Theorem lgslem1 14854

Description: When a is coprime to the prime p, a ^ ( ( p - 1 ) / 2 ) is equivalent mod p to 1 or -u 1, and so adding 1 makes it equivalent to 0 or 2. (Contributed by Mario Carneiro, 4-Feb-2015.)

Assertion

Ref	Expression
lgslem1	|- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) e. { 0 , 2 } )

Proof of Theorem lgslem1

Step	Hyp	Ref	Expression
1		eldifi 3272	. . . . . . . . 9 |- ( P e. ( Prime \ { 2 } ) -> P e. Prime )
2	1	3ad2ant2 1021	. . . . . . . 8 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> P e. Prime )
3		prmnn 12141	. . . . . . . 8 |- ( P e. Prime -> P e. NN )
4	2, 3	syl 14	. . . . . . 7 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> P e. NN )
5		simp1 999	. . . . . . 7 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> A e. ZZ )
6		prmz 12142	. . . . . . . . . 10 |- ( P e. Prime -> P e. ZZ )
7	2, 6	syl 14	. . . . . . . . 9 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> P e. ZZ )
8	5, 7	gcdcomd 12006	. . . . . . . 8 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( A gcd P ) = ( P gcd A ) )
9		simp3 1001	. . . . . . . . 9 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> -. P || A )
10		coprm 12175	. . . . . . . . . 10 |- ( ( P e. Prime /\ A e. ZZ ) -> ( -. P || A <-> ( P gcd A ) = 1 ) )
11	2, 5, 10	syl2anc 411	. . . . . . . . 9 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( -. P || A <-> ( P gcd A ) = 1 ) )
12	9, 11	mpbid 147	. . . . . . . 8 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( P gcd A ) = 1 )
13	8, 12	eqtrd 2222	. . . . . . 7 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( A gcd P ) = 1 )
14		eulerth 12264	. . . . . . 7 |- ( ( P e. NN /\ A e. ZZ /\ ( A gcd P ) = 1 ) -> ( ( A ^ ( phi ` P ) ) mod P ) = ( 1 mod P ) )
15	4, 5, 13, 14	syl3anc 1249	. . . . . 6 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( A ^ ( phi ` P ) ) mod P ) = ( 1 mod P ) )
16		phiprm 12254	. . . . . . . . . 10 |- ( P e. Prime -> ( phi ` P ) = ( P - 1 ) )
17	2, 16	syl 14	. . . . . . . . 9 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( phi ` P ) = ( P - 1 ) )
18		nnm1nn0 9246	. . . . . . . . . 10 |- ( P e. NN -> ( P - 1 ) e. NN0 )
19	4, 18	syl 14	. . . . . . . . 9 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( P - 1 ) e. NN0 )
20	17, 19	eqeltrd 2266	. . . . . . . 8 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( phi ` P ) e. NN0 )
21		zexpcl 10565	. . . . . . . 8 |- ( ( A e. ZZ /\ ( phi ` P ) e. NN0 ) -> ( A ^ ( phi ` P ) ) e. ZZ )
22	5, 20, 21	syl2anc 411	. . . . . . 7 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( A ^ ( phi ` P ) ) e. ZZ )
23		1zzd 9309	. . . . . . 7 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> 1 e. ZZ )
24		moddvds 11837	. . . . . . 7 |- ( ( P e. NN /\ ( A ^ ( phi ` P ) ) e. ZZ /\ 1 e. ZZ ) -> ( ( ( A ^ ( phi ` P ) ) mod P ) = ( 1 mod P ) <-> P || ( ( A ^ ( phi ` P ) ) - 1 ) ) )
25	4, 22, 23, 24	syl3anc 1249	. . . . . 6 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( ( A ^ ( phi ` P ) ) mod P ) = ( 1 mod P ) <-> P || ( ( A ^ ( phi ` P ) ) - 1 ) ) )
26	15, 25	mpbid 147	. . . . 5 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> P || ( ( A ^ ( phi ` P ) ) - 1 ) )
27	19	nn0cnd 9260	. . . . . . . . . . . 12 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( P - 1 ) e. CC )
28		2cnd 9021	. . . . . . . . . . . 12 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> 2 e. CC )
29		2ap0 9041	. . . . . . . . . . . . 13 |- 2 # 0
30	29	a1i 9	. . . . . . . . . . . 12 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> 2 # 0 )
31	27, 28, 30	divcanap1d 8777	. . . . . . . . . . 11 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( ( P - 1 ) / 2 ) x. 2 ) = ( P - 1 ) )
32	17, 31	eqtr4d 2225	. . . . . . . . . 10 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( phi ` P ) = ( ( ( P - 1 ) / 2 ) x. 2 ) )
33	32	oveq2d 5911	. . . . . . . . 9 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( A ^ ( phi ` P ) ) = ( A ^ ( ( ( P - 1 ) / 2 ) x. 2 ) ) )
34	5	zcnd 9405	. . . . . . . . . 10 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> A e. CC )
35		2nn0 9222	. . . . . . . . . . 11 |- 2 e. NN0
36	35	a1i 9	. . . . . . . . . 10 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> 2 e. NN0 )
37		oddprm 12290	. . . . . . . . . . . 12 |- ( P e. ( Prime \ { 2 } ) -> ( ( P - 1 ) / 2 ) e. NN )
38	37	3ad2ant2 1021	. . . . . . . . . . 11 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( P - 1 ) / 2 ) e. NN )
