perfect1 - Metamath Proof Explorer

	Metamath Proof Explorer		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > perfect1		Structured version Visualization version GIF version

Theorem perfect1 26613

Description: Euclid's contribution to the Euclid-Euler theorem. A number of the form 2↑(𝑝 − 1) · (2↑𝑝 − 1) is a perfect number. (Contributed by Mario Carneiro, 17-May-2016.)

**Assertion**
Ref	Expression
perfect1	⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (1 σ ((2↑(𝑃 − 1)) · ((2↑𝑃) − 1))) = ((2↑𝑃) · ((2↑𝑃) − 1)))

**Proof of Theorem perfect1**
Step	Hyp	Ref	Expression
1		mersenne 26612	. . . . 5 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → 𝑃 ∈ ℙ)
2		prmnn 16561	. . . . 5 ⊢ (𝑃 ∈ ℙ → 𝑃 ∈ ℕ)
3	1, 2	syl 17	. . . 4 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → 𝑃 ∈ ℕ)
4		1sgm2ppw 26585	. . . 4 ⊢ (𝑃 ∈ ℕ → (1 σ (2↑(𝑃 − 1))) = ((2↑𝑃) − 1))
5	3, 4	syl 17	. . 3 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (1 σ (2↑(𝑃 − 1))) = ((2↑𝑃) − 1))
6		1sgmprm 26584	. . . . 5 ⊢ (((2↑𝑃) − 1) ∈ ℙ → (1 σ ((2↑𝑃) − 1)) = (((2↑𝑃) − 1) + 1))
7	6	adantl 482	. . . 4 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (1 σ ((2↑𝑃) − 1)) = (((2↑𝑃) − 1) + 1))
8		2nn 12235	. . . . . . 7 ⊢ 2 ∈ ℕ
9	3	nnnn0d 12482	. . . . . . 7 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → 𝑃 ∈ ℕ₀)
10		nnexpcl 13990	. . . . . . 7 ⊢ ((2 ∈ ℕ ∧ 𝑃 ∈ ℕ₀) → (2↑𝑃) ∈ ℕ)
11	8, 9, 10	sylancr 587	. . . . . 6 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (2↑𝑃) ∈ ℕ)
12	11	nncnd 12178	. . . . 5 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (2↑𝑃) ∈ ℂ)
13		ax-1cn 11118	. . . . 5 ⊢ 1 ∈ ℂ
14		npcan 11419	. . . . 5 ⊢ (((2↑𝑃) ∈ ℂ ∧ 1 ∈ ℂ) → (((2↑𝑃) − 1) + 1) = (2↑𝑃))
15	12, 13, 14	sylancl 586	. . . 4 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (((2↑𝑃) − 1) + 1) = (2↑𝑃))
16	7, 15	eqtrd 2771	. . 3 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (1 σ ((2↑𝑃) − 1)) = (2↑𝑃))
17	5, 16	oveq12d 7380	. 2 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ((1 σ (2↑(𝑃 − 1))) · (1 σ ((2↑𝑃) − 1))) = (((2↑𝑃) − 1) · (2↑𝑃)))
18	13	a1i 11	. . 3 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → 1 ∈ ℂ)
19		nnm1nn0 12463	. . . . 5 ⊢ (𝑃 ∈ ℕ → (𝑃 − 1) ∈ ℕ₀)
20	3, 19	syl 17	. . . 4 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (𝑃 − 1) ∈ ℕ₀)
21		nnexpcl 13990	. . . 4 ⊢ ((2 ∈ ℕ ∧ (𝑃 − 1) ∈ ℕ₀) → (2↑(𝑃 − 1)) ∈ ℕ)
