quart1cl - Metamath Proof Explorer

	Metamath Proof Explorer		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > quart1cl		Structured version Visualization version GIF version

Theorem quart1cl 26799

Description: Closure lemmas for quart 26806. (Contributed by Mario Carneiro, 7-May-2015.)

**Hypotheses**
Ref	Expression
quart1.a	⊢ (𝜑 → 𝐴 ∈ ℂ)
quart1.b	⊢ (𝜑 → 𝐵 ∈ ℂ)
quart1.c	⊢ (𝜑 → 𝐶 ∈ ℂ)
quart1.d	⊢ (𝜑 → 𝐷 ∈ ℂ)
quart1.p	⊢ (𝜑 → 𝑃 = (𝐵 − ((3 / 8) · (𝐴↑2))))
quart1.q	⊢ (𝜑 → 𝑄 = ((𝐶 − ((𝐴 · 𝐵) / 2)) + ((𝐴↑3) / 8)))
quart1.r	⊢ (𝜑 → 𝑅 = ((𝐷 − ((𝐶 · 𝐴) / 4)) + ((((𝐴↑2) · 𝐵) / ;16) − ((3 / ;;256) · (𝐴↑4)))))

**Assertion**
Ref	Expression
quart1cl	⊢ (𝜑 → (𝑃 ∈ ℂ ∧ 𝑄 ∈ ℂ ∧ 𝑅 ∈ ℂ))

**Proof of Theorem quart1cl**
Step	Hyp	Ref	Expression
1		quart1.p	. . 3 ⊢ (𝜑 → 𝑃 = (𝐵 − ((3 / 8) · (𝐴↑2))))
2		quart1.b	. . . 4 ⊢ (𝜑 → 𝐵 ∈ ℂ)
3		3cn 12324	. . . . . 6 ⊢ 3 ∈ ℂ
4		8cn 12340	. . . . . 6 ⊢ 8 ∈ ℂ
5		8nn 12338	. . . . . . 7 ⊢ 8 ∈ ℕ
6	5	nnne0i 12283	. . . . . 6 ⊢ 8 ≠ 0
7	3, 4, 6	divcli 11987	. . . . 5 ⊢ (3 / 8) ∈ ℂ
8		quart1.a	. . . . . 6 ⊢ (𝜑 → 𝐴 ∈ ℂ)
9	8	sqcld 14141	. . . . 5 ⊢ (𝜑 → (𝐴↑2) ∈ ℂ)
10		mulcl 11223	. . . . 5 ⊢ (((3 / 8) ∈ ℂ ∧ (𝐴↑2) ∈ ℂ) → ((3 / 8) · (𝐴↑2)) ∈ ℂ)
11	7, 9, 10	sylancr 586	. . . 4 ⊢ (𝜑 → ((3 / 8) · (𝐴↑2)) ∈ ℂ)
12	2, 11	subcld 11602	. . 3 ⊢ (𝜑 → (𝐵 − ((3 / 8) · (𝐴↑2))) ∈ ℂ)
13	1, 12	eqeltrd 2829	. 2 ⊢ (𝜑 → 𝑃 ∈ ℂ)
14		quart1.q	. . 3 ⊢ (𝜑 → 𝑄 = ((𝐶 − ((𝐴 · 𝐵) / 2)) + ((𝐴↑3) / 8)))
15		quart1.c	. . . . 5 ⊢ (𝜑 → 𝐶 ∈ ℂ)
16	8, 2	mulcld 11265	. . . . . 6 ⊢ (𝜑 → (𝐴 · 𝐵) ∈ ℂ)
17	16	halfcld 12488	. . . . 5 ⊢ (𝜑 → ((𝐴 · 𝐵) / 2) ∈ ℂ)
18	15, 17	subcld 11602	. . . 4 ⊢ (𝜑 → (𝐶 − ((𝐴 · 𝐵) / 2)) ∈ ℂ)
19		3nn0 12521	. . . . . 6 ⊢ 3 ∈ ℕ₀
20		expcl 14077	. . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 3 ∈ ℕ₀) → (𝐴↑3) ∈ ℂ)
21	8, 19, 20	sylancl 585	. . . . 5 ⊢ (𝜑 → (𝐴↑3) ∈ ℂ)
22	4	a1i 11	. . . . 5 ⊢ (𝜑 → 8 ∈ ℂ)
23	6	a1i 11	. . . . 5 ⊢ (𝜑 → 8 ≠ 0)
24	21, 22, 23	divcld 12021	. . . 4 ⊢ (𝜑 → ((𝐴↑3) / 8) ∈ ℂ)
25	18, 24	addcld 11264	. . 3 ⊢ (𝜑 → ((𝐶 − ((𝐴 · 𝐵) / 2)) + ((𝐴↑3) / 8)) ∈ ℂ)
26	14, 25	eqeltrd 2829	. 2 ⊢ (𝜑 → 𝑄 ∈ ℂ)
27		quart1.r	. . 3 ⊢ (𝜑 → 𝑅 = ((𝐷 − ((𝐶 · 𝐴) / 4)) + ((((𝐴↑2) · 𝐵) / ;16) − ((3 / ;;256) · (𝐴↑4)))))
