Theorem gausslemma2dlem2 15797

Description: Lemma 2 for gausslemma2d 15804. (Contributed by AV, 4-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 ) )

Assertion

Ref	Expression
gausslemma2dlem2	|- ( ph -> A. k e. ( 1 ... M ) ( R ` k ) = ( k x. 2 ) )

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

Allowed substitution hints:   P( k)   R( x)   M( k)

Proof of Theorem gausslemma2dlem2

Step	Hyp	Ref	Expression
1		gausslemma2d.r	. . 3 |- R = ( x e. ( 1 ... H ) |-> if ( ( x x. 2 ) < ( P / 2 ) , ( x x. 2 ) , ( P - ( x x. 2 ) ) ) )
2		oveq1 6025	. . . . . . 7 |- ( x = k -> ( x x. 2 ) = ( k x. 2 ) )
3	2	breq1d 4098	. . . . . 6 |- ( x = k -> ( ( x x. 2 ) < ( P / 2 ) <-> ( k x. 2 ) < ( P / 2 ) ) )
4	2	oveq2d 6034	. . . . . 6 |- ( x = k -> ( P - ( x x. 2 ) ) = ( P - ( k x. 2 ) ) )
5	3, 2, 4	ifbieq12d 3632	. . . . 5 |- ( x = k -> if ( ( x x. 2 ) < ( P / 2 ) , ( x x. 2 ) , ( P - ( x x. 2 ) ) ) = if ( ( k x. 2 ) < ( P / 2 ) , ( k x. 2 ) , ( P - ( k x. 2 ) ) ) )
6	5	adantl 277	. . . 4 |- ( ( ( ph /\ k e. ( 1 ... M ) ) /\ x = k ) -> if ( ( x x. 2 ) < ( P / 2 ) , ( x x. 2 ) , ( P - ( x x. 2 ) ) ) = if ( ( k x. 2 ) < ( P / 2 ) , ( k x. 2 ) , ( P - ( k x. 2 ) ) ) )
7		elfz1b 10325	. . . . . . . 8 |- ( k e. ( 1 ... M ) <-> ( k e. NN /\ M e. NN /\ k <_ M ) )
8		nnre 9150	. . . . . . . . . . . 12 |- ( k e. NN -> k e. RR )
9	8	adantr 276	. . . . . . . . . . 11 |- ( ( k e. NN /\ M e. NN ) -> k e. RR )
10		nnre 9150	. . . . . . . . . . . 12 |- ( M e. NN -> M e. RR )
11	10	adantl 277	. . . . . . . . . . 11 |- ( ( k e. NN /\ M e. NN ) -> M e. RR )
12		2re 9213	. . . . . . . . . . . . 13 |- 2 e. RR
13		2pos 9234	. . . . . . . . . . . . 13 |- 0 < 2
14	12, 13	pm3.2i 272	. . . . . . . . . . . 12 |- ( 2 e. RR /\ 0 < 2 )
15	14	a1i 9	. . . . . . . . . . 11 |- ( ( k e. NN /\ M e. NN ) -> ( 2 e. RR /\ 0 < 2 ) )
16		lemul1 8773	. . . . . . . . . . 11 |- ( ( k e. RR /\ M e. RR /\ ( 2 e. RR /\ 0 < 2 ) ) -> ( k <_ M <-> ( k x. 2 ) <_ ( M x. 2 ) ) )
17	9, 11, 15, 16	syl3anc 1273	. . . . . . . . . 10 |- ( ( k e. NN /\ M e. NN ) -> ( k <_ M <-> ( k x. 2 ) <_ ( M x. 2 ) ) )
18		gausslemma2d.p	. . . . . . . . . . . . . . 15 |- ( ph -> P e. ( Prime \ { 2 } ) )
19		gausslemma2d.m	. . . . . . . . . . . . . . 15 |- M = ( |_ ` ( P / 4 ) )
20	18, 19	gausslemma2dlem0e 15788	. . . . . . . . . . . . . 14 |- ( ph -> ( M x. 2 ) < ( P / 2 ) )
21	20	adantl 277	. . . . . . . . . . . . 13 |- ( ( ( k e. NN /\ M e. NN ) /\ ph ) -> ( M x. 2 ) < ( P / 2 ) )
22	12	a1i 9	. . . . . . . . . . . . . . . 16 |- ( k e. NN -> 2 e. RR )
23	8, 22	remulcld 8210	. . . . . . . . . . . . . . 15 |- ( k e. NN -> ( k x. 2 ) e. RR )
24	23	adantr 276	. . . . . . . . . . . . . 14 |- ( ( k e. NN /\ M e. NN ) -> ( k x. 2 ) e. RR )
25	12	a1i 9	. . . . . . . . . . . . . . . 16 |- ( M e. NN -> 2 e. RR )
26	10, 25	remulcld 8210	. . . . . . . . . . . . . . 15 |- ( M e. NN -> ( M x. 2 ) e. RR )
27	26	adantl 277	. . . . . . . . . . . . . 14 |- ( ( k e. NN /\ M e. NN ) -> ( M x. 2 ) e. RR )
28	18	gausslemma2dlem0a 15784	. . . . . . . . . . . . . . . 16 |- ( ph -> P e. NN )
29	28	nnred 9156	. . . . . . . . . . . . . . 15 |- ( ph -> P e. RR )
