2 12007 ressval2 12008 istopon 12169 istps 12188 tgclb 12223 restbasg 12326 restco 12332 lmfval 12350 cnfval 12352 cnpfval 12353 cnpval 12356 txcnp 12429 txrest 12434 ismet2 12512 xmetpsmet 12527 mopnval 12600 comet 12657 reldvg 12806 dvmptclx 12838 |
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