cxpmul2z - Metamath Proof Explorer

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Theorem cxpmul2z 26181

Description: Generalize cxpmul2 26179 to negative integers. (Contributed by Mario Carneiro, 23-Apr-2015.)

**Assertion**
Ref	Expression
cxpmul2z	⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐶 ∈ ℤ)) → (𝐴↑_𝑐(𝐵 · 𝐶)) = ((𝐴↑_𝑐𝐵)↑𝐶))

**Proof of Theorem cxpmul2z**
Step	Hyp	Ref	Expression
1		elznn0 12569	. . 3 ⊢ (𝐶 ∈ ℤ ↔ (𝐶 ∈ ℝ ∧ (𝐶 ∈ ℕ₀ ∨ -𝐶 ∈ ℕ₀)))
2		cxpmul2 26179	. . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℕ₀) → (𝐴↑_𝑐(𝐵 · 𝐶)) = ((𝐴↑_𝑐𝐵)↑𝐶))
3	2	3expia 1122	. . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐶 ∈ ℕ₀ → (𝐴↑_𝑐(𝐵 · 𝐶)) = ((𝐴↑_𝑐𝐵)↑𝐶)))
4	3	ad4ant13 750	. . . . 5 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ 𝐶 ∈ ℝ) → (𝐶 ∈ ℕ₀ → (𝐴↑_𝑐(𝐵 · 𝐶)) = ((𝐴↑_𝑐𝐵)↑𝐶)))
5		simplll 774	. . . . . . . . 9 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → 𝐴 ∈ ℂ)
6		simplr 768	. . . . . . . . 9 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → 𝐵 ∈ ℂ)
7		simprr 772	. . . . . . . . 9 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → -𝐶 ∈ ℕ₀)
8		cxpmul2 26179	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ -𝐶 ∈ ℕ₀) → (𝐴↑_𝑐(𝐵 · -𝐶)) = ((𝐴↑_𝑐𝐵)↑-𝐶))
9	5, 6, 7, 8	syl3anc 1372	. . . . . . . 8 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → (𝐴↑_𝑐(𝐵 · -𝐶)) = ((𝐴↑_𝑐𝐵)↑-𝐶))
10	9	oveq2d 7420	. . . . . . 7 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → (1 / (𝐴↑_𝑐(𝐵 · -𝐶))) = (1 / ((𝐴↑_𝑐𝐵)↑-𝐶)))
11		simprl 770	. . . . . . . . . . . . 13 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → 𝐶 ∈ ℝ)
12	11	recnd 11238	. . . . . . . . . . . 12 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → 𝐶 ∈ ℂ)
13	6, 12	mulneg2d 11664	. . . . . . . . . . 11 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → (𝐵 · -𝐶) = -(𝐵 · 𝐶))
14	13	negeqd 11450	. . . . . . . . . 10 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → -(𝐵 · -𝐶) = --(𝐵 · 𝐶))
15	6, 12	mulcld 11230	. . . . . . . . . . 11 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → (𝐵 · 𝐶) ∈ ℂ)
16	15	negnegd 11558	. . . . . . . . . 10 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → --(𝐵 · 𝐶) = (𝐵 · 𝐶))
17	14, 16	eqtrd 2773	. . . . . . . . 9 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → -(𝐵 · -𝐶) = (𝐵 · 𝐶))
18	17	oveq2d 7420	. . . . . . . 8 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → (𝐴↑_𝑐-(𝐵 · -𝐶)) = (𝐴↑_𝑐(𝐵 · 𝐶)))
19		simpllr 775	. . . . . . . . 9 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → 𝐴 ≠ 0)
20	12	negcld 11554	. . . . . . . . . 10 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → -𝐶 ∈ ℂ)
21	6, 20	mulcld 11230	. . . . . . . . 9 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → (𝐵 · -𝐶) ∈ ℂ)
22		cxpneg 26171	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ (𝐵 · -𝐶) ∈ ℂ) → (𝐴↑_𝑐-(𝐵 · -𝐶)) = (1 / (𝐴↑_𝑐(𝐵 · -𝐶))))
23	5, 19, 21, 22	syl3anc 1372	. . . . . . . 8 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → (𝐴↑_𝑐-(𝐵 · -𝐶)) = (1 / (𝐴↑_𝑐(𝐵 · -𝐶))))
24	18, 23	eqtr3d 2775	. . . . . . 7 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → (𝐴↑_𝑐(𝐵 · 𝐶)) = (1 / (𝐴↑_𝑐(𝐵 · -𝐶))))
25		cxpcl 26164	. . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴↑_𝑐𝐵) ∈ ℂ)
26	25	ad4ant13 750	. . . . . . . 8 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → (𝐴↑_𝑐𝐵) ∈ ℂ)
27		expneg2 14032	. . . . . . . 8 ⊢ (((𝐴↑_𝑐𝐵) ∈ ℂ ∧ 𝐶 ∈ ℂ ∧ -𝐶 ∈ ℕ₀) → ((𝐴↑_𝑐𝐵)↑𝐶) = (1 / ((𝐴↑_𝑐𝐵)↑-𝐶)))
28	26, 12, 7, 27	syl3anc 1372	. . . . . . 7 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → ((𝐴↑_𝑐𝐵)↑𝐶) = (1 / ((𝐴↑_𝑐𝐵)↑-𝐶)))
29	10, 24, 28	3eqtr4d 2783	. . . . . 6 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℝ ∧ -𝐶 ∈ ℕ₀)) → (𝐴↑_𝑐(𝐵 · 𝐶)) = ((𝐴↑_𝑐𝐵)↑𝐶))
30	29	expr 458	. . . . 5 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ 𝐶 ∈ ℝ) → (-𝐶 ∈ ℕ₀ → (𝐴↑_𝑐(𝐵 · 𝐶)) = ((𝐴↑_𝑐𝐵)↑𝐶)))
31	4, 30	jaod 858	. . . 4 ⊢ ((((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) ∧ 𝐶 ∈ ℝ) → ((𝐶 ∈ ℕ₀ ∨ -𝐶 ∈ ℕ₀) → (𝐴↑_𝑐(𝐵 · 𝐶)) = ((𝐴↑_𝑐𝐵)↑𝐶)))
32	31	expimpd 455	. . 3 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) → ((𝐶 ∈ ℝ ∧ (𝐶 ∈ ℕ₀ ∨ -𝐶 ∈ ℕ₀)) → (𝐴↑_𝑐(𝐵 · 𝐶)) = ((𝐴↑_𝑐𝐵)↑𝐶)))
33	1, 32	biimtrid 241	. 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℂ) → (𝐶 ∈ ℤ → (𝐴↑_𝑐(𝐵 · 𝐶)) = ((𝐴↑_𝑐𝐵)↑𝐶)))
34	33	impr 456	1 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℂ ∧ 𝐶 ∈ ℤ)) → (𝐴↑_𝑐(𝐵 · 𝐶)) = ((𝐴↑_𝑐𝐵)↑𝐶))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 397 ∨ wo 846 = wceq 1542 ∈ wcel 2107 ≠ wne 2941 (class class class)co 7404 ℂcc 11104 ℝcr 11105 0cc0 11106 1c1 11107 · cmul 11111 -cneg 11441 / cdiv 11867 ℕ₀cn0 12468 ℤcz 12554 ↑cexp 14023 ↑_𝑐ccxp 26046

