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Mirrors > Home > ILE Home > Th. List > recn | GIF version |
Description: A real number is a complex number. (Contributed by NM, 10-Aug-1999.) |
Ref | Expression |
---|---|
recn | ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℂ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-resscn 7712 | . 2 ⊢ ℝ ⊆ ℂ | |
2 | 1 | sseli 3093 | 1 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℂ) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∈ wcel 1480 ℂcc 7618 ℝcr 7619 |
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 2121 ax-resscn 7712 |
This theorem depends on definitions: df-bi 116 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-in 3077 df-ss 3084 |
This theorem is referenced by: mulid1 7763 recnd 7794 pnfnre 7807 mnfnre 7808 cnegexlem1 7937 cnegexlem2 7938 cnegexlem3 7939 cnegex 7940 renegcl 8023 resubcl 8026 negf1o 8144 mul02lem2 8150 ltaddneg 8186 ltaddnegr 8187 ltaddsub2 8199 leaddsub2 8201 leltadd 8209 ltaddpos 8214 ltaddpos2 8215 posdif 8217 lenegcon1 8228 lenegcon2 8229 addge01 8234 addge02 8235 leaddle0 8239 mullt0 8242 recexre 8340 msqge0 8378 mulge0 8381 aprcl 8408 recexap 8414 ltm1 8604 prodgt02 8611 prodge02 8613 ltmul2 8614 lemul2 8615 lemul2a 8617 ltmulgt12 8623 lemulge12 8625 gt0div 8628 ge0div 8629 ltmuldiv2 8633 ltdivmul 8634 ltdivmul2 8636 ledivmul2 8638 lemuldiv2 8640 negiso 8713 cju 8719 nnge1 8743 halfpos 8951 lt2halves 8955 addltmul 8956 avgle1 8960 avgle2 8961 div4p1lem1div2 8973 nnrecl 8975 elznn0 9069 elznn 9070 nzadd 9106 zmulcl 9107 elz2 9122 gtndiv 9146 zeo 9156 supminfex 9392 eqreznegel 9406 negm 9407 irradd 9438 irrmul 9439 divlt1lt 9511 divle1le 9512 xnegneg 9616 rexsub 9636 xnegid 9642 xaddcom 9644 xaddid1 9645 xnegdi 9651 xaddass 9652 xleaddadd 9670 divelunit 9785 fzonmapblen 9964 expgt1 10331 mulexpzap 10333 leexp1a 10348 expubnd 10350 sqgt0ap 10361 lt2sq 10366 le2sq 10367 sqge0 10369 sumsqeq0 10371 bernneq 10412 bernneq2 10413 crre 10629 crim 10630 reim0 10633 mulreap 10636 rere 10637 remul2 10645 redivap 10646 immul2 10652 imdivap 10653 cjre 10654 cjreim 10675 rennim 10774 sqrt0rlem 10775 resqrexlemover 10782 absreimsq 10839 absreim 10840 absnid 10845 leabs 10846 absre 10849 absresq 10850 sqabs 10854 ltabs 10859 absdiflt 10864 absdifle 10865 lenegsq 10867 abssuble0 10875 dfabsmax 10989 max0addsup 10991 negfi 10999 minclpr 11008 reefcl 11374 efgt0 11390 reeftlcl 11395 resinval 11422 recosval 11423 resin4p 11425 recos4p 11426 resincl 11427 recoscl 11428 retanclap 11429 efieq 11442 sinbnd 11459 cosbnd 11460 absefi 11475 odd2np1 11570 infssuzex 11642 remetdval 12708 bl2ioo 12711 ioo2bl 12712 sincosq1sgn 12907 sincosq2sgn 12908 sincosq3sgn 12909 sincosq4sgn 12910 sinq12gt0 12911 triap 13224 |
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