Mathbox for Saveliy Skresanov |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > sigaraf | Structured version Visualization version GIF version |
Description: Signed area is additive by the first argument. (Contributed by Saveliy Skresanov, 19-Sep-2017.) |
Ref | Expression |
---|---|
sigar | ⊢ 𝐺 = (𝑥 ∈ ℂ, 𝑦 ∈ ℂ ↦ (ℑ‘((∗‘𝑥) · 𝑦))) |
Ref | Expression |
---|---|
sigaraf | ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐴 + 𝐶)𝐺𝐵) = ((𝐴𝐺𝐵) + (𝐶𝐺𝐵))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cjadd 14669 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (∗‘(𝐴 + 𝐶)) = ((∗‘𝐴) + (∗‘𝐶))) | |
2 | 1 | oveq1d 7206 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((∗‘(𝐴 + 𝐶)) · 𝐵) = (((∗‘𝐴) + (∗‘𝐶)) · 𝐵)) |
3 | 2 | 3adant2 1133 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((∗‘(𝐴 + 𝐶)) · 𝐵) = (((∗‘𝐴) + (∗‘𝐶)) · 𝐵)) |
4 | simp1 1138 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → 𝐴 ∈ ℂ) | |
5 | 4 | cjcld 14724 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (∗‘𝐴) ∈ ℂ) |
6 | simp3 1140 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → 𝐶 ∈ ℂ) | |
7 | 6 | cjcld 14724 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (∗‘𝐶) ∈ ℂ) |
8 | simp2 1139 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → 𝐵 ∈ ℂ) | |
9 | 5, 7, 8 | adddird 10823 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (((∗‘𝐴) + (∗‘𝐶)) · 𝐵) = (((∗‘𝐴) · 𝐵) + ((∗‘𝐶) · 𝐵))) |
10 | 3, 9 | eqtrd 2771 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((∗‘(𝐴 + 𝐶)) · 𝐵) = (((∗‘𝐴) · 𝐵) + ((∗‘𝐶) · 𝐵))) |
11 | 10 | fveq2d 6699 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (ℑ‘((∗‘(𝐴 + 𝐶)) · 𝐵)) = (ℑ‘(((∗‘𝐴) · 𝐵) + ((∗‘𝐶) · 𝐵)))) |
12 | 5, 8 | mulcld 10818 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((∗‘𝐴) · 𝐵) ∈ ℂ) |
13 | 7, 8 | mulcld 10818 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((∗‘𝐶) · 𝐵) ∈ ℂ) |
14 | 12, 13 | imaddd 14743 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (ℑ‘(((∗‘𝐴) · 𝐵) + ((∗‘𝐶) · 𝐵))) = ((ℑ‘((∗‘𝐴) · 𝐵)) + (ℑ‘((∗‘𝐶) · 𝐵)))) |
15 | 11, 14 | eqtrd 2771 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (ℑ‘((∗‘(𝐴 + 𝐶)) · 𝐵)) = ((ℑ‘((∗‘𝐴) · 𝐵)) + (ℑ‘((∗‘𝐶) · 𝐵)))) |
16 | 4, 6 | addcld 10817 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐴 + 𝐶) ∈ ℂ) |
17 | sigar | . . . 4 ⊢ 𝐺 = (𝑥 ∈ ℂ, 𝑦 ∈ ℂ ↦ (ℑ‘((∗‘𝑥) · 𝑦))) | |
18 | 17 | sigarval 43981 | . . 3 ⊢ (((𝐴 + 𝐶) ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 + 𝐶)𝐺𝐵) = (ℑ‘((∗‘(𝐴 + 𝐶)) · 𝐵))) |
19 | 16, 8, 18 | syl2anc 587 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐴 + 𝐶)𝐺𝐵) = (ℑ‘((∗‘(𝐴 + 𝐶)) · 𝐵))) |
20 | 17 | sigarval 43981 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴𝐺𝐵) = (ℑ‘((∗‘𝐴) · 𝐵))) |
21 | 20 | 3adant3 1134 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐴𝐺𝐵) = (ℑ‘((∗‘𝐴) · 𝐵))) |
22 | 3simpc 1152 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ)) | |
23 | 22 | ancomd 465 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐶 ∈ ℂ ∧ 𝐵 ∈ ℂ)) |
24 | 17 | sigarval 43981 | . . . 4 ⊢ ((𝐶 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐶𝐺𝐵) = (ℑ‘((∗‘𝐶) · 𝐵))) |
25 | 23, 24 | syl 17 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐶𝐺𝐵) = (ℑ‘((∗‘𝐶) · 𝐵))) |
26 | 21, 25 | oveq12d 7209 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐴𝐺𝐵) + (𝐶𝐺𝐵)) = ((ℑ‘((∗‘𝐴) · 𝐵)) + (ℑ‘((∗‘𝐶) · 𝐵)))) |
27 | 15, 19, 26 | 3eqtr4d 2781 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐴 + 𝐶)𝐺𝐵) = ((𝐴𝐺𝐵) + (𝐶𝐺𝐵))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1089 = wceq 1543 ∈ wcel 2112 ‘cfv 6358 (class class class)co 7191 ∈ cmpo 7193 ℂcc 10692 + caddc 10697 · cmul 10699 ∗ccj 14624 ℑcim 14626 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 ax-resscn 10751 ax-1cn 10752 ax-icn 10753 ax-addcl 10754 ax-addrcl 10755 ax-mulcl 10756 ax-mulrcl 10757 ax-mulcom 10758 ax-addass 10759 ax-mulass 10760 ax-distr 10761 ax-i2m1 10762 ax-1ne0 10763 ax-1rid 10764 ax-rnegex 10765 ax-rrecex 10766 ax-cnre 10767 ax-pre-lttri 10768 ax-pre-lttrn 10769 ax-pre-ltadd 10770 ax-pre-mulgt0 10771 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-nel 3037 df-ral 3056 df-rex 3057 df-reu 3058 df-rmo 3059 df-rab 3060 df-v 3400 df-sbc 3684 df-csb 3799 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-op 4534 df-uni 4806 df-br 5040 df-opab 5102 df-mpt 5121 df-id 5440 df-po 5453 df-so 5454 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 df-iota 6316 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-riota 7148 df-ov 7194 df-oprab 7195 df-mpo 7196 df-er 8369 df-en 8605 df-dom 8606 df-sdom 8607 df-pnf 10834 df-mnf 10835 df-xr 10836 df-ltxr 10837 df-le 10838 df-sub 11029 df-neg 11030 df-div 11455 df-2 11858 df-cj 14627 df-re 14628 df-im 14629 |
This theorem is referenced by: sigaras 43986 sharhght 43996 |
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