22	8, 20, 21	sylancr 587	. . 3 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (2↑(𝑃 − 1)) ∈ ℕ)
23		prmnn 16561	. . . 4 ⊢ (((2↑𝑃) − 1) ∈ ℙ → ((2↑𝑃) − 1) ∈ ℕ)
24	23	adantl 482	. . 3 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ((2↑𝑃) − 1) ∈ ℕ)
25	22	nnzd 12535	. . . . 5 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (2↑(𝑃 − 1)) ∈ ℤ)
26		prmz 16562	. . . . . 6 ⊢ (((2↑𝑃) − 1) ∈ ℙ → ((2↑𝑃) − 1) ∈ ℤ)
27	26	adantl 482	. . . . 5 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ((2↑𝑃) − 1) ∈ ℤ)
28	25, 27	gcdcomd 16405	. . . 4 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ((2↑(𝑃 − 1)) gcd ((2↑𝑃) − 1)) = (((2↑𝑃) − 1) gcd (2↑(𝑃 − 1))))
29		iddvds 16163	. . . . . . . 8 ⊢ (((2↑𝑃) − 1) ∈ ℤ → ((2↑𝑃) − 1) ∥ ((2↑𝑃) − 1))
30	27, 29	syl 17	. . . . . . 7 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ((2↑𝑃) − 1) ∥ ((2↑𝑃) − 1))
31		prmuz2 16583	. . . . . . . . . 10 ⊢ (((2↑𝑃) − 1) ∈ ℙ → ((2↑𝑃) − 1) ∈ (ℤ_≥‘2))
32	31	adantl 482	. . . . . . . . 9 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ((2↑𝑃) − 1) ∈ (ℤ_≥‘2))
33		eluz2gt1 12854	. . . . . . . . 9 ⊢ (((2↑𝑃) − 1) ∈ (ℤ_≥‘2) → 1 < ((2↑𝑃) − 1))
34	32, 33	syl 17	. . . . . . . 8 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → 1 < ((2↑𝑃) − 1))
35		ndvdsp1 16304	. . . . . . . 8 ⊢ ((((2↑𝑃) − 1) ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℕ ∧ 1 < ((2↑𝑃) − 1)) → (((2↑𝑃) − 1) ∥ ((2↑𝑃) − 1) → ¬ ((2↑𝑃) − 1) ∥ (((2↑𝑃) − 1) + 1)))
36	27, 24, 34, 35	syl3anc 1371	. . . . . . 7 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (((2↑𝑃) − 1) ∥ ((2↑𝑃) − 1) → ¬ ((2↑𝑃) − 1) ∥ (((2↑𝑃) − 1) + 1)))
37	30, 36	mpd 15	. . . . . 6 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ¬ ((2↑𝑃) − 1) ∥ (((2↑𝑃) − 1) + 1))
38		2z 12544	. . . . . . . . 9 ⊢ 2 ∈ ℤ
39	38	a1i 11	. . . . . . . 8 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → 2 ∈ ℤ)
40		dvdsmultr1 16189	. . . . . . . 8 ⊢ ((((2↑𝑃) − 1) ∈ ℤ ∧ (2↑(𝑃 − 1)) ∈ ℤ ∧ 2 ∈ ℤ) → (((2↑𝑃) − 1) ∥ (2↑(𝑃 − 1)) → ((2↑𝑃) − 1) ∥ ((2↑(𝑃 − 1)) · 2)))
41	27, 25, 39, 40	syl3anc 1371	. . . . . . 7 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (((2↑𝑃) − 1) ∥ (2↑(𝑃 − 1)) → ((2↑𝑃) − 1) ∥ ((2↑(𝑃 − 1)) · 2)))
42		2cn 12237	. . . . . . . . . 10 ⊢ 2 ∈ ℂ
43		expm1t 14006	. . . . . . . . . 10 ⊢ ((2 ∈ ℂ ∧ 𝑃 ∈ ℕ) → (2↑𝑃) = ((2↑(𝑃 − 1)) · 2))
44	42, 3, 43	sylancr 587	. . . . . . . . 9 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (2↑𝑃) = ((2↑(𝑃 − 1)) · 2))
