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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 12409 | . 2 ⊢ 6 = (5 + 1) | |
| 2 | 5cn 12431 | . . 3 ⊢ 5 ∈ ℂ | |
| 3 | ax-1cn 11258 | . . 3 ⊢ 1 ∈ ℂ | |
| 4 | 2, 3 | addcli 11315 | . 2 ⊢ (5 + 1) ∈ ℂ |
| 5 | 1, 4 | eqeltri 2857 | 1 ⊢ 6 ∈ ℂ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2145 (class class class)co 7420 ℂcc 11198 1c1 11201 + caddc 11203 5c5 12400 6c6 12401 |
| 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-ex 1813 df-cleq 2753 df-clel 2836 df-2 12405 df-3 12406 df-4 12407 df-5 12408 df-6 12409 |
| This theorem is used by: 7cn 12437 7m1e6 12474 6p2e8 12501 6p3e9 12502 8th4div3 12566 halfpm6th 12568 6p4e10 12891 6t2e12 12923 6t3e18 12924 6t5e30 12926 5recm6rec 12964 bpoly2 16223 bpoly3 16224 bpoly4 16225 efi4p 16305 ef01bndlem 16352 cos01bnd 16354 3lcm2e6woprm 16790 6lcm4e12 16791 2exp8 17266 2exp11 17267 2exp16 17268 19prm 17296 83prm 17301 163prm 17303 317prm 17304 631prm 17305 1259lem1 17309 1259lem2 17310 1259lem3 17311 1259lem4 17312 1259lem5 17313 2503lem1 17315 2503lem2 17316 2503lem3 17317 2503prm 17318 4001lem1 17319 4001lem2 17320 4001lem4 17322 4001prm 17323 sincos6thpi 26844 sincos3rdpi 26845 1cubrlem 27169 log2ublem3 27276 log2ub 27277 basellem5 27412 basellem8 27415 ppiub 27531 bclbnd 27607 bposlem8 27618 bposlem9 27619 2lgslem3d 27726 2lgsoddprmlem3d 27740 ex-exp 31051 ex-bc 31053 ex-gcd 31058 ex-lcm 31059 hgt750lemd 35277 hgt750lem2 35281 problem5 36434 60gcd6e6 43054 60lcm7e420 43060 3exp7 43103 3lexlogpow5ineq1 43104 3lexlogpow5ineq5 43110 aks4d1p1p5 43125 aks4d1p1 43126 25or6to4 43256 1p7e8 43314 sq6 43352 lhe4.4ex1a 45312 wallispi2lem2 47081 sin5tlem1 47918 sin5tlem4 47921 sin5tlem5 47922 fmtno5lem1 48637 fmtno5lem4 48640 fmtno5 48641 fmtno4prmfac 48656 fmtno5faclem2 48664 fmtno5faclem3 48665 fmtno5fac 48666 flsqrt5 48678 139prmALT 48680 127prm 48683 mod42tp1mod8 48686 2t6m3t4e0 49459 zlmodzxzequa 49607 zlmodzxzequap 49610 |
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