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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 12307 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4cn 12327 | . . 3 ⊢ 4 ∈ ℂ | |
| 3 | ax-1cn 11159 | . . 3 ⊢ 1 ∈ ℂ | |
| 4 | 2, 3 | addcli 11216 | . 2 ⊢ (4 + 1) ∈ ℂ |
| 5 | 1, 4 | eqeltri 2859 | 1 ⊢ 5 ∈ ℂ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2143 (class class class)co 7412 ℂcc 11099 1c1 11102 + caddc 11104 4c4 12298 5c5 12299 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 ax-1cn 11159 ax-addcl 11161 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-ex 1810 df-cleq 2755 df-clel 2838 df-2 12304 df-3 12305 df-4 12306 df-5 12307 |
| This theorem is referenced by: 6cn 12333 6m1e5 12372 5p2e7 12397 5p3e8 12398 5p4e9 12399 5p5e10 12788 5t2e10 12817 5recm6rec 12862 bpoly4 16114 ef01bndlem 16241 5ndvds3 16472 5ndvds6 16473 dec5dvds 17125 dec5nprm 17127 2exp11 17150 2exp16 17151 prmlem1 17168 17prm 17178 139prm 17185 163prm 17186 317prm 17187 631prm 17188 1259lem1 17192 1259lem2 17193 1259lem3 17194 1259lem4 17195 2503lem1 17198 2503lem2 17199 2503lem3 17200 4001lem1 17202 4001lem2 17203 4001lem3 17204 4001lem4 17205 4001prm 17206 log2ublem3 27091 log2ub 27092 ppiub 27346 bclbnd 27422 bposlem4 27429 bposlem5 27430 bposlem6 27431 bposlem8 27433 bposlem9 27434 lgsdir2lem1 27467 2lgslem3c 27540 2lgsoddprmlem3d 27555 ex-fac 30780 fib6 34774 hgt750lem2 35017 12lcm5e60 42753 lcmineqlem23 42796 3lexlogpow5ineq1 42799 3lexlogpow5ineq5 42805 aks4d1p1p4 42816 aks4d1p1p6 42818 aks4d1p1p7 42819 25or6to4 42951 sqn5i 43024 4t5e20 43030 sq5 43033 235t711 43044 ex-decpmul 43045 inductionexd 44861 cos5t 47593 goldrasin 47596 goldracos5teq 47599 goldratmolem2 47600 ceil5half3 48060 fmtno5lem1 48282 fmtno5lem2 48283 257prm 48290 fmtno4prmfac193 48302 fmtno4nprmfac193 48303 flsqrt5 48323 139prmALT 48325 127prm 48328 5tcu2e40 48344 41prothprmlem2 48347 41prothprm 48348 2exp340mod341 48475 gbpart8 48510 gpg5order 48802 linevalexample 49152 ackval3012 49449 5m4e1 50574 |
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