45	15, 44	eqtr2d 2772	. . . . . . . 8 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ((2↑(𝑃 − 1)) · 2) = (((2↑𝑃) − 1) + 1))
46	45	breq2d 5122	. . . . . . 7 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (((2↑𝑃) − 1) ∥ ((2↑(𝑃 − 1)) · 2) ↔ ((2↑𝑃) − 1) ∥ (((2↑𝑃) − 1) + 1)))
47	41, 46	sylibd 238	. . . . . 6 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (((2↑𝑃) − 1) ∥ (2↑(𝑃 − 1)) → ((2↑𝑃) − 1) ∥ (((2↑𝑃) − 1) + 1)))
48	37, 47	mtod 197	. . . . 5 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ¬ ((2↑𝑃) − 1) ∥ (2↑(𝑃 − 1)))
49		simpr 485	. . . . . 6 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ((2↑𝑃) − 1) ∈ ℙ)
50		coprm 16598	. . . . . 6 ⊢ ((((2↑𝑃) − 1) ∈ ℙ ∧ (2↑(𝑃 − 1)) ∈ ℤ) → (¬ ((2↑𝑃) − 1) ∥ (2↑(𝑃 − 1)) ↔ (((2↑𝑃) − 1) gcd (2↑(𝑃 − 1))) = 1))
51	49, 25, 50	syl2anc 584	. . . . 5 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (¬ ((2↑𝑃) − 1) ∥ (2↑(𝑃 − 1)) ↔ (((2↑𝑃) − 1) gcd (2↑(𝑃 − 1))) = 1))
52	48, 51	mpbid 231	. . . 4 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (((2↑𝑃) − 1) gcd (2↑(𝑃 − 1))) = 1)
53	28, 52	eqtrd 2771	. . 3 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ((2↑(𝑃 − 1)) gcd ((2↑𝑃) − 1)) = 1)
54		sgmmul 26586	. . 3 ⊢ ((1 ∈ ℂ ∧ ((2↑(𝑃 − 1)) ∈ ℕ ∧ ((2↑𝑃) − 1) ∈ ℕ ∧ ((2↑(𝑃 − 1)) gcd ((2↑𝑃) − 1)) = 1)) → (1 σ ((2↑(𝑃 − 1)) · ((2↑𝑃) − 1))) = ((1 σ (2↑(𝑃 − 1))) · (1 σ ((2↑𝑃) − 1))))
55	18, 22, 24, 53, 54	syl13anc 1372	. 2 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (1 σ ((2↑(𝑃 − 1)) · ((2↑𝑃) − 1))) = ((1 σ (2↑(𝑃 − 1))) · (1 σ ((2↑𝑃) − 1))))
56		subcl 11409	. . . 4 ⊢ (((2↑𝑃) ∈ ℂ ∧ 1 ∈ ℂ) → ((2↑𝑃) − 1) ∈ ℂ)
57	12, 13, 56	sylancl 586	. . 3 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ((2↑𝑃) − 1) ∈ ℂ)
58	12, 57	mulcomd 11185	. 2 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → ((2↑𝑃) · ((2↑𝑃) − 1)) = (((2↑𝑃) − 1) · (2↑𝑃)))
59	17, 55, 58	3eqtr4d 2781	1 ⊢ ((𝑃 ∈ ℤ ∧ ((2↑𝑃) − 1) ∈ ℙ) → (1 σ ((2↑(𝑃 − 1)) · ((2↑𝑃) − 1))) = ((2↑𝑃) · ((2↑𝑃) − 1)))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 396 = wceq 1541 ∈ wcel 2106 class class class wbr 5110 ‘cfv 6501 (class class class)co 7362 ℂcc 11058 1c1 11061 + caddc 11063 · cmul 11065 < clt 11198 − cmin 11394 ℕcn 12162 2c2 12217 ℕ₀cn0 12422 ℤcz 12508 ℤ_≥cuz 12772 ↑cexp 13977 ∥ cdvds 16147 gcd cgcd 16385 ℙcprime 16558 σ csgm 26482

