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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 11704 | . 2 ⊢ 5 = (4 + 1) | |
2 | 4cn 11723 | . . 3 ⊢ 4 ∈ ℂ | |
3 | ax-1cn 10595 | . . 3 ⊢ 1 ∈ ℂ | |
4 | 2, 3 | addcli 10647 | . 2 ⊢ (4 + 1) ∈ ℂ |
5 | 1, 4 | eqeltri 2909 | 1 ⊢ 5 ∈ ℂ |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2114 (class class class)co 7156 ℂcc 10535 1c1 10538 + caddc 10540 4c4 11695 5c5 11696 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-ext 2793 ax-1cn 10595 ax-addcl 10597 |
This theorem depends on definitions: df-bi 209 df-an 399 df-ex 1781 df-cleq 2814 df-clel 2893 df-2 11701 df-3 11702 df-4 11703 df-5 11704 |
This theorem is referenced by: 6cn 11729 6m1e5 11769 5p2e7 11794 5p3e8 11795 5p4e9 11796 5p5e10 12170 5t2e10 12199 5recm6rec 12243 bpoly4 15413 ef01bndlem 15537 dec5dvds 16400 dec5nprm 16402 2exp16 16424 prmlem1 16441 17prm 16450 139prm 16457 163prm 16458 317prm 16459 631prm 16460 1259lem1 16464 1259lem2 16465 1259lem3 16466 1259lem4 16467 2503lem1 16470 2503lem2 16471 2503lem3 16472 4001lem1 16474 4001lem2 16475 4001lem3 16476 4001lem4 16477 4001prm 16478 log2ublem3 25526 log2ub 25527 ppiub 25780 bclbnd 25856 bposlem4 25863 bposlem5 25864 bposlem6 25865 bposlem8 25867 bposlem9 25868 lgsdir2lem1 25901 2lgslem3c 25974 2lgsoddprmlem3d 25989 ex-fac 28230 fib6 31664 hgt750lem2 31923 sqn5i 39191 235t711 39197 ex-decpmul 39198 inductionexd 40525 fmtno5lem1 43735 fmtno5lem2 43736 257prm 43743 fmtno4prmfac193 43755 fmtno4nprmfac193 43756 flsqrt5 43777 139prmALT 43779 127prm 43783 2exp11 43785 5tcu2e40 43800 41prothprmlem2 43803 41prothprm 43804 2exp340mod341 43918 gbpart8 43953 linevalexample 44470 5m4e1 44918 |
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