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Mirrors > Home > ILE Home > Th. List > recni | GIF version |
Description: A real number is a complex number. (Contributed by NM, 1-Mar-1995.) |
Ref | Expression |
---|---|
recni.1 | ⊢ 𝐴 ∈ ℝ |
Ref | Expression |
---|---|
recni | ⊢ 𝐴 ∈ ℂ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-resscn 7705 | . 2 ⊢ ℝ ⊆ ℂ | |
2 | recni.1 | . 2 ⊢ 𝐴 ∈ ℝ | |
3 | 1, 2 | sselii 3089 | 1 ⊢ 𝐴 ∈ ℂ |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 1480 ℂcc 7611 ℝcr 7612 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-11 1484 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 ax-resscn 7705 |
This theorem depends on definitions: df-bi 116 df-nf 1437 df-sb 1736 df-clab 2124 df-cleq 2130 df-clel 2133 df-in 3072 df-ss 3079 |
This theorem is referenced by: resubcli 8018 ltapii 8390 nncni 8723 2cn 8784 3cn 8788 4cn 8791 5cn 8793 6cn 8795 7cn 8797 8cn 8799 9cn 8801 halfcn 8927 8th4div3 8932 nn0cni 8982 numltc 9200 sqge0i 10372 lt2sqi 10373 le2sqi 10374 sq11i 10375 sqrtmsq2i 10900 0.999... 11283 ef01bndlem 11452 sin4lt0 11462 eirraplem 11472 eirr 11474 egt2lt3 11475 sqrt2irraplemnn 11846 picn 12857 sinhalfpilem 12861 cosneghalfpi 12868 sinhalfpip 12890 sinhalfpim 12891 coshalfpip 12892 coshalfpim 12893 sincosq1sgn 12896 sincosq2sgn 12897 sincosq3sgn 12898 sincosq4sgn 12899 cosq23lt0 12903 coseq00topi 12905 sincosq1eq 12909 sincos4thpi 12910 tan4thpi 12911 sincos6thpi 12912 taupi 13228 |
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