ang180lem5 - Metamath Proof Explorer

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Theorem ang180lem5 26318

Description: Lemma for ang180 26319: 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 1198	. . . . . . . 8 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 𝐴 ∈ ℂ)
2		1cnd 11209	. . . . . . . 8 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 1 ∈ ℂ)
3		simp2l 1200	. . . . . . . . 9 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 𝐵 ∈ ℂ)
4		simp1r 1199	. . . . . . . . 9 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 𝐴 ≠ 0)
5	3, 1, 4	divcld 11990	. . . . . . . 8 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐵 / 𝐴) ∈ ℂ)
6	1, 2, 5	subdid 11670	. . . . . . 7 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴 · (1 − (𝐵 / 𝐴))) = ((𝐴 · 1) − (𝐴 · (𝐵 / 𝐴))))
7	1	mulridd 11231	. . . . . . . 8 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴 · 1) = 𝐴)
8	3, 1, 4	divcan2d 11992	. . . . . . . 8 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴 · (𝐵 / 𝐴)) = 𝐵)
9	7, 8	oveq12d 7427	. . . . . . 7 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · 1) − (𝐴 · (𝐵 / 𝐴))) = (𝐴 − 𝐵))
10	6, 9	eqtrd 2773	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴 · (1 − (𝐵 / 𝐴))) = (𝐴 − 𝐵))
11	10, 7	oveq12d 7427	. . . . 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 11571	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (1 − (𝐵 / 𝐴)) ∈ ℂ)
13		simp3 1139	. . . . . . . . . 10 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 𝐴 ≠ 𝐵)
14	13	necomd 2997	. . . . . . . . 9 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 𝐵 ≠ 𝐴)
15	3, 1, 4, 14	divne1d 12001	. . . . . . . 8 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐵 / 𝐴) ≠ 1)
16	15	necomd 2997	. . . . . . 7 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 1 ≠ (𝐵 / 𝐴))
17	2, 5, 16	subne0d 11580	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (1 − (𝐵 / 𝐴)) ≠ 0)
18		ax-1ne0 11179	. . . . . . 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 26307	. . . . . 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 1387	. . . . 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 2775	. . . 4 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 − 𝐵)𝐹𝐴) = ((1 − (𝐵 / 𝐴))𝐹1))
24	1, 5, 2	subdid 11670	. . . . . . 7 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴 · ((𝐵 / 𝐴) − 1)) = ((𝐴 · (𝐵 / 𝐴)) − (𝐴 · 1)))
25	8, 7	oveq12d 7427	. . . . . . 7 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · (𝐵 / 𝐴)) − (𝐴 · 1)) = (𝐵 − 𝐴))
26	24, 25	eqtrd 2773	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴 · ((𝐵 / 𝐴) − 1)) = (𝐵 − 𝐴))
27	8, 26	oveq12d 7427	. . . . 5 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · (𝐵 / 𝐴))𝐹(𝐴 · ((𝐵 / 𝐴) − 1))) = (𝐵𝐹(𝐵 − 𝐴)))
28		simp2r 1201	. . . . . . 7 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → 𝐵 ≠ 0)
29	3, 1, 28, 4	divne0d 12006	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐵 / 𝐴) ≠ 0)
30	5, 2	subcld 11571	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐵 / 𝐴) − 1) ∈ ℂ)
31	5, 2, 15	subne0d 11580	. . . . . 6 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐵 / 𝐴) − 1) ≠ 0)
32	20	angcan 26307	. . . . . 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 1387	. . . . 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 2775	. . . 4 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐵𝐹(𝐵 − 𝐴)) = ((𝐵 / 𝐴)𝐹((𝐵 / 𝐴) − 1)))
35	23, 34	oveq12d 7427	. . 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 7427	. . . 4 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · 1)𝐹(𝐴 · (𝐵 / 𝐴))) = (𝐴𝐹𝐵))
37	20	angcan 26307	. . . . 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 1387	. . . 4 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → ((𝐴 · 1)𝐹(𝐴 · (𝐵 / 𝐴))) = (1𝐹(𝐵 / 𝐴)))
39	36, 38	eqtr3d 2775	. . 3 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0) ∧ 𝐴 ≠ 𝐵) → (𝐴𝐹𝐵) = (1𝐹(𝐵 / 𝐴)))
40	35, 39	oveq12d 7427	. 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 26317	. . 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 1372	. 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 2834	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 397 ∧ w3a 1088 = wceq 1542 ∈ wcel 2107 ≠ wne 2941 ∖ cdif 3946 {csn 4629 {cpr 4631 ‘cfv 6544 (class class class)co 7409 ∈ cmpo 7411 ℂcc 11108 0cc0 11110 1c1 11111 + caddc 11113 · cmul 11115 − cmin 11444 -cneg 11445 / cdiv 11871 ℑcim 15045 πcpi 16010 logclog 26063