39	38	nnnn0d 9258	. . . . . . . . . 10 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( P - 1 ) / 2 ) e. NN0 )
40	34, 36, 39	expmuld 10687	. . . . . . . . 9 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( A ^ ( ( ( P - 1 ) / 2 ) x. 2 ) ) = ( ( A ^ ( ( P - 1 ) / 2 ) ) ^ 2 ) )
41	33, 40	eqtrd 2222	. . . . . . . 8 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( A ^ ( phi ` P ) ) = ( ( A ^ ( ( P - 1 ) / 2 ) ) ^ 2 ) )
42	41	oveq1d 5910	. . . . . . 7 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( A ^ ( phi ` P ) ) - 1 ) = ( ( ( A ^ ( ( P - 1 ) / 2 ) ) ^ 2 ) - 1 ) )
43		sq1 10644	. . . . . . . 8 |- ( 1 ^ 2 ) = 1
44	43	oveq2i 5906	. . . . . . 7 |- ( ( ( A ^ ( ( P - 1 ) / 2 ) ) ^ 2 ) - ( 1 ^ 2 ) ) = ( ( ( A ^ ( ( P - 1 ) / 2 ) ) ^ 2 ) - 1 )
45	42, 44	eqtr4di 2240	. . . . . 6 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( A ^ ( phi ` P ) ) - 1 ) = ( ( ( A ^ ( ( P - 1 ) / 2 ) ) ^ 2 ) - ( 1 ^ 2 ) ) )
46		zexpcl 10565	. . . . . . . . 9 |- ( ( A e. ZZ /\ ( ( P - 1 ) / 2 ) e. NN0 ) -> ( A ^ ( ( P - 1 ) / 2 ) ) e. ZZ )
47	5, 39, 46	syl2anc 411	. . . . . . . 8 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( A ^ ( ( P - 1 ) / 2 ) ) e. ZZ )
48	47	zcnd 9405	. . . . . . 7 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( A ^ ( ( P - 1 ) / 2 ) ) e. CC )
49		ax-1cn 7933	. . . . . . 7 |- 1 e. CC
50		subsq 10657	. . . . . . 7 |- ( ( ( A ^ ( ( P - 1 ) / 2 ) ) e. CC /\ 1 e. CC ) -> ( ( ( A ^ ( ( P - 1 ) / 2 ) ) ^ 2 ) - ( 1 ^ 2 ) ) = ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) x. ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) ) )
51	48, 49, 50	sylancl 413	. . . . . 6 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( ( A ^ ( ( P - 1 ) / 2 ) ) ^ 2 ) - ( 1 ^ 2 ) ) = ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) x. ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) ) )
52	45, 51	eqtrd 2222	. . . . 5 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( A ^ ( phi ` P ) ) - 1 ) = ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) x. ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) ) )
53	26, 52	breqtrd 4044	. . . 4 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> P || ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) x. ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) ) )
54	47	peano2zd 9407	. . . . 5 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) e. ZZ )
55		peano2zm 9320	. . . . . 6 |- ( ( A ^ ( ( P - 1 ) / 2 ) ) e. ZZ -> ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) e. ZZ )
56	47, 55	syl 14	. . . . 5 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) e. ZZ )
57		euclemma 12177	. . . . 5 |- ( ( P e. Prime /\ ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) e. ZZ /\ ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) e. ZZ ) -> ( P || ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) x. ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) ) <-> ( P || ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) \/ P || ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) ) ) )
58	2, 54, 56, 57	syl3anc 1249	. . . 4 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( P || ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) x. ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) ) <-> ( P || ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) \/ P || ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) ) ) )
59	53, 58	mpbid 147	. . 3 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( P || ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) \/ P || ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) ) )
60		dvdsval3 11829	. . . . 5 |- ( ( P e. NN /\ ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) e. ZZ ) -> ( P || ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) <-> ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = 0 ) )
61	4, 54, 60	syl2anc 411	. . . 4 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( P || ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) <-> ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = 0 ) )
62		2z 9310	. . . . . . 7 |- 2 e. ZZ
63	62	a1i 9	. . . . . 6 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> 2 e. ZZ )
64		moddvds 11837	. . . . . 6 |- ( ( P e. NN /\ ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) e. ZZ /\ 2 e. ZZ ) -> ( ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = ( 2 mod P ) <-> P || ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) - 2 ) ) )
