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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 11691 | . 2 ⊢ 5 = (4 + 1) | |
2 | 4cn 11710 | . . 3 ⊢ 4 ∈ ℂ | |
3 | ax-1cn 10584 | . . 3 ⊢ 1 ∈ ℂ | |
4 | 2, 3 | addcli 10636 | . 2 ⊢ (4 + 1) ∈ ℂ |
5 | 1, 4 | eqeltri 2886 | 1 ⊢ 5 ∈ ℂ |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2111 (class class class)co 7135 ℂcc 10524 1c1 10527 + caddc 10529 4c4 11682 5c5 11683 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-ext 2770 ax-1cn 10584 ax-addcl 10586 |
This theorem depends on definitions: df-bi 210 df-an 400 df-ex 1782 df-cleq 2791 df-clel 2870 df-2 11688 df-3 11689 df-4 11690 df-5 11691 |
This theorem is referenced by: 6cn 11716 6m1e5 11756 5p2e7 11781 5p3e8 11782 5p4e9 11783 5p5e10 12157 5t2e10 12186 5recm6rec 12230 bpoly4 15405 ef01bndlem 15529 dec5dvds 16390 dec5nprm 16392 2exp16 16416 prmlem1 16433 17prm 16442 139prm 16449 163prm 16450 317prm 16451 631prm 16452 1259lem1 16456 1259lem2 16457 1259lem3 16458 1259lem4 16459 2503lem1 16462 2503lem2 16463 2503lem3 16464 4001lem1 16466 4001lem2 16467 4001lem3 16468 4001lem4 16469 4001prm 16470 log2ublem3 25534 log2ub 25535 ppiub 25788 bclbnd 25864 bposlem4 25871 bposlem5 25872 bposlem6 25873 bposlem8 25875 bposlem9 25876 lgsdir2lem1 25909 2lgslem3c 25982 2lgsoddprmlem3d 25997 ex-fac 28236 fib6 31774 hgt750lem2 32033 12lcm5e60 39296 lcmineqlem23 39339 sqn5i 39479 235t711 39485 ex-decpmul 39486 inductionexd 40858 fmtno5lem1 44070 fmtno5lem2 44071 257prm 44078 fmtno4prmfac193 44090 fmtno4nprmfac193 44091 flsqrt5 44111 139prmALT 44113 127prm 44116 2exp11 44118 5tcu2e40 44133 41prothprmlem2 44136 41prothprm 44137 2exp340mod341 44251 gbpart8 44286 linevalexample 44804 ackval3012 45106 5m4e1 45325 |
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