Theorem gausslemma2dlem5 15182

Description: Lemma 5 for gausslemma2d 15185. (Contributed by AV, 9-Jul-2021.)

Hypotheses

Ref	Expression
gausslemma2d.p	|- ( ph -> P e. ( Prime \ { 2 } ) )
gausslemma2d.h	|- H = ( ( P - 1 ) / 2 )
gausslemma2d.r	|- R = ( x e. ( 1 ... H ) |-> if ( ( x x. 2 ) < ( P / 2 ) , ( x x. 2 ) , ( P - ( x x. 2 ) ) ) )
gausslemma2d.m	|- M = ( |_ ` ( P / 4 ) )
gausslemma2d.n	|- N = ( H - M )

Assertion

Ref	Expression
gausslemma2dlem5	|- ( ph -> ( prod_ k e. ( ( M + 1 ) ... H ) ( R ` k ) mod P ) = ( ( ( -u 1 ^ N ) x. prod_ k e. ( ( M + 1 ) ... H ) ( k x. 2 ) ) mod P ) )

Distinct variable groups:   x, H   x, P   ph, x   k, H   R, k   ph, k   x, M, k   P, k

Allowed substitution hints:   R( x)   N( x, k)

Proof of Theorem gausslemma2dlem5

Step	Hyp	Ref	Expression
1		gausslemma2d.p	. . 3 |- ( ph -> P e. ( Prime \ { 2 } ) )
2		gausslemma2d.h	. . 3 |- H = ( ( P - 1 ) / 2 )
3		gausslemma2d.r	. . 3 |- R = ( x e. ( 1 ... H ) |-> if ( ( x x. 2 ) < ( P / 2 ) , ( x x. 2 ) , ( P - ( x x. 2 ) ) ) )
4		gausslemma2d.m	. . 3 |- M = ( |_ ` ( P / 4 ) )
5	1, 2, 3, 4	gausslemma2dlem5a 15181	. 2 |- ( ph -> ( prod_ k e. ( ( M + 1 ) ... H ) ( R ` k ) mod P ) = ( prod_ k e. ( ( M + 1 ) ... H ) ( -u 1 x. ( k x. 2 ) ) mod P ) )
6	1	gausslemma2dlem0a 15165	. . . . . . . . . . 11 |- ( ph -> P e. NN )
7	6	nnzd 9438	. . . . . . . . . 10 |- ( ph -> P e. ZZ )
8		4nn 9145	. . . . . . . . . 10 |- 4 e. NN
9		znq 9689	. . . . . . . . . 10 |- ( ( P e. ZZ /\ 4 e. NN ) -> ( P / 4 ) e. QQ )
10	7, 8, 9	sylancl 413	. . . . . . . . 9 |- ( ph -> ( P / 4 ) e. QQ )
11	10	flqcld 10346	. . . . . . . 8 |- ( ph -> ( |_ ` ( P / 4 ) ) e. ZZ )
12	4, 11	eqeltrid 2280	. . . . . . 7 |- ( ph -> M e. ZZ )
13	12	peano2zd 9442	. . . . . 6 |- ( ph -> ( M + 1 ) e. ZZ )
14	1, 2	gausslemma2dlem0b 15166	. . . . . . 7 |- ( ph -> H e. NN )
15	14	nnzd 9438	. . . . . 6 |- ( ph -> H e. ZZ )
16	13, 15	fzfigd 10502	. . . . 5 |- ( ph -> ( ( M + 1 ) ... H ) e. Fin )
17		neg1cn 9087	. . . . . 6 |- -u 1 e. CC
18	17	a1i 9	. . . . 5 |- ( ( ph /\ k e. ( ( M + 1 ) ... H ) ) -> -u 1 e. CC )
19		elfzelz 10091	. . . . . . . 8 |- ( k e. ( ( M + 1 ) ... H ) -> k e. ZZ )
20		2z 9345	. . . . . . . . 9 |- 2 e. ZZ
21	20	a1i 9	. . . . . . . 8 |- ( k e. ( ( M + 1 ) ... H ) -> 2 e. ZZ )
22	19, 21	zmulcld 9445	. . . . . . 7 |- ( k e. ( ( M + 1 ) ... H ) -> ( k x. 2 ) e. ZZ )
23	22	zcnd 9440	. . . . . 6 |- ( k e. ( ( M + 1 ) ... H ) -> ( k x. 2 ) e. CC )
24	23	adantl 277	. . . . 5 |- ( ( ph /\ k e. ( ( M + 1 ) ... H ) ) -> ( k x. 2 ) e. CC )
25	16, 18, 24	fprodmul 11734	. . . 4 |- ( ph -> prod_ k e. ( ( M + 1 ) ... H ) ( -u 1 x. ( k x. 2 ) ) = ( prod_ k e. ( ( M + 1 ) ... H ) -u 1 x. prod_ k e. ( ( M + 1 ) ... H ) ( k x. 2 ) ) )
