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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 12245 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4cn 12264 | . . 3 ⊢ 4 ∈ ℂ | |
| 3 | ax-1cn 11094 | . . 3 ⊢ 1 ∈ ℂ | |
| 4 | 2, 3 | addcli 11149 | . 2 ⊢ (4 + 1) ∈ ℂ |
| 5 | 1, 4 | eqeltri 2836 | 1 ⊢ 5 ∈ ℂ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2119 (class class class)co 7363 ℂcc 11034 1c1 11037 + caddc 11039 4c4 12236 5c5 12237 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2712 ax-1cn 11094 ax-addcl 11096 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-ex 1787 df-cleq 2732 df-clel 2815 df-2 12242 df-3 12243 df-4 12244 df-5 12245 |
| This theorem is referenced by: 6cn 12270 6m1e5 12305 5p2e7 12330 5p3e8 12331 5p4e9 12332 5p5e10 12713 5t2e10 12742 5recm6rec 12785 bpoly4 16022 ef01bndlem 16149 5ndvds3 16380 5ndvds6 16381 dec5dvds 17033 dec5nprm 17035 2exp11 17058 2exp16 17059 prmlem1 17076 17prm 17085 139prm 17092 163prm 17093 317prm 17094 631prm 17095 1259lem1 17099 1259lem2 17100 1259lem3 17101 1259lem4 17102 2503lem1 17105 2503lem2 17106 2503lem3 17107 4001lem1 17109 4001lem2 17110 4001lem3 17111 4001lem4 17112 4001prm 17113 log2ublem3 26937 log2ub 26938 ppiub 27192 bclbnd 27268 bposlem4 27275 bposlem5 27276 bposlem6 27277 bposlem8 27279 bposlem9 27280 lgsdir2lem1 27313 2lgslem3c 27386 2lgsoddprmlem3d 27401 ex-fac 30546 fib6 34597 hgt750lem2 34843 12lcm5e60 42500 lcmineqlem23 42543 3lexlogpow5ineq1 42546 3lexlogpow5ineq5 42552 aks4d1p1p4 42563 aks4d1p1p6 42565 aks4d1p1p7 42566 sqn5i 42769 4t5e20 42775 sq5 42778 235t711 42789 ex-decpmul 42790 inductionexd 44606 cos5t 47349 goldrasin 47352 goldracos5teq 47355 goldratmolem2 47356 ceil5half3 47816 fmtno5lem1 48038 fmtno5lem2 48039 257prm 48046 fmtno4prmfac193 48058 fmtno4nprmfac193 48059 flsqrt5 48079 139prmALT 48081 127prm 48084 5tcu2e40 48100 41prothprmlem2 48103 41prothprm 48104 2exp340mod341 48231 gbpart8 48266 gpg5order 48558 linevalexample 48893 ackval3012 49190 5m4e1 50294 |
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