ang180lem5 - Metamath Proof Explorer

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Theorem ang180lem5 26554

Description: Lemma for ang180 26555: Reduce the statement to two variables. (Contributed by Mario Carneiro, 23-Sep-2014.)

**Hypothesis**
Ref	Expression
ang.1	⊢ 𝐹 = (𝑥 ∈ (ℂ ∖ {0}), 𝑦 ∈ (ℂ ∖ {0}) ↦ (ℑ‘(log‘(𝑦 / 𝑥))))

**Assertion**
Ref	Expression
ang180lem5	⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((((𝐴 − 𝐵)𝐹𝐴) + (𝐵𝐹(𝐵 − 𝐴))) + (𝐴𝐹𝐵)) ∈ {-π, π})

Distinct variable groups: 𝑥,𝑦,𝐴 𝑥,𝐵,𝑦 Allowed substitution hints: 𝐹(𝑥,𝑦)

**Proof of Theorem ang180lem5**
Step	Hyp	Ref	Expression
1		simp1l 1195	. . . . . . . 8 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 𝐴 ∈ ℂ)
2		1cnd 11213	. . . . . . . 8 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 1 ∈ ℂ)
3		simp2l 1197	. . . . . . . . 9 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 𝐵 ∈ ℂ)
4		simp1r 1196	. . . . . . . . 9 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 𝐴 ≠ 0)
5	3, 1, 4	divcld 11994	. . . . . . . 8 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐵 / 𝐴) ∈ ℂ)
6	1, 2, 5	subdid 11674	. . . . . . 7 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴 · (1 − (𝐵 / 𝐴))) = ((𝐴 · 1) − (𝐴 · (𝐵 / 𝐴))))
7	1	mulridd 11235	. . . . . . . 8 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴 · 1) = 𝐴)
8	3, 1, 4	divcan2d 11996	. . . . . . . 8 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴 · (𝐵 / 𝐴)) = 𝐵)
9	7, 8	oveq12d 7429	. . . . . . 7 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · 1) − (𝐴 · (𝐵 / 𝐴))) = (𝐴 − 𝐵))
10	6, 9	eqtrd 2770	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴 · (1 − (𝐵 / 𝐴))) = (𝐴 − 𝐵))
11	10, 7	oveq12d 7429	. . . . 5 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · (1 − (𝐵 / 𝐴)))𝐹(𝐴 · 1)) = ((𝐴 − 𝐵)𝐹𝐴))
12	2, 5	subcld 11575	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (1 − (𝐵 / 𝐴)) ∈ ℂ)
13		simp3 1136	. . . . . . . . . 10 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 𝐴 ≠ 𝐵)
14	13	necomd 2994	. . . . . . . . 9 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 𝐵 ≠ 𝐴)
15	3, 1, 4, 14	divne1d 12005	. . . . . . . 8 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐵 / 𝐴) ≠ 1)
16	15	necomd 2994	. . . . . . 7 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 1 ≠ (𝐵 / 𝐴))
17	2, 5, 16	subne0d 11584	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (1 − (𝐵 / 𝐴)) ≠ 0)
18		ax-1ne0 11181	. . . . . . 7 ⊢ 1 ≠ 0
19	18	a1i 11	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 1 ≠ 0)
20		ang.1	. . . . . . 7 ⊢ 𝐹 = (𝑥 ∈ (ℂ ∖ {0}), 𝑦 ∈ (ℂ ∖ {0}) ↦ (ℑ‘(log‘(𝑦 / 𝑥))))
21	20	angcan 26543	. . . . . 6 ⊢ ((((1 − (𝐵 / 𝐴)) ∈ ℂ ∧ (1 − (𝐵 / 𝐴)) ≠ 0) ∧ (1 ∈ ℂ ∧ 1 ≠ 0) ∧ (𝐴 ∈ ℂ ∧ 𝐴 ≠ 0)) → ((𝐴 · (1 − (𝐵 / 𝐴)))𝐹(𝐴 · 1)) = ((1 − (𝐵 / 𝐴))𝐹1))