28		quart1.d	. . . . 5 ⊢ (𝜑 → 𝐷 ∈ ℂ)
29	15, 8	mulcld 11265	. . . . . 6 ⊢ (𝜑 → (𝐶 · 𝐴) ∈ ℂ)
30		4cn 12328	. . . . . . 7 ⊢ 4 ∈ ℂ
31	30	a1i 11	. . . . . 6 ⊢ (𝜑 → 4 ∈ ℂ)
32		4ne0 12351	. . . . . . 7 ⊢ 4 ≠ 0
33	32	a1i 11	. . . . . 6 ⊢ (𝜑 → 4 ≠ 0)
34	29, 31, 33	divcld 12021	. . . . 5 ⊢ (𝜑 → ((𝐶 · 𝐴) / 4) ∈ ℂ)
35	28, 34	subcld 11602	. . . 4 ⊢ (𝜑 → (𝐷 − ((𝐶 · 𝐴) / 4)) ∈ ℂ)
36	9, 2	mulcld 11265	. . . . . 6 ⊢ (𝜑 → ((𝐴↑2) · 𝐵) ∈ ℂ)
37		1nn0 12519	. . . . . . . . 9 ⊢ 1 ∈ ℕ₀
38		6nn 12332	. . . . . . . . 9 ⊢ 6 ∈ ℕ
39	37, 38	decnncl 12728	. . . . . . . 8 ⊢ ;16 ∈ ℕ
40	39	nncni 12253	. . . . . . 7 ⊢ ;16 ∈ ℂ
41	40	a1i 11	. . . . . 6 ⊢ (𝜑 → ;16 ∈ ℂ)
42	39	nnne0i 12283	. . . . . . 7 ⊢ ;16 ≠ 0
43	42	a1i 11	. . . . . 6 ⊢ (𝜑 → ;16 ≠ 0)
44	36, 41, 43	divcld 12021	. . . . 5 ⊢ (𝜑 → (((𝐴↑2) · 𝐵) / ;16) ∈ ℂ)
45		2nn0 12520	. . . . . . . . . 10 ⊢ 2 ∈ ℕ₀
46		5nn0 12523	. . . . . . . . . 10 ⊢ 5 ∈ ℕ₀
47	45, 46	deccl 12723	. . . . . . . . 9 ⊢ ;25 ∈ ℕ₀
48	47, 38	decnncl 12728	. . . . . . . 8 ⊢ ;;256 ∈ ℕ
49	48	nncni 12253	. . . . . . 7 ⊢ ;;256 ∈ ℂ
50	48	nnne0i 12283	. . . . . . 7 ⊢ ;;256 ≠ 0
51	3, 49, 50	divcli 11987	. . . . . 6 ⊢ (3 / ;;256) ∈ ℂ
52		4nn0 12522	. . . . . . 7 ⊢ 4 ∈ ℕ₀
53		expcl 14077	. . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ 4 ∈ ℕ₀) → (𝐴↑4) ∈ ℂ)
54	8, 52, 53	sylancl 585	. . . . . 6 ⊢ (𝜑 → (𝐴↑4) ∈ ℂ)
55		mulcl 11223	. . . . . 6 ⊢ (((3 / ;;256) ∈ ℂ ∧ (𝐴↑4) ∈ ℂ) → ((3 / ;;256) · (𝐴↑4)) ∈ ℂ)
56	51, 54, 55	sylancr 586	. . . . 5 ⊢ (𝜑 → ((3 / ;;256) · (𝐴↑4)) ∈ ℂ)
57	44, 56	subcld 11602	. . . 4 ⊢ (𝜑 → ((((𝐴↑2) · 𝐵) / ;16) − ((3 / ;;256) · (𝐴↑4))) ∈ ℂ)
58	35, 57	addcld 11264	. . 3 ⊢ (𝜑 → ((𝐷 − ((𝐶 · 𝐴) / 4)) + ((((𝐴↑2) · 𝐵) / ;16) − ((3 / ;;256) · (𝐴↑4)))) ∈ ℂ)
59	27, 58	eqeltrd 2829	. 2 ⊢ (𝜑 → 𝑅 ∈ ℂ)
60	13, 26, 59	3jca 1126	1 ⊢ (𝜑 → (𝑃 ∈ ℂ ∧ 𝑄 ∈ ℂ ∧ 𝑅 ∈ ℂ))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ w3a 1085 = wceq 1534 ∈ wcel 2099 ≠ wne 2937 (class class class)co 7420 ℂcc 11137 0cc0 11139 1c1 11140 + caddc 11142 · cmul 11144 − cmin 11475 / cdiv 11902 2c2 12298 3c3 12299 4c4 12300 5c5 12301 6c6 12302 8c8 12304 ℕ₀cn0 12503 cdc 12708 ↑cexp 14059

