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Mirrors > Home > MPE Home > Th. List > 7cn | Structured version Visualization version GIF version |
Description: The number 7 is complex. (Contributed by David A. Wheeler, 8-Dec-2018.) |
Ref | Expression |
---|---|
7cn | ⊢ 7 ∈ ℂ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 7re 10980 | . 2 ⊢ 7 ∈ ℝ | |
2 | 1 | recni 9931 | 1 ⊢ 7 ∈ ℂ |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 1977 ℂcc 9813 7c7 10952 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-i2m1 9883 ax-1ne0 9884 ax-rrecex 9887 ax-cnre 9888 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-iota 5768 df-fv 5812 df-ov 6552 df-2 10956 df-3 10957 df-4 10958 df-5 10959 df-6 10960 df-7 10961 |
This theorem is referenced by: 8m1e7 11019 7p2e9 11049 7p3e10OLD 11050 7p3e10 11479 7t2e14 11524 7t4e28 11526 7t7e49 11529 cos2bnd 14757 23prm 15664 139prm 15669 163prm 15670 317prm 15671 631prm 15672 1259lem1 15676 1259lem2 15677 1259lem3 15678 1259lem4 15679 1259lem5 15680 1259prm 15681 2503lem1 15682 2503lem2 15683 2503lem3 15684 4001lem1 15686 4001lem4 15689 4001prm 15690 log2ublem3 24475 log2ub 24476 bclbnd 24805 bposlem8 24816 lgsdir2lem1 24850 lgsdir2lem3 24852 2lgslem3d 24924 ex-prmo 26708 fmtno5lem4 40006 257prm 40011 fmtno4nprmfac193 40024 fmtno5fac 40032 m3prm 40044 139prmALT 40049 127prm 40053 m7prm 40054 |
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