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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 11242 | . . 3 ⊢ (𝑥 ∈ ℝ → 𝑥 ∈ ℂ) | |
2 | readdcl 11235 | . . 3 ⊢ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (𝑥 + 𝑦) ∈ ℝ) | |
3 | renegcl 11569 | . . 3 ⊢ (𝑥 ∈ ℝ → -𝑥 ∈ ℝ) | |
4 | 1re 11258 | . . 3 ⊢ 1 ∈ ℝ | |
5 | remulcl 11237 | . . 3 ⊢ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (𝑥 · 𝑦) ∈ ℝ) | |
6 | rereccl 11982 | . . 3 ⊢ ((𝑥 ∈ ℝ ∧ 𝑥 ≠ 0) → (1 / 𝑥) ∈ ℝ) | |
7 | 1, 2, 3, 4, 5, 6 | cnsubdrglem 21453 | . 2 ⊢ (ℝ ∈ (SubRing‘ℂfld) ∧ (ℂfld ↾s ℝ) ∈ DivRing) |
8 | df-refld 21640 | . . . 4 ⊢ ℝfld = (ℂfld ↾s ℝ) | |
9 | 8 | eleq1i 2829 | . . 3 ⊢ (ℝfld ∈ DivRing ↔ (ℂfld ↾s ℝ) ∈ DivRing) |
10 | 9 | anbi2i 623 | . 2 ⊢ ((ℝ ∈ (SubRing‘ℂfld) ∧ ℝfld ∈ DivRing) ↔ (ℝ ∈ (SubRing‘ℂfld) ∧ (ℂfld ↾s ℝ) ∈ DivRing)) |
11 | 7, 10 | mpbir 231 | 1 ⊢ (ℝ ∈ (SubRing‘ℂfld) ∧ ℝfld ∈ DivRing) |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 395 ∈ wcel 2105 ‘cfv 6562 (class class class)co 7430 ℝcr 11151 ↾s cress 17273 SubRingcsubrg 20585 DivRingcdr 20745 ℂfldccnfld 21381 ℝfldcrefld 21639 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1791 ax-4 1805 ax-5 1907 ax-6 1964 ax-7 2004 ax-8 2107 ax-9 2115 ax-10 2138 ax-11 2154 ax-12 2174 ax-ext 2705 ax-rep 5284 ax-sep 5301 ax-nul 5311 ax-pow 5370 ax-pr 5437 ax-un 7753 ax-cnex 11208 ax-resscn 11209 ax-1cn 11210 ax-icn 11211 ax-addcl 11212 ax-addrcl 11213 ax-mulcl 11214 ax-mulrcl 11215 ax-mulcom 11216 ax-addass 11217 ax-mulass 11218 ax-distr 11219 ax-i2m1 11220 ax-1ne0 11221 ax-1rid 11222 ax-rnegex 11223 ax-rrecex 11224 ax-cnre 11225 ax-pre-lttri 11226 ax-pre-lttrn 11227 ax-pre-ltadd 11228 ax-pre-mulgt0 11229 ax-addf 11231 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1539 df-fal 1549 df-ex 1776 df-nf 1780 df-sb 2062 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2726 df-clel 2813 df-nfc 2889 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-rmo 3377 df-reu 3378 df-rab 3433 df-v 3479 df-sbc 3791 df-csb 3908 df-dif 3965 df-un 3967 df-in 3969 df-ss 3979 df-pss 3982 df-nul 4339 df-if 4531 df-pw 4606 df-sn 4631 df-pr 4633 df-tp 4635 df-op 4637 df-uni 4912 df-iun 4997 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5582 df-eprel 5588 df-po 5596 df-so 5597 df-fr 5640 df-we 5642 df-xp 5694 df-rel 5695 df-cnv 5696 df-co 5697 df-dm 5698 df-rn 5699 df-res 5700 df-ima 5701 df-pred 6322 df-ord 6388 df-on 6389 df-lim 6390 df-suc 6391 df-iota 6515 df-fun 6564 df-fn 6565 df-f 6566 df-f1 6567 df-fo 6568 df-f1o 6569 df-fv 6570 df-riota 7387 df-ov 7433 df-oprab 7434 df-mpo 7435 df-om 7887 df-1st 8012 df-2nd 8013 df-tpos 8249 df-frecs 8304 df-wrecs 8335 df-recs 8409 df-rdg 8448 df-1o 8504 df-er 8743 df-en 8984 df-dom 8985 df-sdom 8986 df-fin 8987 df-pnf 11294 df-mnf 11295 df-xr 11296 df-ltxr 11297 df-le 11298 df-sub 11491 df-neg 11492 df-div 11918 df-nn 12264 df-2 12326 df-3 12327 df-4 12328 df-5 12329 df-6 12330 df-7 12331 df-8 12332 df-9 12333 df-n0 12524 df-z 12611 df-dec 12731 df-uz 12876 df-fz 13544 df-struct 17180 df-sets 17197 df-slot 17215 df-ndx 17227 df-base 17245 df-ress 17274 df-plusg 17310 df-mulr 17311 df-starv 17312 df-tset 17316 df-ple 17317 df-ds 17319 df-unif 17320 df-0g 17487 df-mgm 18665 df-sgrp 18744 df-mnd 18760 df-grp 18966 df-minusg 18967 df-subg 19153 df-cmn 19814 df-abl 19815 df-mgp 20152 df-rng 20170 df-ur 20199 df-ring 20252 df-cring 20253 df-oppr 20350 df-dvdsr 20373 df-unit 20374 df-invr 20404 df-dvr 20417 df-subrng 20562 df-subrg 20586 df-drng 20747 df-cnfld 21382 df-refld 21640 |
This theorem is referenced by: resubgval 21644 re1r 21648 redvr 21652 refld 21654 rzgrp 21658 recvs 25192 recvsOLD 25193 taylthlem2 26430 taylthlem2OLD 26431 reefgim 26508 circgrp 26608 circsubm 26609 jensenlem2 27045 amgmlem 27047 nn0archi 33354 rrxdim 33641 ccfldextrr 33675 rezh 33931 rerrext 33971 cnrrext 33972 zrhre 33981 qqhre 33982 bj-rveccmod 37284 amgmwlem 49032 |
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