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Mirrors > Home > MPE Home > Th. List > recld | Structured version Visualization version GIF version |
Description: The real part of a complex number is real (closure law). (Contributed by Mario Carneiro, 29-May-2016.) |
Ref | Expression |
---|---|
recld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
Ref | Expression |
---|---|
recld | ⊢ (𝜑 → (ℜ‘𝐴) ∈ ℝ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | recld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
2 | recl 14461 | . 2 ⊢ (𝐴 ∈ ℂ → (ℜ‘𝐴) ∈ ℝ) | |
3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → (ℜ‘𝐴) ∈ ℝ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2111 ‘cfv 6324 ℂcc 10524 ℝcr 10525 ℜcre 14448 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 ax-resscn 10583 ax-1cn 10584 ax-icn 10585 ax-addcl 10586 ax-addrcl 10587 ax-mulcl 10588 ax-mulrcl 10589 ax-mulcom 10590 ax-addass 10591 ax-mulass 10592 ax-distr 10593 ax-i2m1 10594 ax-1ne0 10595 ax-1rid 10596 ax-rnegex 10597 ax-rrecex 10598 ax-cnre 10599 ax-pre-lttri 10600 ax-pre-lttrn 10601 ax-pre-ltadd 10602 ax-pre-mulgt0 10603 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-nel 3092 df-ral 3111 df-rex 3112 df-reu 3113 df-rmo 3114 df-rab 3115 df-v 3443 df-sbc 3721 df-csb 3829 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-br 5031 df-opab 5093 df-mpt 5111 df-id 5425 df-po 5438 df-so 5439 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-f1 6329 df-fo 6330 df-f1o 6331 df-fv 6332 df-riota 7093 df-ov 7138 df-oprab 7139 df-mpo 7140 df-er 8272 df-en 8493 df-dom 8494 df-sdom 8495 df-pnf 10666 df-mnf 10667 df-xr 10668 df-ltxr 10669 df-le 10670 df-sub 10861 df-neg 10862 df-div 11287 df-2 11688 df-cj 14450 df-re 14451 |
This theorem is referenced by: abstri 14682 sqreulem 14711 eqsqrt2d 14720 rlimrege0 14928 recoscl 15486 cos01bnd 15531 cnsubrg 20151 mbfeqa 24247 mbfss 24250 mbfmulc2re 24252 mbfadd 24265 mbfmulc2 24267 mbflim 24272 mbfmul 24330 iblcn 24402 itgcnval 24403 itgre 24404 itgim 24405 iblneg 24406 itgneg 24407 iblss 24408 itgeqa 24417 iblconst 24421 ibladd 24424 itgadd 24428 iblabs 24432 iblabsr 24433 iblmulc2 24434 itgmulc2 24437 itgabs 24438 itgsplit 24439 bddiblnc 24445 dvlip 24596 tanregt0 25131 efif1olem4 25137 eff1olem 25140 lognegb 25181 relog 25188 efiarg 25198 cosarg0d 25200 argregt0 25201 argrege0 25202 abslogle 25209 logcnlem4 25236 cxpsqrtlem 25293 cxpcn3lem 25336 abscxpbnd 25342 cosangneg2d 25393 angrtmuld 25394 lawcoslem1 25401 isosctrlem1 25404 asinlem3a 25456 asinlem3 25457 asinneg 25472 asinsinlem 25477 asinsin 25478 acosbnd 25486 atanlogaddlem 25499 atanlogadd 25500 atanlogsublem 25501 atanlogsub 25502 atantan 25509 o1cxp 25560 cxploglim2 25564 zetacvg 25600 lgamgulmlem2 25615 sqsscirc2 31262 ibladdnc 35114 itgaddnc 35117 iblabsnc 35121 iblmulc2nc 35122 itgmulc2nc 35125 itgabsnc 35126 ftc1anclem2 35131 ftc1anclem5 35134 ftc1anclem6 35135 ftc1anclem8 35137 cntotbnd 35234 sqrtcvallem1 40331 sqrtcvallem4 40339 isosctrlem1ALT 41640 iblsplit 42608 |
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