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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 12424 | . 2 ⊢ 3 ∈ ℂ | |
| 2 | 1 | elexi 3473 | 1 ⊢ 3 ∈ V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2145 Vcvv 3451 ℂcc 11198 3c3 12398 |
| 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 2733 ax-1cn 11258 ax-addcl 11260 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-v 3453 df-2 12405 df-3 12406 |
| This theorem is used by: fztpval 13720 funcnvs4 15066 iblcnlem1 26108 basellem9 27416 lgsdir2lem3 27654 axlowdimlem7 29526 axlowdimlem8 29527 axlowdimlem9 29528 axlowdimlem13 29532 3wlkdlem4 30763 3pthdlem1 30765 upgr4cycl4dv4e 30786 konigsberglem4 30856 konigsberglem5 30857 ex-pss 31029 ex-fv 31044 ex-1st 31045 ex-2nd 31046 rabren3dioph 43821 lhe4.4ex1a 45312 nnsum4primesodd 48893 nnsum4primesoddALTV 48894 usgrexmpl1lem 49118 usgrexmpl2lem 49123 usgrexmpl2nb0 49128 usgrexmpl2nb1 49129 usgrexmpl2nb2 49130 usgrexmpl2nb3 49131 usgrexmpl2nb4 49132 usgrexmpl2trifr 49134 zlmodzxzldeplem 49609 |
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