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| Mirrors > Home > MPE Home > Th. List > 6cn | Structured version Visualization version GIF version | ||
| Description: The number 6 is a complex number. (Contributed by David A. Wheeler, 8-Dec-2018.) Reduce dependencies on axioms. (Revised by Steven Nguyen, 4-Oct-2022.) |
| Ref | Expression |
|---|---|
| 6cn | ⊢ 6 ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-6 12419 | . 2 ⊢ 6 = (5 + 1) | |
| 2 | 5cn 12441 | . . 3 ⊢ 5 ∈ ℂ | |
| 3 | ax-1cn 11268 | . . 3 ⊢ 1 ∈ ℂ | |
| 4 | 2, 3 | addcli 11325 | . 2 ⊢ (5 + 1) ∈ ℂ |
| 5 | 1, 4 | eqeltri 2859 | 1 ⊢ 6 ∈ ℂ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2146 (class class class)co 7427 ℂcc 11208 1c1 11211 + caddc 11213 5c5 12410 6c6 12411 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-ext 2735 ax-1cn 11268 ax-addcl 11270 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1812 df-cleq 2755 df-clel 2838 df-2 12415 df-3 12416 df-4 12417 df-5 12418 df-6 12419 |
| This theorem is used by: 7cn 12447 7m1e6 12484 6p2e8 12511 6p3e9 12512 8th4div3 12576 halfpm6th 12578 6p4e10 12901 6t2e12 12933 6t3e18 12934 6t5e30 12936 5recm6rec 12974 bpoly2 16235 bpoly3 16236 bpoly4 16237 efi4p 16317 ef01bndlem 16364 cos01bnd 16366 3lcm2e6woprm 16802 6lcm4e12 16803 2exp8 17278 2exp11 17279 2exp16 17280 19prm 17308 83prm 17313 163prm 17315 317prm 17316 631prm 17317 1259lem1 17321 1259lem2 17322 1259lem3 17323 1259lem4 17324 1259lem5 17325 2503lem1 17327 2503lem2 17328 2503lem3 17329 2503prm 17330 4001lem1 17331 4001lem2 17332 4001lem4 17334 4001prm 17335 sincos6thpi 26856 sincos3rdpi 26857 1cubrlem 27181 log2ublem3 27288 log2ub 27289 basellem5 27424 basellem8 27427 ppiub 27543 bclbnd 27619 bposlem8 27630 bposlem9 27631 2lgslem3d 27738 2lgsoddprmlem3d 27752 ex-exp 31063 ex-bc 31065 ex-gcd 31070 ex-lcm 31071 hgt750lemd 35330 hgt750lem2 35334 problem5 36555 60gcd6e6 43194 60lcm7e420 43200 3exp7 43243 3lexlogpow5ineq1 43244 3lexlogpow5ineq5 43250 aks4d1p1p5 43265 aks4d1p1 43266 25or6to4 43396 1p7e8 43454 sq6 43492 lhe4.4ex1a 45453 wallispi2lem2 47221 sin5tlem1 48058 sin5tlem4 48061 sin5tlem5 48062 fmtno5lem1 48777 fmtno5lem4 48780 fmtno5 48781 fmtno4prmfac 48796 fmtno5faclem2 48804 fmtno5faclem3 48805 fmtno5fac 48806 flsqrt5 48818 139prmALT 48820 127prm 48823 mod42tp1mod8 48826 2t6m3t4e0 49599 zlmodzxzequa 49747 zlmodzxzequap 49750 |
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