Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > ccfldextrr | Structured version Visualization version GIF version |
Description: The field of the complex numbers is an extension of the field of the real numbers. (Contributed by Thierry Arnoux, 20-Jul-2023.) |
Ref | Expression |
---|---|
ccfldextrr | ⊢ ℂfld/FldExtℝfld |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-refld 20915 | . . 3 ⊢ ℝfld = (ℂfld ↾s ℝ) | |
2 | rebase 20916 | . . . 4 ⊢ ℝ = (Base‘ℝfld) | |
3 | 2 | oveq2i 7352 | . . 3 ⊢ (ℂfld ↾s ℝ) = (ℂfld ↾s (Base‘ℝfld)) |
4 | 1, 3 | eqtri 2765 | . 2 ⊢ ℝfld = (ℂfld ↾s (Base‘ℝfld)) |
5 | resubdrg 20918 | . . . 4 ⊢ (ℝ ∈ (SubRing‘ℂfld) ∧ ℝfld ∈ DivRing) | |
6 | 5 | simpli 485 | . . 3 ⊢ ℝ ∈ (SubRing‘ℂfld) |
7 | 2, 6 | eqeltrri 2835 | . 2 ⊢ (Base‘ℝfld) ∈ (SubRing‘ℂfld) |
8 | cndrng 20732 | . . . 4 ⊢ ℂfld ∈ DivRing | |
9 | cncrng 20724 | . . . 4 ⊢ ℂfld ∈ CRing | |
10 | isfld 20103 | . . . 4 ⊢ (ℂfld ∈ Field ↔ (ℂfld ∈ DivRing ∧ ℂfld ∈ CRing)) | |
11 | 8, 9, 10 | mpbir2an 709 | . . 3 ⊢ ℂfld ∈ Field |
12 | refld 20929 | . . 3 ⊢ ℝfld ∈ Field | |
13 | brfldext 32018 | . . 3 ⊢ ((ℂfld ∈ Field ∧ ℝfld ∈ Field) → (ℂfld/FldExtℝfld ↔ (ℝfld = (ℂfld ↾s (Base‘ℝfld)) ∧ (Base‘ℝfld) ∈ (SubRing‘ℂfld)))) | |
14 | 11, 12, 13 | mp2an 690 | . 2 ⊢ (ℂfld/FldExtℝfld ↔ (ℝfld = (ℂfld ↾s (Base‘ℝfld)) ∧ (Base‘ℝfld) ∈ (SubRing‘ℂfld))) |
15 | 4, 7, 14 | mpbir2an 709 | 1 ⊢ ℂfld/FldExtℝfld |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 205 ∧ wa 397 = wceq 1541 ∈ wcel 2106 class class class wbr 5096 ‘cfv 6483 (class class class)co 7341 ℝcr 10975 Basecbs 17009 ↾s cress 17038 CRingccrg 19878 DivRingcdr 20092 Fieldcfield 20093 SubRingcsubrg 20124 ℂfldccnfld 20702 ℝfldcrefld 20914 /FldExtcfldext 32009 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2708 ax-rep 5233 ax-sep 5247 ax-nul 5254 ax-pow 5312 ax-pr 5376 ax-un 7654 ax-cnex 11032 ax-resscn 11033 ax-1cn 11034 ax-icn 11035 ax-addcl 11036 ax-addrcl 11037 ax-mulcl 11038 ax-mulrcl 11039 ax-mulcom 11040 ax-addass 11041 ax-mulass 11042 ax-distr 11043 ax-i2m1 11044 ax-1ne0 11045 ax-1rid 11046 ax-rnegex 11047 ax-rrecex 11048 ax-cnre 11049 ax-pre-lttri 11050 ax-pre-lttrn 11051 ax-pre-ltadd 11052 ax-pre-mulgt0 11053 ax-addf 11055 ax-mulf 11056 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2815 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3350 df-reu 3351 df-rab 3405 df-v 3444 df-sbc 3731 df-csb 3847 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-pss 3920 df-nul 4274 df-if 4478 df-pw 4553 df-sn 4578 df-pr 4580 df-tp 4582 df-op 4584 df-uni 4857 df-iun 4947 df-br 5097 df-opab 5159 df-mpt 5180 df-tr 5214 df-id 5522 df-eprel 5528 df-po 5536 df-so 5537 df-fr 5579 df-we 5581 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6242 df-ord 6309 df-on 6310 df-lim 6311 df-suc 6312 df-iota 6435 df-fun 6485 df-fn 6486 df-f 6487 df-f1 6488 df-fo 6489 df-f1o 6490 df-fv 6491 df-riota 7297 df-ov 7344 df-oprab 7345 df-mpo 7346 df-om 7785 df-1st 7903 df-2nd 7904 df-tpos 8116 df-frecs 8171 df-wrecs 8202 df-recs 8276 df-rdg 8315 df-1o 8371 df-er 8573 df-en 8809 df-dom 8810 df-sdom 8811 df-fin 8812 df-pnf 11116 df-mnf 11117 df-xr 11118 df-ltxr 11119 df-le 11120 df-sub 11312 df-neg 11313 df-div 11738 df-nn 12079 df-2 12141 df-3 12142 df-4 12143 df-5 12144 df-6 12145 df-7 12146 df-8 12147 df-9 12148 df-n0 12339 df-z 12425 df-dec 12543 df-uz 12688 df-fz 13345 df-struct 16945 df-sets 16962 df-slot 16980 df-ndx 16992 df-base 17010 df-ress 17039 df-plusg 17072 df-mulr 17073 df-starv 17074 df-tset 17078 df-ple 17079 df-ds 17081 df-unif 17082 df-0g 17249 df-mgm 18423 df-sgrp 18472 df-mnd 18483 df-grp 18676 df-minusg 18677 df-subg 18848 df-cmn 19483 df-mgp 19815 df-ur 19832 df-ring 19879 df-cring 19880 df-oppr 19956 df-dvdsr 19977 df-unit 19978 df-invr 20008 df-dvr 20019 df-drng 20094 df-field 20095 df-subrg 20126 df-cnfld 20703 df-refld 20915 df-fldext 32013 |
This theorem is referenced by: ccfldextdgrr 32038 |
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