26		fprodconst 11763	. . . . . . 7 |- ( ( ( ( M + 1 ) ... H ) e. Fin /\ -u 1 e. CC ) -> prod_ k e. ( ( M + 1 ) ... H ) -u 1 = ( -u 1 ^ (♯ ` ( ( M + 1 ) ... H ) ) ) )
27	16, 17, 26	sylancl 413	. . . . . 6 |- ( ph -> prod_ k e. ( ( M + 1 ) ... H ) -u 1 = ( -u 1 ^ (♯ ` ( ( M + 1 ) ... H ) ) ) )
28		nnoddn2prm 12398	. . . . . . . . . . . 12 |- ( P e. ( Prime \ { 2 } ) -> ( P e. NN /\ -. 2 || P ) )
29		nnz 9336	. . . . . . . . . . . . . 14 |- ( P e. NN -> P e. ZZ )
30		oddm1d2 12033	. . . . . . . . . . . . . 14 |- ( P e. ZZ -> ( -. 2 || P <-> ( ( P - 1 ) / 2 ) e. ZZ ) )
31	29, 30	syl 14	. . . . . . . . . . . . 13 |- ( P e. NN -> ( -. 2 || P <-> ( ( P - 1 ) / 2 ) e. ZZ ) )
32	31	biimpa 296	. . . . . . . . . . . 12 |- ( ( P e. NN /\ -. 2 || P ) -> ( ( P - 1 ) / 2 ) e. ZZ )
33	1, 28, 32	3syl 17	. . . . . . . . . . 11 |- ( ph -> ( ( P - 1 ) / 2 ) e. ZZ )
34	2, 33	eqeltrid 2280	. . . . . . . . . 10 |- ( ph -> H e. ZZ )
35	1, 4, 2	gausslemma2dlem0f 15170	. . . . . . . . . 10 |- ( ph -> ( M + 1 ) <_ H )
36		eluz2 9598	. . . . . . . . . 10 |- ( H e. ( ZZ>= ` ( M + 1 ) ) <-> ( ( M + 1 ) e. ZZ /\ H e. ZZ /\ ( M + 1 ) <_ H ) )
37	13, 34, 35, 36	syl3anbrc 1183	. . . . . . . . 9 |- ( ph -> H e. ( ZZ>= ` ( M + 1 ) ) )
38		hashfz 10892	. . . . . . . . 9 |- ( H e. ( ZZ>= ` ( M + 1 ) ) -> (♯ ` ( ( M + 1 ) ... H ) ) = ( ( H - ( M + 1 ) ) + 1 ) )
39	37, 38	syl 14	. . . . . . . 8 |- ( ph -> (♯ ` ( ( M + 1 ) ... H ) ) = ( ( H - ( M + 1 ) ) + 1 ) )
40	34	zcnd 9440	. . . . . . . . . 10 |- ( ph -> H e. CC )
41	12	zcnd 9440	. . . . . . . . . 10 |- ( ph -> M e. CC )
42		1cnd 8035	. . . . . . . . . 10 |- ( ph -> 1 e. CC )
43	40, 41, 42	nppcan2d 8356	. . . . . . . . 9 |- ( ph -> ( ( H - ( M + 1 ) ) + 1 ) = ( H - M ) )
44		gausslemma2d.n	. . . . . . . . 9 |- N = ( H - M )
45	43, 44	eqtr4di 2244	. . . . . . . 8 |- ( ph -> ( ( H - ( M + 1 ) ) + 1 ) = N )
46	39, 45	eqtrd 2226	. . . . . . 7 |- ( ph -> (♯ ` ( ( M + 1 ) ... H ) ) = N )
47	46	oveq2d 5934	. . . . . 6 |- ( ph -> ( -u 1 ^ (♯ ` ( ( M + 1 ) ... H ) ) ) = ( -u 1 ^ N ) )
48	27, 47	eqtrd 2226	. . . . 5 |- ( ph -> prod_ k e. ( ( M + 1 ) ... H ) -u 1 = ( -u 1 ^ N ) )
49	48	oveq1d 5933	. . . 4 |- ( ph -> ( prod_ k e. ( ( M + 1 ) ... H ) -u 1 x. prod_ k e. ( ( M + 1 ) ... H ) ( k x. 2 ) ) = ( ( -u 1 ^ N ) x. prod_ k e. ( ( M + 1 ) ... H ) ( k x. 2 ) ) )
50	25, 49	eqtrd 2226	. . 3 |- ( ph -> prod_ k e. ( ( M + 1 ) ... H ) ( -u 1 x. ( k x. 2 ) ) = ( ( -u 1 ^ N ) x. prod_ k e. ( ( M + 1 ) ... H ) ( k x. 2 ) ) )
51	50	oveq1d 5933	. 2 |- ( ph -> ( prod_ k e. ( ( M + 1 ) ... H ) ( -u 1 x. ( k x. 2 ) ) mod P ) = ( ( ( -u 1 ^ N ) x. prod_ k e. ( ( M + 1 ) ... H ) ( k x. 2 ) ) mod P ) )
52	5, 51	eqtrd 2226	1 |- ( ph -> ( prod_ k e. ( ( M + 1 ) ... H ) ( R ` k ) mod P ) = ( ( ( -u 1 ^ N ) x. prod_ k e. ( ( M + 1 ) ... H ) ( k x. 2 ) ) mod P ) )

