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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 12350 | . 2 ⊢ 3 ∈ ℂ | |
| 2 | 1 | elexi 3475 | 1 ⊢ 3 ∈ V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2145 Vcvv 3453 ℂcc 11126 3c3 12324 |
| 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 2734 ax-1cn 11186 ax-addcl 11188 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2741 df-cleq 2754 df-clel 2837 df-v 3455 df-2 12331 df-3 12332 |
| This theorem is used by: fztpval 13645 funcnvs4 14990 iblcnlem1 26022 basellem9 27333 lgsdir2lem3 27571 axlowdimlem7 29413 axlowdimlem8 29414 axlowdimlem9 29415 axlowdimlem13 29419 3wlkdlem4 30650 3pthdlem1 30652 upgr4cycl4dv4e 30673 konigsberglem4 30743 konigsberglem5 30744 ex-pss 30916 ex-fv 30931 ex-1st 30932 ex-2nd 30933 rabren3dioph 43664 lhe4.4ex1a 45161 nnsum4primesodd 48720 nnsum4primesoddALTV 48721 usgrexmpl1lem 48945 usgrexmpl2lem 48950 usgrexmpl2nb0 48955 usgrexmpl2nb1 48956 usgrexmpl2nb2 48957 usgrexmpl2nb3 48958 usgrexmpl2nb4 48959 usgrexmpl2trifr 48961 zlmodzxzldeplem 49436 |
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