22	12, 17, 2, 19, 1, 4, 21	syl222anc 1384	. . . . 5 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · (1 − (𝐵 / 𝐴)))𝐹(𝐴 · 1)) = ((1 − (𝐵 / 𝐴))𝐹1))
23	11, 22	eqtr3d 2772	. . . 4 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 − 𝐵)𝐹𝐴) = ((1 − (𝐵 / 𝐴))𝐹1))
24	1, 5, 2	subdid 11674	. . . . . . 7 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴 · ((𝐵 / 𝐴) − 1)) = ((𝐴 · (𝐵 / 𝐴)) − (𝐴 · 1)))
25	8, 7	oveq12d 7429	. . . . . . 7 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · (𝐵 / 𝐴)) − (𝐴 · 1)) = (𝐵 − 𝐴))
26	24, 25	eqtrd 2770	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴 · ((𝐵 / 𝐴) − 1)) = (𝐵 − 𝐴))
27	8, 26	oveq12d 7429	. . . . 5 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · (𝐵 / 𝐴))𝐹(𝐴 · ((𝐵 / 𝐴) − 1))) = (𝐵𝐹(𝐵 − 𝐴)))
28		simp2r 1198	. . . . . . 7 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 𝐵 ≠ 0)
29	3, 1, 28, 4	divne0d 12010	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐵 / 𝐴) ≠ 0)
30	5, 2	subcld 11575	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐵 / 𝐴) − 1) ∈ ℂ)
31	5, 2, 15	subne0d 11584	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐵 / 𝐴) − 1) ≠ 0)
32	20	angcan 26543	. . . . . 6 ⊢ ((((𝐵 / 𝐴) ∈ ℂ ∧ (𝐵 / 𝐴) ≠ 0) ∧ (((𝐵 / 𝐴) − 1) ∈ ℂ ∧ ((𝐵 / 𝐴) − 1) ≠ 0) ∧ (𝐴 ∈ ℂ ∧ 𝐴 ≠ 0)) → ((𝐴 · (𝐵 / 𝐴))𝐹(𝐴 · ((𝐵 / 𝐴) − 1))) = ((𝐵 / 𝐴)𝐹((𝐵 / 𝐴) − 1)))
33	5, 29, 30, 31, 1, 4, 32	syl222anc 1384	. . . . 5 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · (𝐵 / 𝐴))𝐹(𝐴 · ((𝐵 / 𝐴) − 1))) = ((𝐵 / 𝐴)𝐹((𝐵 / 𝐴) − 1)))
34	27, 33	eqtr3d 2772	. . . 4 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐵𝐹(𝐵 − 𝐴)) = ((𝐵 / 𝐴)𝐹((𝐵 / 𝐴) − 1)))
35	23, 34	oveq12d 7429	. . 3 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (((𝐴 − 𝐵)𝐹𝐴) + (𝐵𝐹(𝐵 − 𝐴))) = (((1 − (𝐵 / 𝐴))𝐹1) + ((𝐵 / 𝐴)𝐹((𝐵 / 𝐴) − 1))))
36	7, 8	oveq12d 7429	. . . 4 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · 1)𝐹(𝐴 · (𝐵 / 𝐴))) = (𝐴𝐹𝐵))
37	20	angcan 26543	. . . . 5 ⊢ (((1 ∈ ℂ ∧ 1 ≠ 0) ∧ ((𝐵 / 𝐴) ∈ ℂ ∧ (𝐵 / 𝐴) ≠ 0) ∧ (𝐴 ∈ ℂ ∧ 𝐴 ≠ 0)) → ((𝐴 · 1)𝐹(𝐴 · (𝐵 / 𝐴))) = (1𝐹(𝐵 / 𝐴)))
38	2, 19, 5, 29, 1, 4, 37	syl222anc 1384	. . . 4 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · 1)𝐹(𝐴 · (𝐵 / 𝐴))) = (1𝐹(𝐵 / 𝐴)))
39	36, 38	eqtr3d 2772	. . 3 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴𝐹𝐵) = (1𝐹(𝐵 / 𝐴)))
40	35, 39	oveq12d 7429	. 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((((𝐴 − 𝐵)𝐹𝐴) + (𝐵𝐹(𝐵 − 𝐴))) + (𝐴𝐹𝐵)) = ((((1 − (𝐵 / 𝐴))𝐹1) + ((𝐵 / 𝐴)𝐹((𝐵 / 𝐴) − 1))) + (1𝐹(𝐵 / 𝐴))))
41	20	ang180lem4 26553	. . 3 ⊢ (((𝐵 / 𝐴) ∈ ℂ ∧ (𝐵 / 𝐴) ≠ 0 ∧ (𝐵 / 𝐴) ≠ 1) → ((((1 − (𝐵 / 𝐴))𝐹1) + ((𝐵 / 𝐴)𝐹((𝐵 / 𝐴) − 1))) + (1𝐹(𝐵 / 𝐴))) ∈ {-π, π})
42	5, 29, 15, 41	syl3anc 1369	. 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((((1 − (𝐵 / 𝐴))𝐹1) + ((𝐵 / 𝐴)𝐹((𝐵 / 𝐴) − 1))) + (1𝐹(𝐵 / 𝐴))) ∈ {-π, π})
43	40, 42	eqeltrd 2831	1 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((((𝐴 − 𝐵)𝐹𝐴) + (𝐵𝐹(𝐵 − 𝐴))) + (𝐴𝐹𝐵)) ∈ {-π, π})

