Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > cjth | Structured version Visualization version GIF version |
Description: The defining property of the complex conjugate. (Contributed by Mario Carneiro, 6-Nov-2013.) |
Ref | Expression |
---|---|
cjth | ⊢ (𝐴 ∈ ℂ → ((𝐴 + (∗‘𝐴)) ∈ ℝ ∧ (i · (𝐴 − (∗‘𝐴))) ∈ ℝ)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cju 11899 | . . . 4 ⊢ (𝐴 ∈ ℂ → ∃!𝑥 ∈ ℂ ((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ)) | |
2 | riotasbc 7231 | . . . 4 ⊢ (∃!𝑥 ∈ ℂ ((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ) → [(℩𝑥 ∈ ℂ ((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ)) / 𝑥]((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ)) | |
3 | 1, 2 | syl 17 | . . 3 ⊢ (𝐴 ∈ ℂ → [(℩𝑥 ∈ ℂ ((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ)) / 𝑥]((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ)) |
4 | cjval 14741 | . . . 4 ⊢ (𝐴 ∈ ℂ → (∗‘𝐴) = (℩𝑥 ∈ ℂ ((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ))) | |
5 | 4 | sbceq1d 3716 | . . 3 ⊢ (𝐴 ∈ ℂ → ([(∗‘𝐴) / 𝑥]((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ) ↔ [(℩𝑥 ∈ ℂ ((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ)) / 𝑥]((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ))) |
6 | 3, 5 | mpbird 256 | . 2 ⊢ (𝐴 ∈ ℂ → [(∗‘𝐴) / 𝑥]((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ)) |
7 | fvex 6769 | . . 3 ⊢ (∗‘𝐴) ∈ V | |
8 | oveq2 7263 | . . . . 5 ⊢ (𝑥 = (∗‘𝐴) → (𝐴 + 𝑥) = (𝐴 + (∗‘𝐴))) | |
9 | 8 | eleq1d 2823 | . . . 4 ⊢ (𝑥 = (∗‘𝐴) → ((𝐴 + 𝑥) ∈ ℝ ↔ (𝐴 + (∗‘𝐴)) ∈ ℝ)) |
10 | oveq2 7263 | . . . . . 6 ⊢ (𝑥 = (∗‘𝐴) → (𝐴 − 𝑥) = (𝐴 − (∗‘𝐴))) | |
11 | 10 | oveq2d 7271 | . . . . 5 ⊢ (𝑥 = (∗‘𝐴) → (i · (𝐴 − 𝑥)) = (i · (𝐴 − (∗‘𝐴)))) |
12 | 11 | eleq1d 2823 | . . . 4 ⊢ (𝑥 = (∗‘𝐴) → ((i · (𝐴 − 𝑥)) ∈ ℝ ↔ (i · (𝐴 − (∗‘𝐴))) ∈ ℝ)) |
13 | 9, 12 | anbi12d 630 | . . 3 ⊢ (𝑥 = (∗‘𝐴) → (((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ) ↔ ((𝐴 + (∗‘𝐴)) ∈ ℝ ∧ (i · (𝐴 − (∗‘𝐴))) ∈ ℝ))) |
14 | 7, 13 | sbcie 3754 | . 2 ⊢ ([(∗‘𝐴) / 𝑥]((𝐴 + 𝑥) ∈ ℝ ∧ (i · (𝐴 − 𝑥)) ∈ ℝ) ↔ ((𝐴 + (∗‘𝐴)) ∈ ℝ ∧ (i · (𝐴 − (∗‘𝐴))) ∈ ℝ)) |
15 | 6, 14 | sylib 217 | 1 ⊢ (𝐴 ∈ ℂ → ((𝐴 + (∗‘𝐴)) ∈ ℝ ∧ (i · (𝐴 − (∗‘𝐴))) ∈ ℝ)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2108 ∃!wreu 3065 [wsbc 3711 ‘cfv 6418 ℩crio 7211 (class class class)co 7255 ℂcc 10800 ℝcr 10801 ici 10804 + caddc 10805 · cmul 10807 − cmin 11135 ∗ccj 14735 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-po 5494 df-so 5495 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-div 11563 df-cj 14738 |
This theorem is referenced by: recl 14749 crre 14753 |
Copyright terms: Public domain | W3C validator |