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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 8224 | . 2 ⊢ ℝ ⊆ ℂ | |
| 2 | 1 | sseli 3236 | 1 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℂ) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2205 ℂcc 8130 ℝcr 8131 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-11 1555 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 ax-resscn 8224 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-in 3219 df-ss 3226 |
| This theorem is referenced by: mulrid 8276 recnd 8307 pnfnre 8320 mnfnre 8321 cnegexlem1 8453 cnegexlem2 8454 cnegexlem3 8455 cnegex 8456 renegcl 8539 resubcl 8542 negf1o 8660 mul02lem2 8666 ltaddneg 8703 ltaddnegr 8704 ltaddsub2 8716 leaddsub2 8718 leltadd 8726 ltaddpos 8731 ltaddpos2 8732 posdif 8734 lenegcon1 8745 lenegcon2 8746 addge01 8751 addge02 8752 leaddle0 8756 mullt0 8759 recexre 8857 msqge0 8895 mulge0 8898 aprcl 8925 recexap 8932 rerecapb 9122 ltm1 9125 prodgt02 9132 prodge02 9134 ltmul2 9135 lemul2 9136 lemul2a 9138 ltmulgt12 9144 lemulge12 9146 gt0div 9149 ge0div 9150 ltmuldiv2 9154 ltdivmul 9155 ltdivmul2 9157 ledivmul2 9159 lemuldiv2 9161 negiso 9234 cju 9240 nnge1 9265 halfpos 9474 lt2halves 9479 addltmul 9480 avgle1 9484 avgle2 9485 div4p1lem1div2 9497 nnrecl 9499 elznn0 9597 elznn 9598 nzadd 9635 zmulcl 9636 difgtsumgt 9652 elz2 9654 gtndiv 9679 zeo 9689 supminfex 9935 eqreznegel 9952 negm 9953 irradd 9984 irrmul 9985 divlt1lt 10063 divle1le 10064 xnegneg 10172 rexsub 10192 xnegid 10198 xaddcom 10200 xaddid1 10201 xnegdi 10207 xaddass 10208 xleaddadd 10226 divelunit 10341 fzonmapblen 10533 infssuzex 10600 expgt1 10946 mulexpzap 10948 leexp1a 10963 expubnd 10965 sqgt0ap 10977 lt2sq 10982 le2sq 10983 sqge0 10985 sumsqeq0 10987 bernneq 11030 bernneq2 11031 nn0ltexp2 11079 swrdccatin2 11429 swrdccat3blem 11439 crre 11550 crim 11551 reim0 11554 mulreap 11557 rere 11558 remul2 11566 redivap 11567 immul2 11573 imdivap 11574 cjre 11575 cjreim 11596 rennim 11695 sqrt0rlem 11696 resqrexlemover 11703 absreimsq 11760 absreim 11761 absnid 11766 leabs 11767 absre 11770 absresq 11771 sqabs 11775 ltabs 11780 absdiflt 11785 absdifle 11786 lenegsq 11788 abssuble0 11796 dfabsmax 11910 max0addsup 11912 negfi 11921 minclpr 11930 reefcl 12362 efgt0 12378 reeftlcl 12383 resinval 12409 recosval 12410 resin4p 12412 recos4p 12413 resincl 12414 recoscl 12415 retanclap 12416 efieq 12429 sinbnd 12446 cosbnd 12447 absefi 12463 odd2np1 12567 remetdval 15461 bl2ioo 15464 ioo2bl 15465 hoverb 15562 plyreres 15678 sincosq1sgn 15740 sincosq2sgn 15741 sincosq3sgn 15742 sincosq4sgn 15743 sinq12gt0 15744 relogoprlem 15782 logcxp 15811 rpcxpcl 15817 cxpcom 15852 rprelogbdiv 15871 gausslemma2dlem1a 15980 triap 16862 trirec0 16877 |
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