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| Mirrors > Home > MPE Home > Th. List > 3ex | Structured version Visualization version GIF version | ||
| Description: The number 3 is a set. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| 3ex | ⊢ 3 ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3cn 12347 | . 2 ⊢ 3 ∈ ℂ | |
| 2 | 1 | elexi 3472 | 1 ⊢ 3 ∈ V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2145 Vcvv 3450 ℂcc 11123 3c3 12321 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 ax-1cn 11183 ax-addcl 11185 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-v 3452 df-2 12328 df-3 12329 |
| This theorem is used by: fztpval 13642 funcnvs4 14987 iblcnlem1 26016 basellem9 27326 lgsdir2lem3 27564 axlowdimlem7 29406 axlowdimlem8 29407 axlowdimlem9 29408 axlowdimlem13 29412 3wlkdlem4 30643 3pthdlem1 30645 upgr4cycl4dv4e 30666 konigsberglem4 30736 konigsberglem5 30737 ex-pss 30909 ex-fv 30924 ex-1st 30925 ex-2nd 30926 rabren3dioph 43657 lhe4.4ex1a 45154 nnsum4primesodd 48713 nnsum4primesoddALTV 48714 usgrexmpl1lem 48938 usgrexmpl2lem 48943 usgrexmpl2nb0 48948 usgrexmpl2nb1 48949 usgrexmpl2nb2 48950 usgrexmpl2nb3 48951 usgrexmpl2nb4 48952 usgrexmpl2trifr 48954 zlmodzxzldeplem 49429 |
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