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 5284 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7720 ax-inf2 9632 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 ax-pre-sup 11184 ax-addf 11185 ax-mulf 11186

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 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 6297 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6492 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-isom 6549 df-riota 7360 df-ov 7407 df-oprab 7408 df-mpo 7409 df-of 7665 df-om 7851 df-1st 7970 df-2nd 7971 df-supp 8142 df-frecs 8261 df-wrecs 8292 df-recs 8366 df-rdg 8405 df-1o 8461 df-2o 8462 df-er 8699 df-map 8818 df-pm 8819 df-ixp 8888 df-en 8936 df-dom 8937 df-sdom 8938 df-fin 8939 df-fsupp 9358 df-fi 9402 df-sup 9433 df-inf 9434 df-oi 9501 df-card 9930 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11442 df-neg 11443 df-div 11868 df-nn 12209 df-2 12271 df-3 12272 df-4 12273 df-5 12274 df-6 12275 df-7 12276 df-8 12277 df-9 12278 df-n0 12469 df-z 12555 df-dec 12674 df-uz 12819 df-q 12929 df-rp 12971 df-xneg 13088 df-xadd 13089 df-xmul 13090 df-ioo 13324 df-ioc 13325 df-ico 13326 df-icc 13327 df-fz 13481 df-fzo 13624 df-fl 13753 df-mod 13831 df-seq 13963 df-exp 14024 df-fac 14230 df-bc 14259 df-hash 14287 df-shft 15010 df-cj 15042 df-re 15043 df-im 15044 df-sqrt 15178 df-abs 15179 df-limsup 15411 df-clim 15428 df-rlim 15429 df-sum 15629 df-ef 16007 df-sin 16009 df-cos 16010 df-pi 16012 df-struct 17076 df-sets 17093 df-slot 17111 df-ndx 17123 df-base 17141 df-ress 17170 df-plusg 17206 df-mulr 17207 df-starv 17208 df-sca 17209 df-vsca 17210 df-ip 17211 df-tset 17212 df-ple 17213 df-ds 17215 df-unif 17216 df-hom 17217 df-cco 17218 df-rest 17364 df-topn 17365 df-0g 17383 df-gsum 17384 df-topgen 17385 df-pt 17386 df-prds 17389 df-xrs 17444 df-qtop 17449 df-imas 17450 df-xps 17452 df-mre 17526 df-mrc 17527 df-acs 17529 df-mgm 18557 df-sgrp 18606 df-mnd 18622 df-submnd 18668 df-mulg 18945 df-cntz 19175 df-cmn 19643 df-psmet 20921 df-xmet 20922 df-met 20923 df-bl 20924 df-mopn 20925 df-fbas 20926 df-fg 20927 df-cnfld 20930 df-top 22378 df-topon 22395 df-topsp 22417 df-bases 22431 df-cld 22505 df-ntr 22506 df-cls 22507 df-nei 22584 df-lp 22622 df-perf 22623 df-cn 22713 df-cnp 22714 df-haus 22801 df-tx 23048 df-hmeo 23241 df-fil 23332 df-fm 23424 df-flim 23425 df-flf 23426 df-xms 23808 df-ms 23809 df-tms 23810 df-cncf 24376 df-limc 25365 df-dv 25366 df-log 26047 df-cxp 26048

This theorem is referenced by: cxpmul2zd 26206

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