| Metamath Proof Explorer |
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Related theorems GIF version |
| Description: Any class is a subclass of the universal class. |
| Ref | Expression |
|---|---|
| ssv | ⊢ A ⊆ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elisset 1820 | . 2 ⊢ (x ∈ A → x ∈ V) | |
| 2 | 1 | ssriv 2072 | 1 ⊢ A ⊆ V |
| Colors of variables: wff set class |
| Syntax hints: Vcvv 1814 ⊆ wss 2050 |
| This theorem is referenced by: inv1 2303 unv 2304 vss 2311 pssv 2314 disj2 2320 pwv 2506 trv 2697 intabs 2738 dmv 3333 dmresi 3405 resid 3406 ssrnres 3487 cocnvcnv1 3511 fnf 3634 oprabss 4012 df1st2 4132 df2nd2 4133 fiint 4572 fiintOLD 4573 0vfval 8221 vxveqv 10467 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 964 ax-gen 965 ax-8 966 ax-10 968 ax-12 970 ax-17 973 ax-4 975 ax-5o 977 ax-6o 980 ax-9o 1125 ax-10o 1142 ax-16 1212 ax-11o 1220 ax-ext 1462 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 983 df-sb 1174 df-clab 1467 df-cleq 1472 df-clel 1475 df-v 1815 df-in 2054 df-ss 2056 |