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| Mirrors > Home > MPE Home > Th. List > 5cn | Structured version Visualization version GIF version | ||
| Description: The number 5 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 |
|---|---|
| 5cn | ⊢ 5 ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-5 12247 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4cn 12266 | . . 3 ⊢ 4 ∈ ℂ | |
| 3 | ax-1cn 11096 | . . 3 ⊢ 1 ∈ ℂ | |
| 4 | 2, 3 | addcli 11151 | . 2 ⊢ (4 + 1) ∈ ℂ |
| 5 | 1, 4 | eqeltri 2832 | 1 ⊢ 5 ∈ ℂ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 (class class class)co 7367 ℂcc 11036 1c1 11039 + caddc 11041 4c4 12238 5c5 12239 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2708 ax-1cn 11096 ax-addcl 11098 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-cleq 2728 df-clel 2811 df-2 12244 df-3 12245 df-4 12246 df-5 12247 |
| This theorem is referenced by: 6cn 12272 6m1e5 12307 5p2e7 12332 5p3e8 12333 5p4e9 12334 5p5e10 12715 5t2e10 12744 5recm6rec 12787 bpoly4 16024 ef01bndlem 16151 5ndvds3 16382 5ndvds6 16383 dec5dvds 17035 dec5nprm 17037 2exp11 17060 2exp16 17061 prmlem1 17078 17prm 17087 139prm 17094 163prm 17095 317prm 17096 631prm 17097 1259lem1 17101 1259lem2 17102 1259lem3 17103 1259lem4 17104 2503lem1 17107 2503lem2 17108 2503lem3 17109 4001lem1 17111 4001lem2 17112 4001lem3 17113 4001lem4 17114 4001prm 17115 log2ublem3 26912 log2ub 26913 ppiub 27167 bclbnd 27243 bposlem4 27250 bposlem5 27251 bposlem6 27252 bposlem8 27254 bposlem9 27255 lgsdir2lem1 27288 2lgslem3c 27361 2lgsoddprmlem3d 27376 ex-fac 30521 fib6 34550 hgt750lem2 34796 12lcm5e60 42447 lcmineqlem23 42490 3lexlogpow5ineq1 42493 3lexlogpow5ineq5 42499 aks4d1p1p4 42510 aks4d1p1p6 42512 aks4d1p1p7 42513 sqn5i 42717 4t5e20 42723 sq5 42726 235t711 42737 ex-decpmul 42738 inductionexd 44582 cos5t 47327 goldrasin 47330 goldracos5teq 47333 goldratmolem2 47334 ceil5half3 47794 fmtno5lem1 48016 fmtno5lem2 48017 257prm 48024 fmtno4prmfac193 48036 fmtno4nprmfac193 48037 flsqrt5 48057 139prmALT 48059 127prm 48062 5tcu2e40 48078 41prothprmlem2 48081 41prothprm 48082 2exp340mod341 48209 gbpart8 48244 gpg5order 48536 linevalexample 48871 ackval3012 49168 5m4e1 50272 |
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