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2699 ax-sep 5299 ax-nul 5306 ax-pow 5365 ax-pr 5429 ax-un 7740 ax-cnex 11195 ax-resscn 11196 ax-1cn 11197 ax-icn 11198 ax-addcl 11199 ax-addrcl 11200 ax-mulcl 11201 ax-mulrcl 11202 ax-mulcom 11203 ax-addass 11204 ax-mulass 11205 ax-distr 11206 ax-i2m1 11207 ax-1ne0 11208 ax-1rid 11209 ax-rnegex 11210 ax-rrecex 11211 ax-cnre 11212 ax-pre-lttri 11213 ax-pre-lttrn 11214 ax-pre-ltadd 11215 ax-pre-mulgt0 11216

This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2530 df-eu 2559 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-rmo 3373 df-reu 3374 df-rab 3430 df-v 3473 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4909 df-iun 4998 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5576 df-eprel 5582 df-po 5590 df-so 5591 df-fr 5633 df-we 5635 df-xp 5684 df-rel 5685 df-cnv 5686 df-co 5687 df-dm 5688 df-rn 5689 df-res 5690 df-ima 5691 df-pred 6305 df-ord 6372 df-on 6373 df-lim 6374 df-suc 6375 df-iota 6500 df-fun 6550 df-fn 6551 df-f 6552 df-f1 6553 df-fo 6554 df-f1o 6555 df-fv 6556 df-riota 7376 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7871 df-2nd 7994 df-frecs 8287 df-wrecs 8318 df-recs 8392 df-rdg 8431 df-er 8725 df-en 8965 df-dom 8966 df-sdom 8967 df-pnf 11281 df-mnf 11282 df-xr 11283 df-ltxr 11284 df-le 11285 df-sub 11477 df-neg 11478 df-div 11903 df-nn 12244 df-2 12306 df-3 12307 df-4 12308 df-5 12309 df-6 12310 df-7 12311 df-8 12312 df-9 12313 df-n0 12504 df-z 12590 df-dec 12709 df-uz 12854 df-seq 14000 df-exp 14060

This theorem is referenced by: quart1 26801 quartlem2 26803 quartlem3 26804 quartlem4 26805 quart 26806

W3C validator

	
		OSZAR »