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Mirrors > Home > MPE Home > Th. List > resubdrg | Structured version Visualization version GIF version |
Description: The real numbers form a division subring of the complex numbers. (Contributed by Mario Carneiro, 4-Dec-2014.) (Revised by Thierry Arnoux, 30-Jun-2019.) |
Ref | Expression |
---|---|
resubdrg | ⊢ (ℝ ∈ (SubRing‘ℂfld) ∧ ℝfld ∈ DivRing) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | recn 10341 | . . 3 ⊢ (𝑥 ∈ ℝ → 𝑥 ∈ ℂ) | |
2 | readdcl 10334 | . . 3 ⊢ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (𝑥 + 𝑦) ∈ ℝ) | |
3 | renegcl 10664 | . . 3 ⊢ (𝑥 ∈ ℝ → -𝑥 ∈ ℝ) | |
4 | 1re 10355 | . . 3 ⊢ 1 ∈ ℝ | |
5 | remulcl 10336 | . . 3 ⊢ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (𝑥 · 𝑦) ∈ ℝ) | |
6 | rereccl 11068 | . . 3 ⊢ ((𝑥 ∈ ℝ ∧ 𝑥 ≠ 0) → (1 / 𝑥) ∈ ℝ) | |
7 | 1, 2, 3, 4, 5, 6 | cnsubdrglem 20156 | . 2 ⊢ (ℝ ∈ (SubRing‘ℂfld) ∧ (ℂfld ↾s ℝ) ∈ DivRing) |
8 | df-refld 20311 | . . . 4 ⊢ ℝfld = (ℂfld ↾s ℝ) | |
9 | 8 | eleq1i 2896 | . . 3 ⊢ (ℝfld ∈ DivRing ↔ (ℂfld ↾s ℝ) ∈ DivRing) |
10 | 9 | anbi2i 618 | . 2 ⊢ ((ℝ ∈ (SubRing‘ℂfld) ∧ ℝfld ∈ DivRing) ↔ (ℝ ∈ (SubRing‘ℂfld) ∧ (ℂfld ↾s ℝ) ∈ DivRing)) |
11 | 7, 10 | mpbir 223 | 1 ⊢ (ℝ ∈ (SubRing‘ℂfld) ∧ ℝfld ∈ DivRing) |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 386 ∈ wcel 2166 ‘cfv 6122 (class class class)co 6904 ℝcr 10250 ↾s cress 16222 DivRingcdr 19102 SubRingcsubrg 19131 ℂfldccnfld 20105 ℝfldcrefld 20310 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1896 ax-4 1910 ax-5 2011 ax-6 2077 ax-7 2114 ax-8 2168 ax-9 2175 ax-10 2194 ax-11 2209 ax-12 2222 ax-13 2390 ax-ext 2802 ax-rep 4993 ax-sep 5004 ax-nul 5012 ax-pow 5064 ax-pr 5126 ax-un 7208 ax-cnex 10307 ax-resscn 10308 ax-1cn 10309 ax-icn 10310 ax-addcl 10311 ax-addrcl 10312 ax-mulcl 10313 ax-mulrcl 10314 ax-mulcom 10315 ax-addass 10316 ax-mulass 10317 ax-distr 10318 ax-i2m1 10319 ax-1ne0 10320 ax-1rid 10321 ax-rnegex 10322 ax-rrecex 10323 ax-cnre 10324 ax-pre-lttri 10325 ax-pre-lttrn 10326 ax-pre-ltadd 10327 ax-pre-mulgt0 10328 ax-addf 10330 ax-mulf 10331 |
This theorem depends on definitions: df-bi 199 df-an 387 df-or 881 df-3or 1114 df-3an 1115 df-tru 1662 df-ex 1881 df-nf 1885 df-sb 2070 df-mo 2604 df-eu 2639 df-clab 2811 df-cleq 2817 df-clel 2820 df-nfc 2957 df-ne 2999 df-nel 3102 df-ral 3121 df-rex 3122 df-reu 3123 df-rmo 3124 df-rab 3125 df-v 3415 df-sbc 3662 df-csb 3757 df-dif 3800 df-un 3802 df-in 3804 df-ss 3811 df-pss 3813 df-nul 4144 df-if 4306 df-pw 4379 df-sn 4397 df-pr 4399 df-tp 4401 df-op 4403 df-uni 4658 df-int 4697 df-iun 4741 df-br 4873 df-opab 4935 df-mpt 4952 df-tr 4975 df-id 5249 df-eprel 5254 df-po 5262 df-so 5263 df-fr 5300 df-we 5302 df-xp 5347 df-rel 5348 df-cnv 5349 df-co 5350 df-dm 5351 df-rn 5352 df-res 5353 df-ima 5354 df-pred 5919 df-ord 5965 df-on 5966 df-lim 5967 df-suc 5968 df-iota 6085 df-fun 6124 df-fn 6125 df-f 6126 df-f1 6127 df-fo 6128 df-f1o 6129 df-fv 6130 df-riota 6865 df-ov 6907 df-oprab 6908 df-mpt2 6909 df-om 7326 df-1st 7427 df-2nd 7428 df-tpos 7616 df-wrecs 7671 df-recs 7733 df-rdg 7771 df-1o 7825 df-oadd 7829 df-er 8008 df-en 8222 df-dom 8223 df-sdom 8224 df-fin 8225 df-pnf 10392 df-mnf 10393 df-xr 10394 df-ltxr 10395 df-le 10396 df-sub 10586 df-neg 10587 df-div 11009 df-nn 11350 df-2 11413 df-3 11414 df-4 11415 df-5 11416 df-6 11417 df-7 11418 df-8 11419 df-9 11420 df-n0 11618 df-z 11704 df-dec 11821 df-uz 11968 df-fz 12619 df-struct 16223 df-ndx 16224 df-slot 16225 df-base 16227 df-sets 16228 df-ress 16229 df-plusg 16317 df-mulr 16318 df-starv 16319 df-tset 16323 df-ple 16324 df-ds 16326 df-unif 16327 df-0g 16454 df-mgm 17594 df-sgrp 17636 df-mnd 17647 df-grp 17778 df-minusg 17779 df-subg 17941 df-cmn 18547 df-mgp 18843 df-ur 18855 df-ring 18902 df-cring 18903 df-oppr 18976 df-dvdsr 18994 df-unit 18995 df-invr 19025 df-dvr 19036 df-drng 19104 df-subrg 19133 df-cnfld 20106 df-refld 20311 |
This theorem is referenced by: resubgval 20315 re1r 20319 redvr 20323 refld 20325 rzgrp 20329 recvs 23314 taylthlem2 24526 reefgim 24602 circgrp 24697 circsubm 24698 jensenlem2 25126 amgmlem 25128 nn0archi 30387 rezh 30559 rerrext 30597 cnrrext 30598 zrhre 30607 qqhre 30608 amgmwlem 43443 |
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