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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 7736 | . 2 ⊢ ℝ ⊆ ℂ | |
2 | 1 | sseli 3098 | 1 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℂ) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∈ wcel 1481 ℂcc 7642 ℝcr 7643 |
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 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-11 1485 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-resscn 7736 |
This theorem depends on definitions: df-bi 116 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-in 3082 df-ss 3089 |
This theorem is referenced by: mulid1 7787 recnd 7818 pnfnre 7831 mnfnre 7832 cnegexlem1 7961 cnegexlem2 7962 cnegexlem3 7963 cnegex 7964 renegcl 8047 resubcl 8050 negf1o 8168 mul02lem2 8174 ltaddneg 8210 ltaddnegr 8211 ltaddsub2 8223 leaddsub2 8225 leltadd 8233 ltaddpos 8238 ltaddpos2 8239 posdif 8241 lenegcon1 8252 lenegcon2 8253 addge01 8258 addge02 8259 leaddle0 8263 mullt0 8266 recexre 8364 msqge0 8402 mulge0 8405 aprcl 8432 recexap 8438 ltm1 8628 prodgt02 8635 prodge02 8637 ltmul2 8638 lemul2 8639 lemul2a 8641 ltmulgt12 8647 lemulge12 8649 gt0div 8652 ge0div 8653 ltmuldiv2 8657 ltdivmul 8658 ltdivmul2 8660 ledivmul2 8662 lemuldiv2 8664 negiso 8737 cju 8743 nnge1 8767 halfpos 8975 lt2halves 8979 addltmul 8980 avgle1 8984 avgle2 8985 div4p1lem1div2 8997 nnrecl 8999 elznn0 9093 elznn 9094 nzadd 9130 zmulcl 9131 elz2 9146 gtndiv 9170 zeo 9180 supminfex 9419 eqreznegel 9433 negm 9434 irradd 9465 irrmul 9466 divlt1lt 9541 divle1le 9542 xnegneg 9646 rexsub 9666 xnegid 9672 xaddcom 9674 xaddid1 9675 xnegdi 9681 xaddass 9682 xleaddadd 9700 divelunit 9815 fzonmapblen 9995 expgt1 10362 mulexpzap 10364 leexp1a 10379 expubnd 10381 sqgt0ap 10392 lt2sq 10397 le2sq 10398 sqge0 10400 sumsqeq0 10402 bernneq 10443 bernneq2 10444 crre 10661 crim 10662 reim0 10665 mulreap 10668 rere 10669 remul2 10677 redivap 10678 immul2 10684 imdivap 10685 cjre 10686 cjreim 10707 rennim 10806 sqrt0rlem 10807 resqrexlemover 10814 absreimsq 10871 absreim 10872 absnid 10877 leabs 10878 absre 10881 absresq 10882 sqabs 10886 ltabs 10891 absdiflt 10896 absdifle 10897 lenegsq 10899 abssuble0 10907 dfabsmax 11021 max0addsup 11023 negfi 11031 minclpr 11040 reefcl 11411 efgt0 11427 reeftlcl 11432 resinval 11458 recosval 11459 resin4p 11461 recos4p 11462 resincl 11463 recoscl 11464 retanclap 11465 efieq 11478 sinbnd 11495 cosbnd 11496 absefi 11511 odd2np1 11606 infssuzex 11678 remetdval 12747 bl2ioo 12750 ioo2bl 12751 sincosq1sgn 12955 sincosq2sgn 12956 sincosq3sgn 12957 sincosq4sgn 12958 sinq12gt0 12959 relogoprlem 12997 logcxp 13026 rpcxpcl 13032 cxpcom 13065 rprelogbdiv 13082 triap 13399 trirec0 13412 |
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