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| Mirrors > Home > ILE Home > Th. List > 1ex | GIF version | ||
| Description: 1 is a set. Common special case. (Contributed by David A. Wheeler, 7-Jul-2016.) |
| Ref | Expression |
|---|---|
| 1ex | ⊢ 1 ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-1cn 8278 | . 2 ⊢ 1 ∈ ℂ | |
| 2 | 1 | elexi 2834 | 1 ⊢ 1 ∈ V |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 Vcvv 2821 ℂcc 8183 1c1 8186 |
| This proof depends on 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 ax-1cn 8278 |
| This proof depends on definitions: df-bi 117 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-v 2823 |
| This theorem is used by: nn1suc 9332 nn0ind-raph 9773 fzprval 10505 fztpval 10506 m1expcl2 11018 1exp 11025 facnn 11186 fac0 11187 prhash2ex 11271 prodf1f 12334 fprodntrivap 12375 prod1dc 12377 fprodssdc 12381 ege2le3 12462 1nprm 12916 pcmpt 13150 ballotfilem2 13285 mvrf1fi 15219 dvexp 15954 dvef 15970 prmorcht 16299 ppiublem2 16309 bposlem5 16332 lgsdir2lem3 16371 2wlklem 16839 konigsberglem4 16954 konigsberglem5 16955 2o01f 17246 iswomni0 17325 |
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