Syntax hints:   -. wn 3   -> wi 4   /\ wa 104   <-> wb 105   = wceq 1364   e. wcel 2164   \ cdif 3150   ifcif 3557   {csn 3618   class class class wbr 4029   |-> cmpt 4090   ` cfv 5254  (class class class)co 5918   Fincfn 6794   CCcc 7870   1c1 7873   + caddc 7875   x. cmul 7877   < clt 8054   <_ cle 8055   - cmin 8190   -ucneg 8191   / cdiv 8691   NNcn 8982   2c2 9033   4c4 9035   ZZcz 9317   ZZ>=cuz 9592   QQcq 9684   ...cfz 10074   |_cfl 10337   mod cmo 10393   ^cexp 10609  ♯chash 10846   prod_cprod 11693   || cdvds 11930   Primecprime 12245

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 2166  ax-14 2167  ax-ext 2175  ax-coll 4144  ax-sep 4147  ax-nul 4155  ax-pow 4203  ax-pr 4238  ax-un 4464  ax-setind 4569  ax-iinf 4620  ax-cnex 7963  ax-resscn 7964  ax-1cn 7965  ax-1re 7966  ax-icn 7967  ax-addcl 7968  ax-addrcl 7969  ax-mulcl 7970  ax-mulrcl 7971  ax-addcom 7972  ax-mulcom 7973  ax-addass 7974  ax-mulass 7975  ax-distr 7976  ax-i2m1 7977  ax-0lt1 7978  ax-1rid 7979  ax-0id 7980  ax-rnegex 7981  ax-precex 7982  ax-cnre 7983  ax-pre-ltirr 7984  ax-pre-ltwlin 7985  ax-pre-lttrn 7986  ax-pre-apti 7987  ax-pre-ltadd 7988  ax-pre-mulgt0 7989  ax-pre-mulext 7990  ax-arch 7991  ax-caucvg 7992

This theorem depends on definitions:  df-bi 117  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 2045  df-mo 2046  df-clab 2180  df-cleq 2186  df-clel 2189  df-nfc 2325  df-ne 2365  df-nel 2460  df-ral 2477  df-rex 2478  df-reu 2479  df-rmo 2480  df-rab 2481  df-v 2762  df-sbc 2986  df-csb 3081  df-dif 3155  df-un 3157  df-in 3159  df-ss 3166  df-nul 3447  df-if 3558  df-pw 3603  df-sn 3624  df-pr 3625  df-tp 3626  df-op 3627  df-uni 3836  df-int 3871  df-iun 3914  df-br 4030  df-opab 4091  df-mpt 4092  df-tr 4128  df-id 4324  df-po 4327  df-iso 4328  df-iord 4397  df-on 4399  df-ilim 4400  df-suc 4402  df-iom 4623  df-xp 4665  df-rel 4666  df-cnv 4667  df-co 4668  df-dm 4669  df-rn 4670  df-res 4671  df-ima 4672  df-iota 5215  df-fun 5256  df-fn 5257  df-f 5258  df-f1 5259  df-fo 5260  df-f1o 5261  df-fv 5262  df-isom 5263  df-riota 5873  df-ov 5921  df-oprab 5922  df-mpo 5923  df-1st 6193  df-2nd 6194  df-recs 6358  df-irdg 6423  df-frec 6444  df-1o 6469  df-2o 6470  df-oadd 6473  df-er 6587  df-en 6795  df-dom 6796  df-fin 6797  df-pnf 8056  df-mnf 8057  df-xr 8058  df-ltxr 8059  df-le 8060  df-sub 8192  df-neg 8193  df-reap 8594  df-ap 8601  df-div 8692  df-inn 8983  df-2 9041  df-3 9042  df-4 9043  df-5 9044  df-6 9045  df-n0 9241  df-z 9318  df-uz 9593  df-q 9685  df-rp 9720  df-fz 10075  df-fzo 10209  df-fl 10339  df-mod 10394  df-seqfrec 10519  df-exp 10610  df-ihash 10847  df-cj 10986  df-re 10987  df-im 10988  df-rsqrt 11142  df-abs 11143  df-clim 11422  df-proddc 11694  df-dvds 11931  df-prm 12246

This theorem is referenced by:  gausslemma2dlem6  15183