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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 12324 | . 2 ⊢ 6 = (5 + 1) | |
| 2 | 5cn 12346 | . . 3 ⊢ 5 ∈ ℂ | |
| 3 | ax-1cn 11175 | . . 3 ⊢ 1 ∈ ℂ | |
| 4 | 2, 3 | addcli 11232 | . 2 ⊢ (5 + 1) ∈ ℂ |
| 5 | 1, 4 | eqeltri 2861 | 1 ⊢ 6 ∈ ℂ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2146 (class class class)co 7419 ℂcc 11115 1c1 11118 + caddc 11120 5c5 12315 6c6 12316 |
| 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 2148 ax-9 2156 ax-ext 2737 ax-1cn 11175 ax-addcl 11177 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2757 df-clel 2840 df-2 12320 df-3 12321 df-4 12322 df-5 12323 df-6 12324 |
| This theorem is used by: 7cn 12352 7m1e6 12389 6p2e8 12416 6p3e9 12417 8th4div3 12481 halfpm6th 12483 6p4e10 12806 6t2e12 12838 6t3e18 12839 6t5e30 12841 5recm6rec 12879 bpoly2 16135 bpoly3 16136 bpoly4 16137 efi4p 16217 ef01bndlem 16264 cos01bnd 16266 3lcm2e6woprm 16697 6lcm4e12 16698 2exp8 17172 2exp11 17173 2exp16 17174 19prm 17202 83prm 17207 163prm 17209 317prm 17210 631prm 17211 1259lem1 17215 1259lem2 17216 1259lem3 17217 1259lem4 17218 1259lem5 17219 2503lem1 17221 2503lem2 17222 2503lem3 17223 2503prm 17224 4001lem1 17225 4001lem2 17226 4001lem4 17228 4001prm 17229 sincos6thpi 26734 sincos3rdpi 26735 1cubrlem 27059 log2ublem3 27166 log2ub 27167 basellem5 27302 basellem8 27305 ppiub 27421 bclbnd 27497 bposlem8 27508 bposlem9 27509 2lgslem3d 27616 2lgsoddprmlem3d 27630 ex-exp 30874 ex-bc 30876 ex-gcd 30881 ex-lcm 30882 hgt750lemd 35102 hgt750lem2 35106 problem5 36200 60gcd6e6 42831 60lcm7e420 42837 3exp7 42880 3lexlogpow5ineq1 42881 3lexlogpow5ineq5 42887 aks4d1p1p5 42902 aks4d1p1 42903 25or6to4 43033 sq6 43116 lhe4.4ex1a 45099 wallispi2lem2 46846 sin5tlem1 47670 sin5tlem4 47673 sin5tlem5 47674 fmtno5lem1 48365 fmtno5lem4 48368 fmtno5 48369 fmtno4prmfac 48384 fmtno5faclem2 48392 fmtno5faclem3 48393 fmtno5fac 48394 flsqrt5 48406 139prmALT 48408 127prm 48411 mod42tp1mod8 48414 2t6m3t4e0 49187 zlmodzxzequa 49335 zlmodzxzequap 49338 |
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