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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 12228 | . 2 ⊢ 5 = (4 + 1) | |
2 | 4cn 12247 | . . 3 ⊢ 4 ∈ ℂ | |
3 | ax-1cn 11118 | . . 3 ⊢ 1 ∈ ℂ | |
4 | 2, 3 | addcli 11170 | . 2 ⊢ (4 + 1) ∈ ℂ |
5 | 1, 4 | eqeltri 2828 | 1 ⊢ 5 ∈ ℂ |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2106 (class class class)co 7362 ℂcc 11058 1c1 11061 + caddc 11063 4c4 12219 5c5 12220 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-ext 2702 ax-1cn 11118 ax-addcl 11120 |
This theorem depends on definitions: df-bi 206 df-an 397 df-ex 1782 df-cleq 2723 df-clel 2809 df-2 12225 df-3 12226 df-4 12227 df-5 12228 |
This theorem is referenced by: 6cn 12253 6m1e5 12293 5p2e7 12318 5p3e8 12319 5p4e9 12320 5p5e10 12698 5t2e10 12727 5recm6rec 12771 bpoly4 15953 ef01bndlem 16077 dec5dvds 16947 dec5nprm 16949 2exp11 16973 2exp16 16974 prmlem1 16991 17prm 17000 139prm 17007 163prm 17008 317prm 17009 631prm 17010 1259lem1 17014 1259lem2 17015 1259lem3 17016 1259lem4 17017 2503lem1 17020 2503lem2 17021 2503lem3 17022 4001lem1 17024 4001lem2 17025 4001lem3 17026 4001lem4 17027 4001prm 17028 log2ublem3 26335 log2ub 26336 ppiub 26589 bclbnd 26665 bposlem4 26672 bposlem5 26673 bposlem6 26674 bposlem8 26676 bposlem9 26677 lgsdir2lem1 26710 2lgslem3c 26783 2lgsoddprmlem3d 26798 ex-fac 29458 fib6 33095 hgt750lem2 33354 12lcm5e60 40538 lcmineqlem23 40581 3lexlogpow5ineq1 40584 3lexlogpow5ineq5 40590 aks4d1p1p4 40601 aks4d1p1p6 40603 aks4d1p1p7 40604 sqn5i 40857 235t711 40863 ex-decpmul 40864 inductionexd 42549 fmtno5lem1 45865 fmtno5lem2 45866 257prm 45873 fmtno4prmfac193 45885 fmtno4nprmfac193 45886 flsqrt5 45906 139prmALT 45908 127prm 45911 5tcu2e40 45927 41prothprmlem2 45930 41prothprm 45931 2exp340mod341 46045 gbpart8 46080 linevalexample 46596 ackval3012 46898 5m4e1 47364 |
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