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-rep 5286 ax-sep 5300 ax-nul 5307 ax-pow 5364 ax-pr 5428 ax-un 7725 ax-inf2 9636 ax-cnex 11166 ax-resscn 11167 ax-1cn 11168 ax-icn 11169 ax-addcl 11170 ax-addrcl 11171 ax-mulcl 11172 ax-mulrcl 11173 ax-mulcom 11174 ax-addass 11175 ax-mulass 11176 ax-distr 11177 ax-i2m1 11178 ax-1ne0 11179 ax-1rid 11180 ax-rnegex 11181 ax-rrecex 11182 ax-cnre 11183 ax-pre-lttri 11184 ax-pre-lttrn 11185 ax-pre-ltadd 11186 ax-pre-mulgt0 11187 ax-pre-sup 11188 ax-addf 11189 ax-mulf 11190

This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3377 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-tp 4634 df-op 4636 df-uni 4910 df-int 4952 df-iun 5000 df-iin 5001 df-br 5150 df-opab 5212 df-mpt 5233 df-tr 5267 df-id 5575 df-eprel 5581 df-po 5589 df-so 5590 df-fr 5632 df-se 5633 df-we 5634 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-f1 6549 df-fo 6550 df-f1o 6551 df-fv 6552 df-isom 6553 df-riota 7365 df-ov 7412 df-oprab 7413 df-mpo 7414 df-of 7670 df-om 7856 df-1st 7975 df-2nd 7976 df-supp 8147 df-frecs 8266 df-wrecs 8297 df-recs 8371 df-rdg 8410 df-1o 8466 df-2o 8467 df-er 8703 df-map 8822 df-pm 8823 df-ixp 8892 df-en 8940 df-dom 8941 df-sdom 8942 df-fin 8943 df-fsupp 9362 df-fi 9406 df-sup 9437 df-inf 9438 df-oi 9505 df-card 9934 df-pnf 11250 df-mnf 11251 df-xr 11252 df-ltxr 11253 df-le 11254 df-sub 11446 df-neg 11447 df-div 11872 df-nn 12213 df-2 12275 df-3 12276 df-4 12277 df-5 12278 df-6 12279 df-7 12280 df-8 12281 df-9 12282 df-n0 12473 df-z 12559 df-dec 12678 df-uz 12823 df-q 12933 df-rp 12975 df-xneg 13092 df-xadd 13093 df-xmul 13094 df-ioo 13328 df-ioc 13329 df-ico 13330 df-icc 13331 df-fz 13485 df-fzo 13628 df-fl 13757 df-mod 13835 df-seq 13967 df-exp 14028 df-fac 14234 df-bc 14263 df-hash 14291 df-shft 15014 df-cj 15046 df-re 15047 df-im 15048 df-sqrt 15182 df-abs 15183 df-limsup 15415 df-clim 15432 df-rlim 15433 df-sum 15633 df-ef 16011 df-sin 16013 df-cos 16014 df-pi 16016 df-struct 17080 df-sets 17097 df-slot 17115 df-ndx 17127 df-base 17145 df-ress 17174 df-plusg 17210 df-mulr 17211 df-starv 17212 df-sca 17213 df-vsca 17214 df-ip 17215 df-tset 17216 df-ple 17217 df-ds 17219 df-unif 17220 df-hom 17221 df-cco 17222 df-rest 17368 df-topn 17369 df-0g 17387 df-gsum 17388 df-topgen 17389 df-pt 17390 df-prds 17393 df-xrs 17448 df-qtop 17453 df-imas 17454 df-xps 17456 df-mre 17530 df-mrc 17531 df-acs 17533 df-mgm 18561 df-sgrp 18610 df-mnd 18626 df-submnd 18672 df-mulg 18951 df-cntz 19181 df-cmn 19650 df-psmet 20936 df-xmet 20937 df-met 20938 df-bl 20939 df-mopn 20940 df-fbas 20941 df-fg 20942 df-cnfld 20945 df-top 22396 df-topon 22413 df-topsp 22435 df-bases 22449 df-cld 22523 df-ntr 22524 df-cls 22525 df-nei 22602 df-lp 22640 df-perf 22641 df-cn 22731 df-cnp 22732 df-haus 22819 df-tx 23066 df-hmeo 23259 df-fil 23350 df-fm 23442 df-flim 23443 df-flf 23444 df-xms 23826 df-ms 23827 df-tms 23828 df-cncf 24394 df-limc 25383 df-dv 25384 df-log 26065

This theorem is referenced by: ang180 26319

W3C validator