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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 7705 | . 2 ⊢ ℝ ⊆ ℂ | |
2 | 1 | sseli 3088 | 1 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℂ) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∈ 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: mulid1 7756 recnd 7787 pnfnre 7800 mnfnre 7801 cnegexlem1 7930 cnegexlem2 7931 cnegexlem3 7932 cnegex 7933 renegcl 8016 resubcl 8019 negf1o 8137 mul02lem2 8143 ltaddneg 8179 ltaddnegr 8180 ltaddsub2 8192 leaddsub2 8194 leltadd 8202 ltaddpos 8207 ltaddpos2 8208 posdif 8210 lenegcon1 8221 lenegcon2 8222 addge01 8227 addge02 8228 leaddle0 8232 mullt0 8235 recexre 8333 msqge0 8371 mulge0 8374 aprcl 8401 recexap 8407 ltm1 8597 prodgt02 8604 prodge02 8606 ltmul2 8607 lemul2 8608 lemul2a 8610 ltmulgt12 8616 lemulge12 8618 gt0div 8621 ge0div 8622 ltmuldiv2 8626 ltdivmul 8627 ltdivmul2 8629 ledivmul2 8631 lemuldiv2 8633 negiso 8706 cju 8712 nnge1 8736 halfpos 8944 lt2halves 8948 addltmul 8949 avgle1 8953 avgle2 8954 div4p1lem1div2 8966 nnrecl 8968 elznn0 9062 elznn 9063 nzadd 9099 zmulcl 9100 elz2 9115 gtndiv 9139 zeo 9149 supminfex 9385 eqreznegel 9399 negm 9400 irradd 9431 irrmul 9432 divlt1lt 9504 divle1le 9505 xnegneg 9609 rexsub 9629 xnegid 9635 xaddcom 9637 xaddid1 9638 xnegdi 9644 xaddass 9645 xleaddadd 9663 divelunit 9778 fzonmapblen 9957 expgt1 10324 mulexpzap 10326 leexp1a 10341 expubnd 10343 sqgt0ap 10354 lt2sq 10359 le2sq 10360 sqge0 10362 sumsqeq0 10364 bernneq 10405 bernneq2 10406 crre 10622 crim 10623 reim0 10626 mulreap 10629 rere 10630 remul2 10638 redivap 10639 immul2 10645 imdivap 10646 cjre 10647 cjreim 10668 rennim 10767 sqrt0rlem 10768 resqrexlemover 10775 absreimsq 10832 absreim 10833 absnid 10838 leabs 10839 absre 10842 absresq 10843 sqabs 10847 ltabs 10852 absdiflt 10857 absdifle 10858 lenegsq 10860 abssuble0 10868 dfabsmax 10982 max0addsup 10984 negfi 10992 minclpr 11001 reefcl 11363 efgt0 11379 reeftlcl 11384 resinval 11411 recosval 11412 resin4p 11414 recos4p 11415 resincl 11416 recoscl 11417 retanclap 11418 efieq 11431 sinbnd 11448 cosbnd 11449 absefi 11464 odd2np1 11559 infssuzex 11631 remetdval 12697 bl2ioo 12700 ioo2bl 12701 sincosq1sgn 12896 sincosq2sgn 12897 sincosq3sgn 12898 sincosq4sgn 12899 sinq12gt0 12900 triap 13213 |
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