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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 11197 | . . 3 ⊢ (𝑥 ∈ ℝ → 𝑥 ∈ ℂ) | |
2 | readdcl 11190 | . . 3 ⊢ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (𝑥 + 𝑦) ∈ ℝ) | |
3 | renegcl 11522 | . . 3 ⊢ (𝑥 ∈ ℝ → -𝑥 ∈ ℝ) | |
4 | 1re 11213 | . . 3 ⊢ 1 ∈ ℝ | |
5 | remulcl 11192 | . . 3 ⊢ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (𝑥 · 𝑦) ∈ ℝ) | |
6 | rereccl 11931 | . . 3 ⊢ ((𝑥 ∈ ℝ ∧ 𝑥 ≠ 0) → (1 / 𝑥) ∈ ℝ) | |
7 | 1, 2, 3, 4, 5, 6 | cnsubdrglem 21301 | . 2 ⊢ (ℝ ∈ (SubRing‘ℂfld) ∧ (ℂfld ↾s ℝ) ∈ DivRing) |
8 | df-refld 21487 | . . . 4 ⊢ ℝfld = (ℂfld ↾s ℝ) | |
9 | 8 | eleq1i 2816 | . . 3 ⊢ (ℝfld ∈ DivRing ↔ (ℂfld ↾s ℝ) ∈ DivRing) |
10 | 9 | anbi2i 622 | . 2 ⊢ ((ℝ ∈ (SubRing‘ℂfld) ∧ ℝfld ∈ DivRing) ↔ (ℝ ∈ (SubRing‘ℂfld) ∧ (ℂfld ↾s ℝ) ∈ DivRing)) |
11 | 7, 10 | mpbir 230 | 1 ⊢ (ℝ ∈ (SubRing‘ℂfld) ∧ ℝfld ∈ DivRing) |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 395 ∈ wcel 2098 ‘cfv 6534 (class class class)co 7402 ℝcr 11106 ↾s cress 17178 SubRingcsubrg 20465 DivRingcdr 20583 ℂfldccnfld 21234 ℝfldcrefld 21486 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2163 ax-ext 2695 ax-rep 5276 ax-sep 5290 ax-nul 5297 ax-pow 5354 ax-pr 5418 ax-un 7719 ax-cnex 11163 ax-resscn 11164 ax-1cn 11165 ax-icn 11166 ax-addcl 11167 ax-addrcl 11168 ax-mulcl 11169 ax-mulrcl 11170 ax-mulcom 11171 ax-addass 11172 ax-mulass 11173 ax-distr 11174 ax-i2m1 11175 ax-1ne0 11176 ax-1rid 11177 ax-rnegex 11178 ax-rrecex 11179 ax-cnre 11180 ax-pre-lttri 11181 ax-pre-lttrn 11182 ax-pre-ltadd 11183 ax-pre-mulgt0 11184 ax-addf 11186 ax-mulf 11187 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 845 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2526 df-eu 2555 df-clab 2702 df-cleq 2716 df-clel 2802 df-nfc 2877 df-ne 2933 df-nel 3039 df-ral 3054 df-rex 3063 df-rmo 3368 df-reu 3369 df-rab 3425 df-v 3468 df-sbc 3771 df-csb 3887 df-dif 3944 df-un 3946 df-in 3948 df-ss 3958 df-pss 3960 df-nul 4316 df-if 4522 df-pw 4597 df-sn 4622 df-pr 4624 df-tp 4626 df-op 4628 df-uni 4901 df-iun 4990 df-br 5140 df-opab 5202 df-mpt 5223 df-tr 5257 df-id 5565 df-eprel 5571 df-po 5579 df-so 5580 df-fr 5622 df-we 5624 df-xp 5673 df-rel 5674 df-cnv 5675 df-co 5676 df-dm 5677 df-rn 5678 df-res 5679 df-ima 5680 df-pred 6291 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6486 df-fun 6536 df-fn 6537 df-f 6538 df-f1 6539 df-fo 6540 df-f1o 6541 df-fv 6542 df-riota 7358 df-ov 7405 df-oprab 7406 df-mpo 7407 df-om 7850 df-1st 7969 df-2nd 7970 df-tpos 8207 df-frecs 8262 df-wrecs 8293 df-recs 8367 df-rdg 8406 df-1o 8462 df-er 8700 df-en 8937 df-dom 8938 df-sdom 8939 df-fin 8940 df-pnf 11249 df-mnf 11250 df-xr 11251 df-ltxr 11252 df-le 11253 df-sub 11445 df-neg 11446 df-div 11871 df-nn 12212 df-2 12274 df-3 12275 df-4 12276 df-5 12277 df-6 12278 df-7 12279 df-8 12280 df-9 12281 df-n0 12472 df-z 12558 df-dec 12677 df-uz 12822 df-fz 13486 df-struct 17085 df-sets 17102 df-slot 17120 df-ndx 17132 df-base 17150 df-ress 17179 df-plusg 17215 df-mulr 17216 df-starv 17217 df-tset 17221 df-ple 17222 df-ds 17224 df-unif 17225 df-0g 17392 df-mgm 18569 df-sgrp 18648 df-mnd 18664 df-grp 18862 df-minusg 18863 df-subg 19046 df-cmn 19698 df-abl 19699 df-mgp 20036 df-rng 20054 df-ur 20083 df-ring 20136 df-cring 20137 df-oppr 20232 df-dvdsr 20255 df-unit 20256 df-invr 20286 df-dvr 20299 df-subrng 20442 df-subrg 20467 df-drng 20585 df-cnfld 21235 df-refld 21487 |
This theorem is referenced by: resubgval 21491 re1r 21495 redvr 21499 refld 21501 rzgrp 21505 recvs 25017 recvsOLD 25018 taylthlem2 26250 reefgim 26327 circgrp 26426 circsubm 26427 jensenlem2 26860 amgmlem 26862 nn0archi 32954 rrxdim 33206 ccfldextrr 33234 rezh 33470 rerrext 33508 cnrrext 33509 zrhre 33518 qqhre 33519 gg-taylthlem2 35683 bj-rveccmod 36683 amgmwlem 48096 |
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