| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 12310 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4cn 12330 | . . 3 ⊢ 4 ∈ ℂ | |
| 3 | ax-1cn 11162 | . . 3 ⊢ 1 ∈ ℂ | |
| 4 | 2, 3 | addcli 11219 | . 2 ⊢ (4 + 1) ∈ ℂ |
| 5 | 1, 4 | eqeltri 2859 | 1 ⊢ 5 ∈ ℂ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2143 (class class class)co 7410 ℂcc 11102 1c1 11105 + caddc 11107 4c4 12301 5c5 12302 |
| This proof depends on 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 11162 ax-addcl 11164 |
| This proof depends on definitions: df-bi 210 df-an 401 df-ex 1810 df-cleq 2755 df-clel 2838 df-2 12307 df-3 12308 df-4 12309 df-5 12310 |
| This theorem is used by: 6cn 12336 6m1e5 12375 5p2e7 12400 5p3e8 12401 5p4e9 12402 5p5e10 12791 5t2e10 12820 5recm6rec 12865 bpoly4 16117 ef01bndlem 16244 5ndvds3 16475 5ndvds6 16476 dec5dvds 17128 dec5nprm 17130 2exp11 17153 2exp16 17154 prmlem1 17171 17prm 17181 139prm 17188 163prm 17189 317prm 17190 631prm 17191 1259lem1 17195 1259lem2 17196 1259lem3 17197 1259lem4 17198 2503lem1 17201 2503lem2 17202 2503lem3 17203 4001lem1 17205 4001lem2 17206 4001lem3 17207 4001lem4 17208 4001prm 17209 log2ublem3 27122 log2ub 27123 ppiub 27377 bclbnd 27453 bposlem4 27460 bposlem5 27461 bposlem6 27462 bposlem8 27464 bposlem9 27465 lgsdir2lem1 27498 2lgslem3c 27571 2lgsoddprmlem3d 27586 ex-fac 30811 fib6 34805 hgt750lem2 35048 12lcm5e60 42803 lcmineqlem23 42846 3lexlogpow5ineq1 42849 3lexlogpow5ineq5 42855 aks4d1p1p4 42866 aks4d1p1p6 42868 aks4d1p1p7 42869 25or6to4 43001 sqn5i 43074 4t5e20 43080 sq5 43083 235t711 43094 ex-decpmul 43095 inductionexd 44909 cos5t 47644 goldrasin 47647 goldracos5teq 47650 goldratmolem2 47651 ceil5half3 48111 fmtno5lem1 48333 fmtno5lem2 48334 257prm 48341 fmtno4prmfac193 48353 fmtno4nprmfac193 48354 flsqrt5 48374 139prmALT 48376 127prm 48379 5tcu2e40 48395 41prothprmlem2 48398 41prothprm 48399 2exp340mod341 48526 gbpart8 48561 gpg5order 48853 linevalexample 49203 ackval3012 49500 5m4e1 50645 |
| Copyright terms: Public domain | W3C validator |