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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 12334 | . 2 ⊢ 6 = (5 + 1) | |
| 2 | 5cn 12356 | . . 3 ⊢ 5 ∈ ℂ | |
| 3 | ax-1cn 11185 | . . 3 ⊢ 1 ∈ ℂ | |
| 4 | 2, 3 | addcli 11242 | . 2 ⊢ (5 + 1) ∈ ℂ |
| 5 | 1, 4 | eqeltri 2856 | 1 ⊢ 6 ∈ ℂ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2145 (class class class)co 7414 ℂcc 11125 1c1 11128 + caddc 11130 5c5 12325 6c6 12326 |
| 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 11185 ax-addcl 11187 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2752 df-clel 2835 df-2 12330 df-3 12331 df-4 12332 df-5 12333 df-6 12334 |
| This theorem is used by: 7cn 12362 7m1e6 12399 6p2e8 12426 6p3e9 12427 8th4div3 12491 halfpm6th 12493 6p4e10 12816 6t2e12 12848 6t3e18 12849 6t5e30 12851 5recm6rec 12889 bpoly2 16146 bpoly3 16147 bpoly4 16148 efi4p 16228 ef01bndlem 16275 cos01bnd 16277 3lcm2e6woprm 16708 6lcm4e12 16709 2exp8 17183 2exp11 17184 2exp16 17185 19prm 17213 83prm 17218 163prm 17220 317prm 17221 631prm 17222 1259lem1 17226 1259lem2 17227 1259lem3 17228 1259lem4 17229 1259lem5 17230 2503lem1 17232 2503lem2 17233 2503lem3 17234 2503prm 17235 4001lem1 17236 4001lem2 17237 4001lem4 17239 4001prm 17240 sincos6thpi 26756 sincos3rdpi 26757 1cubrlem 27081 log2ublem3 27188 log2ub 27189 basellem5 27324 basellem8 27327 ppiub 27443 bclbnd 27519 bposlem8 27530 bposlem9 27531 2lgslem3d 27638 2lgsoddprmlem3d 27652 ex-exp 30933 ex-bc 30935 ex-gcd 30940 ex-lcm 30941 hgt750lemd 35159 hgt750lem2 35163 problem5 36251 60gcd6e6 42873 60lcm7e420 42879 3exp7 42922 3lexlogpow5ineq1 42923 3lexlogpow5ineq5 42929 aks4d1p1p5 42944 aks4d1p1 42945 25or6to4 43075 1p7e8 43133 sq6 43173 lhe4.4ex1a 45156 wallispi2lem2 46903 sin5tlem1 47740 sin5tlem4 47743 sin5tlem5 47744 fmtno5lem1 48459 fmtno5lem4 48462 fmtno5 48463 fmtno4prmfac 48478 fmtno5faclem2 48486 fmtno5faclem3 48487 fmtno5fac 48488 flsqrt5 48500 139prmALT 48502 127prm 48505 mod42tp1mod8 48508 2t6m3t4e0 49281 zlmodzxzequa 49429 zlmodzxzequap 49432 |
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