65	4, 54, 63, 64	syl3anc 1249	. . . . 5 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = ( 2 mod P ) <-> P || ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) - 2 ) ) )
66		zq 9655	. . . . . . . 8 |- ( 2 e. ZZ -> 2 e. QQ )
67	62, 66	mp1i 10	. . . . . . 7 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> 2 e. QQ )
68		zq 9655	. . . . . . . 8 |- ( P e. ZZ -> P e. QQ )
69	7, 68	syl 14	. . . . . . 7 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> P e. QQ )
70		0le2 9038	. . . . . . . 8 |- 0 <_ 2
71	70	a1i 9	. . . . . . 7 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> 0 <_ 2 )
72		eldifsni 3736	. . . . . . . . . 10 |- ( P e. ( Prime \ { 2 } ) -> P =/= 2 )
73	72	3ad2ant2 1021	. . . . . . . . 9 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> P =/= 2 )
74		zapne 9356	. . . . . . . . . 10 |- ( ( P e. ZZ /\ 2 e. ZZ ) -> ( P # 2 <-> P =/= 2 ) )
75	7, 62, 74	sylancl 413	. . . . . . . . 9 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( P # 2 <-> P =/= 2 ) )
76	73, 75	mpbird 167	. . . . . . . 8 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> P # 2 )
77		2re 9018	. . . . . . . . . 10 |- 2 e. RR
78	77	a1i 9	. . . . . . . . 9 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> 2 e. RR )
79	4	nnred 8961	. . . . . . . . 9 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> P e. RR )
80		prmuz2 12162	. . . . . . . . . . 11 |- ( P e. Prime -> P e. ( ZZ>= ` 2 ) )
81	2, 80	syl 14	. . . . . . . . . 10 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> P e. ( ZZ>= ` 2 ) )
82		eluzle 9569	. . . . . . . . . 10 |- ( P e. ( ZZ>= ` 2 ) -> 2 <_ P )
83	81, 82	syl 14	. . . . . . . . 9 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> 2 <_ P )
84	78, 79, 83	leltapd 8625	. . . . . . . 8 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( 2 < P <-> P # 2 ) )
85	76, 84	mpbird 167	. . . . . . 7 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> 2 < P )
86		modqid 10379	. . . . . . 7 |- ( ( ( 2 e. QQ /\ P e. QQ ) /\ ( 0 <_ 2 /\ 2 < P ) ) -> ( 2 mod P ) = 2 )
87	67, 69, 71, 85, 86	syl22anc 1250	. . . . . 6 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( 2 mod P ) = 2 )
88	87	eqeq2d 2201	. . . . 5 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = ( 2 mod P ) <-> ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = 2 ) )
89		df-2 9007	. . . . . . . 8 |- 2 = ( 1 + 1 )
90	89	oveq2i 5906	. . . . . . 7 |- ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) - 2 ) = ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) - ( 1 + 1 ) )
91	49	a1i 9	. . . . . . . 8 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> 1 e. CC )
92	48, 91, 91	pnpcan2d 8335	. . . . . . 7 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) - ( 1 + 1 ) ) = ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) )
93	90, 92	eqtrid 2234	. . . . . 6 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) - 2 ) = ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) )
94	93	breq2d 4030	. . . . 5 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( P || ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) - 2 ) <-> P || ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) ) )
95	65, 88, 94	3bitr3rd 219	. . . 4 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( P || ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) <-> ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = 2 ) )
96	61, 95	orbi12d 794	. . 3 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( P || ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) \/ P || ( ( A ^ ( ( P - 1 ) / 2 ) ) - 1 ) ) <-> ( ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = 0 \/ ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = 2 ) ) )
97	59, 96	mpbid 147	. 2 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = 0 \/ ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = 2 ) )
98	54, 4	zmodcld 10375	. . 3 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) e. NN0 )
99		elprg 3627	. . 3 |- ( ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) e. NN0 -> ( ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) e. { 0 , 2 } <-> ( ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = 0 \/ ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = 2 ) ) )
100	98, 99	syl 14	. 2 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) e. { 0 , 2 } <-> ( ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = 0 \/ ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) = 2 ) ) )
101	97, 100	mpbird 167	1 |- ( ( A e. ZZ /\ P e. ( Prime \ { 2 } ) /\ -. P || A ) -> ( ( ( A ^ ( ( P - 1 ) / 2 ) ) + 1 ) mod P ) e. { 0 , 2 } )