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 394 ∧ w3a 1085 = wceq 1539 ∈ wcel 2104 ≠ wne 2938 ∖ cdif 3944 {csn 4627 {cpr 4629 ‘cfv 6542 (class class class)co 7411 ∈ cmpo 7413 ℂcc 11110 0cc0 11112 1c1 11113 + caddc 11115 · cmul 11117 − cmin 11448 -cneg 11449 / cdiv 11875 ℑcim 15049 πcpi 16014 logclog 26299

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2701 ax-rep 5284 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7727 ax-inf2 9638 ax-cnex 11168 ax-resscn 11169 ax-1cn 11170 ax-icn 11171 ax-addcl 11172 ax-addrcl 11173 ax-mulcl 11174 ax-mulrcl 11175 ax-mulcom 11176 ax-addass 11177 ax-mulass 11178 ax-distr 11179 ax-i2m1 11180 ax-1ne0 11181 ax-1rid 11182 ax-rnegex 11183 ax-rrecex 11184 ax-cnre 11185 ax-pre-lttri 11186 ax-pre-lttrn 11187 ax-pre-ltadd 11188 ax-pre-mulgt0 11189 ax-pre-sup 11190 ax-addf 11191

This theorem depends on definitions: df-bi 206 df-an 395 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2532 df-eu 2561 df-clab 2708 df-cleq 2722 df-clel 2808 df-nfc 2883 df-ne 2939 df-nel 3045 df-ral 3060 df-rex 3069 df-rmo 3374 df-reu 3375 df-rab 3431 df-v 3474 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-tp 4632 df-op 4634 df-uni 4908 df-int 4950 df-iun 4998 df-iin 4999 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-se 5631 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-isom 6551 df-riota 7367 df-ov 7414 df-oprab 7415 df-mpo 7416 df-of 7672 df-om 7858 df-1st 7977 df-2nd 7978 df-supp 8149 df-frecs 8268 df-wrecs 8299 df-recs 8373 df-rdg 8412 df-1o 8468 df-2o 8469 df-er 8705 df-map 8824 df-pm 8825 df-ixp 8894 df-en 8942 df-dom 8943 df-sdom 8944 df-fin 8945 df-fsupp 9364 df-fi 9408 df-sup 9439 df-inf 9440 df-oi 9507 df-card 9936 df-pnf 11254 df-mnf 11255 df-xr 11256 df-ltxr 11257 df-le 11258 df-sub 11450 df-neg 11451 df-div 11876 df-nn 12217 df-2 12279 df-3 12280 df-4 12281 df-5 12282 df-6 12283 df-7 12284 df-8 12285 df-9 12286 df-n0 12477 df-z 12563 df-dec 12682 df-uz 12827 df-q 12937 df-rp 12979 df-xneg 13096 df-xadd 13097 df-xmul 13098 df-ioo 13332 df-ioc 13333 df-ico 13334 df-icc 13335 df-fz 13489 df-fzo 13632 df-fl 13761 df-mod 13839 df-seq 13971 df-exp 14032 df-fac 14238 df-bc 14267 df-hash 14295 df-shft 15018 df-cj 15050 df-re 15051 df-im 15052 df-sqrt 15186 df-abs 15187 df-limsup 15419 df-clim 15436 df-rlim 15437 df-sum 15637 df-ef 16015 df-sin 16017 df-cos 16018 df-pi 16020 df-struct 17084 df-sets 17101 df-slot 17119 df-ndx 17131 df-base 17149 df-ress 17178 df-plusg 17214 df-mulr 17215 df-starv 17216 df-sca 17217 df-vsca 17218 df-ip 17219 df-tset 17220 df-ple 17221 df-ds 17223 df-unif 17224 df-hom 17225 df-cco 17226 df-rest 17372 df-topn 17373 df-0g 17391 df-gsum 17392 df-topgen 17393 df-pt 17394 df-prds 17397 df-xrs 17452 df-qtop 17457 df-imas 17458 df-xps 17460 df-mre 17534 df-mrc 17535 df-acs 17537 df-mgm 18565 df-sgrp 18644 df-mnd 18660 df-submnd 18706 df-mulg 18987 df-cntz 19222 df-cmn 19691 df-psmet 21136 df-xmet 21137 df-met 21138 df-bl 21139 df-mopn 21140 df-fbas 21141 df-fg 21142 df-cnfld 21145 df-top 22616 df-topon 22633 df-topsp 22655 df-bases 22669 df-cld 22743 df-ntr 22744 df-cls 22745 df-nei 22822 df-lp 22860 df-perf 22861 df-cn 22951 df-cnp 22952 df-haus 23039 df-tx 23286 df-hmeo 23479 df-fil 23570 df-fm 23662 df-flim 23663 df-flf 23664 df-xms 24046 df-ms 24047 df-tms 24048 df-cncf 24618 df-limc 25615 df-dv 25616 df-log 26301

This theorem is referenced by: ang180 26555

W3C validator