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-rep 5247 ax-sep 5261 ax-nul 5268 ax-pow 5325 ax-pr 5389 ax-un 7677 ax-inf2 9586 ax-cnex 11116 ax-resscn 11117 ax-1cn 11118 ax-icn 11119 ax-addcl 11120 ax-addrcl 11121 ax-mulcl 11122 ax-mulrcl 11123 ax-mulcom 11124 ax-addass 11125 ax-mulass 11126 ax-distr 11127 ax-i2m1 11128 ax-1ne0 11129 ax-1rid 11130 ax-rnegex 11131 ax-rrecex 11132 ax-cnre 11133 ax-pre-lttri 11134 ax-pre-lttrn 11135 ax-pre-ltadd 11136 ax-pre-mulgt0 11137 ax-pre-sup 11138 ax-addf 11139 ax-mulf 11140

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-rmo 3351 df-reu 3352 df-rab 3406 df-v 3448 df-sbc 3743 df-csb 3859 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3932 df-nul 4288 df-if 4492 df-pw 4567 df-sn 4592 df-pr 4594 df-tp 4596 df-op 4598 df-uni 4871 df-int 4913 df-iun 4961 df-iin 4962 df-br 5111 df-opab 5173 df-mpt 5194 df-tr 5228 df-id 5536 df-eprel 5542 df-po 5550 df-so 5551 df-fr 5593 df-se 5594 df-we 5595 df-xp 5644 df-rel 5645 df-cnv 5646 df-co 5647 df-dm 5648 df-rn 5649 df-res 5650 df-ima 5651 df-pred 6258 df-ord 6325 df-on 6326 df-lim 6327 df-suc 6328 df-iota 6453 df-fun 6503 df-fn 6504 df-f 6505 df-f1 6506 df-fo 6507 df-f1o 6508 df-fv 6509 df-isom 6510 df-riota 7318 df-ov 7365 df-oprab 7366 df-mpo 7367 df-of 7622 df-om 7808 df-1st 7926 df-2nd 7927 df-supp 8098 df-frecs 8217 df-wrecs 8248 df-recs 8322 df-rdg 8361 df-1o 8417 df-2o 8418 df-er 8655 df-map 8774 df-pm 8775 df-ixp 8843 df-en 8891 df-dom 8892 df-sdom 8893 df-fin 8894 df-fsupp 9313 df-fi 9356 df-sup 9387 df-inf 9388 df-oi 9455 df-card 9884 df-pnf 11200 df-mnf 11201 df-xr 11202 df-ltxr 11203 df-le 11204 df-sub 11396 df-neg 11397 df-div 11822 df-nn 12163 df-2 12225 df-3 12226 df-4 12227 df-5 12228 df-6 12229 df-7 12230 df-8 12231 df-9 12232 df-n0 12423 df-z 12509 df-dec 12628 df-uz 12773 df-q 12883 df-rp 12925 df-xneg 13042 df-xadd 13043 df-xmul 13044 df-ioo 13278 df-ioc 13279 df-ico 13280 df-icc 13281 df-fz 13435 df-fzo 13578 df-fl 13707 df-mod 13785 df-seq 13917 df-exp 13978 df-fac 14184 df-bc 14213 df-hash 14241 df-shft 14964 df-cj 14996 df-re 14997 df-im 14998 df-sqrt 15132 df-abs 15133 df-limsup 15365 df-clim 15382 df-rlim 15383 df-sum 15583 df-ef 15961 df-sin 15963 df-cos 15964 df-pi 15966 df-dvds 16148 df-gcd 16386 df-prm 16559 df-pc 16720 df-struct 17030 df-sets 17047 df-slot 17065 df-ndx 17077 df-base 17095 df-ress 17124 df-plusg 17160 df-mulr 17161 df-starv 17162 df-sca 17163 df-vsca 17164 df-ip 17165 df-tset 17166 df-ple 17167 df-ds 17169 df-unif 17170 df-hom 17171 df-cco 17172 df-rest 17318 df-topn 17319 df-0g 17337 df-gsum 17338 df-topgen 17339 df-pt 17340 df-prds 17343 df-xrs 17398 df-qtop 17403 df-imas 17404 df-xps 17406 df-mre 17480 df-mrc 17481 df-acs 17483 df-mgm 18511 df-sgrp 18560 df-mnd 18571 df-submnd 18616 df-mulg 18887 df-cntz 19111 df-cmn 19578 df-psmet 20825 df-xmet 20826 df-met 20827 df-bl 20828 df-mopn 20829 df-fbas 20830 df-fg 20831 df-cnfld 20834 df-top 22280 df-topon 22297 df-topsp 22319 df-bases 22333 df-cld 22407 df-ntr 22408 df-cls 22409 df-nei 22486 df-lp 22524 df-perf 22525 df-cn 22615 df-cnp 22616 df-haus 22703 df-tx 22950 df-hmeo 23143 df-fil 23234 df-fm 23326 df-flim 23327 df-flf 23328 df-xms 23710 df-ms 23711 df-tms 23712 df-cncf 24278 df-limc 25267 df-dv 25268 df-log 25949 df-cxp 25950 df-sgm 26488

This theorem is referenced by: perfect 26616 perfectALTV 46035

W3C validator