Syntax hints:   -. wn 3   -> wi 4   <-> wb 105   \/ wo 709   /\ w3a 980   = wceq 1364   e. wcel 2160   =/= wne 2360   \ cdif 3141   {csn 3607   {cpr 3608   class class class wbr 4018   ` cfv 5235  (class class class)co 5895   CCcc 7838   RRcr 7839   0cc0 7840   1c1 7841   + caddc 7843   x. cmul 7845   < clt 8021   <_ cle 8022   - cmin 8157   # cap 8567   / cdiv 8658   NNcn 8948   2c2 8999   NN0cn0 9205   ZZcz 9282   ZZ>=cuz 9557   QQcq 9648   mod cmo 10352   ^cexp 10549   || cdvds 11825   gcd cgcd 11974   Primecprime 12138   phicphi 12240

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 615  ax-in2 616  ax-io 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-13 2162  ax-14 2163  ax-ext 2171  ax-coll 4133  ax-sep 4136  ax-nul 4144  ax-pow 4192  ax-pr 4227  ax-un 4451  ax-setind 4554  ax-iinf 4605  ax-cnex 7931  ax-resscn 7932  ax-1cn 7933  ax-1re 7934  ax-icn 7935  ax-addcl 7936  ax-addrcl 7937  ax-mulcl 7938  ax-mulrcl 7939  ax-addcom 7940  ax-mulcom 7941  ax-addass 7942  ax-mulass 7943  ax-distr 7944  ax-i2m1 7945  ax-0lt1 7946  ax-1rid 7947  ax-0id 7948  ax-rnegex 7949  ax-precex 7950  ax-cnre 7951  ax-pre-ltirr 7952  ax-pre-ltwlin 7953  ax-pre-lttrn 7954  ax-pre-apti 7955  ax-pre-ltadd 7956  ax-pre-mulgt0 7957  ax-pre-mulext 7958  ax-arch 7959  ax-caucvg 7960

This theorem depends on definitions:  df-bi 117  df-stab 832  df-dc 836  df-3or 981  df-3an 982  df-tru 1367  df-fal 1370  df-xor 1387  df-nf 1472  df-sb 1774  df-eu 2041  df-mo 2042  df-clab 2176  df-cleq 2182  df-clel 2185  df-nfc 2321  df-ne 2361  df-nel 2456  df-ral 2473  df-rex 2474  df-reu 2475  df-rmo 2476  df-rab 2477  df-v 2754  df-sbc 2978  df-csb 3073  df-dif 3146  df-un 3148  df-in 3150  df-ss 3157  df-nul 3438  df-if 3550  df-pw 3592  df-sn 3613  df-pr 3614  df-op 3616  df-uni 3825  df-int 3860  df-iun 3903  df-br 4019  df-opab 4080  df-mpt 4081  df-tr 4117  df-id 4311  df-po 4314  df-iso 4315  df-iord 4384  df-on 4386  df-ilim 4387  df-suc 4389  df-iom 4608  df-xp 4650  df-rel 4651  df-cnv 4652  df-co 4653  df-dm 4654  df-rn 4655  df-res 4656  df-ima 4657  df-iota 5196  df-fun 5237  df-fn 5238  df-f 5239  df-f1 5240  df-fo 5241  df-f1o 5242  df-fv 5243  df-isom 5244  df-riota 5851  df-ov 5898  df-oprab 5899  df-mpo 5900  df-1st 6164  df-2nd 6165  df-recs 6329  df-irdg 6394  df-frec 6415  df-1o 6440  df-2o 6441  df-oadd 6444  df-er 6558  df-en 6766  df-dom 6767  df-fin 6768  df-sup 7012  df-pnf 8023  df-mnf 8024  df-xr 8025  df-ltxr 8026  df-le 8027  df-sub 8159  df-neg 8160  df-reap 8561  df-ap 8568  df-div 8659  df-inn 8949  df-2 9007  df-3 9008  df-4 9009  df-n0 9206  df-z 9283  df-uz 9558  df-q 9649  df-rp 9683  df-fz 10038  df-fzo 10172  df-fl 10300  df-mod 10353  df-seqfrec 10476  df-exp 10550  df-ihash 10787  df-cj 10882  df-re 10883  df-im 10884  df-rsqrt 11038  df-abs 11039  df-clim 11318  df-proddc 11590  df-dvds 11826  df-gcd 11975  df-prm 12139  df-phi 12242

This theorem is referenced by:  lgslem4  14857