30	29	rehalfcld 9391	. . . . . . . . . . . . . 14 |- ( ph -> ( P / 2 ) e. RR )
31		lelttr 8268	. . . . . . . . . . . . . 14 |- ( ( ( k x. 2 ) e. RR /\ ( M x. 2 ) e. RR /\ ( P / 2 ) e. RR ) -> ( ( ( k x. 2 ) <_ ( M x. 2 ) /\ ( M x. 2 ) < ( P / 2 ) ) -> ( k x. 2 ) < ( P / 2 ) ) )
32	24, 27, 30, 31	syl2an3an 1334	. . . . . . . . . . . . 13 |- ( ( ( k e. NN /\ M e. NN ) /\ ph ) -> ( ( ( k x. 2 ) <_ ( M x. 2 ) /\ ( M x. 2 ) < ( P / 2 ) ) -> ( k x. 2 ) < ( P / 2 ) ) )
33	21, 32	mpan2d 428	. . . . . . . . . . . 12 |- ( ( ( k e. NN /\ M e. NN ) /\ ph ) -> ( ( k x. 2 ) <_ ( M x. 2 ) -> ( k x. 2 ) < ( P / 2 ) ) )
34	33	ex 115	. . . . . . . . . . 11 |- ( ( k e. NN /\ M e. NN ) -> ( ph -> ( ( k x. 2 ) <_ ( M x. 2 ) -> ( k x. 2 ) < ( P / 2 ) ) ) )
35	34	com23 78	. . . . . . . . . 10 |- ( ( k e. NN /\ M e. NN ) -> ( ( k x. 2 ) <_ ( M x. 2 ) -> ( ph -> ( k x. 2 ) < ( P / 2 ) ) ) )
36	17, 35	sylbid 150	. . . . . . . . 9 |- ( ( k e. NN /\ M e. NN ) -> ( k <_ M -> ( ph -> ( k x. 2 ) < ( P / 2 ) ) ) )
37	36	3impia 1226	. . . . . . . 8 |- ( ( k e. NN /\ M e. NN /\ k <_ M ) -> ( ph -> ( k x. 2 ) < ( P / 2 ) ) )
38	7, 37	sylbi 121	. . . . . . 7 |- ( k e. ( 1 ... M ) -> ( ph -> ( k x. 2 ) < ( P / 2 ) ) )
39	38	impcom 125	. . . . . 6 |- ( ( ph /\ k e. ( 1 ... M ) ) -> ( k x. 2 ) < ( P / 2 ) )
40	39	adantr 276	. . . . 5 |- ( ( ( ph /\ k e. ( 1 ... M ) ) /\ x = k ) -> ( k x. 2 ) < ( P / 2 ) )
41	40	iftrued 3612	. . . 4 |- ( ( ( ph /\ k e. ( 1 ... M ) ) /\ x = k ) -> if ( ( k x. 2 ) < ( P / 2 ) , ( k x. 2 ) , ( P - ( k x. 2 ) ) ) = ( k x. 2 ) )
42	6, 41	eqtrd 2264	. . 3 |- ( ( ( ph /\ k e. ( 1 ... M ) ) /\ x = k ) -> if ( ( x x. 2 ) < ( P / 2 ) , ( x x. 2 ) , ( P - ( x x. 2 ) ) ) = ( k x. 2 ) )
43	18, 19	gausslemma2dlem0d 15787	. . . . . . 7 |- ( ph -> M e. NN0 )
44	43	nn0zd 9600	. . . . . 6 |- ( ph -> M e. ZZ )
45		gausslemma2d.h	. . . . . . . 8 |- H = ( ( P - 1 ) / 2 )
46	18, 45	gausslemma2dlem0b 15785	. . . . . . 7 |- ( ph -> H e. NN )
47	46	nnzd 9601	. . . . . 6 |- ( ph -> H e. ZZ )
48	18, 19, 45	gausslemma2dlem0g 15790	. . . . . 6 |- ( ph -> M <_ H )
49		eluz2 9761	. . . . . 6 |- ( H e. ( ZZ>= ` M ) <-> ( M e. ZZ /\ H e. ZZ /\ M <_ H ) )
50	44, 47, 48, 49	syl3anbrc 1207	. . . . 5 |- ( ph -> H e. ( ZZ>= ` M ) )
51		fzss2 10299	. . . . 5 |- ( H e. ( ZZ>= ` M ) -> ( 1 ... M ) C_ ( 1 ... H ) )
52	50, 51	syl 14	. . . 4 |- ( ph -> ( 1 ... M ) C_ ( 1 ... H ) )
53	52	sselda 3227	. . 3 |- ( ( ph /\ k e. ( 1 ... M ) ) -> k e. ( 1 ... H ) )
54	53	elfzelzd 10261	. . . 4 |- ( ( ph /\ k e. ( 1 ... M ) ) -> k e. ZZ )
55		2z 9507	. . . . 5 |- 2 e. ZZ
56	55	a1i 9	. . . 4 |- ( ( ph /\ k e. ( 1 ... M ) ) -> 2 e. ZZ )
57	54, 56	zmulcld 9608	. . 3 |- ( ( ph /\ k e. ( 1 ... M ) ) -> ( k x. 2 ) e. ZZ )
58	1, 42, 53, 57	fvmptd2 5728	. 2 |- ( ( ph /\ k e. ( 1 ... M ) ) -> ( R ` k ) = ( k x. 2 ) )
59	58	ralrimiva 2605	1 |- ( ph -> A. k e. ( 1 ... M ) ( R ` k ) = ( k x. 2 ) )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   /\ w3a 1004   = wceq 1397   e. wcel 2202   A.wral 2510   \ cdif 3197   C_ wss 3200   ifcif 3605   {csn 3669   class class class wbr 4088   |-> cmpt 4150   ` cfv 5326  (class class class)co 6018   RRcr 8031   0cc0 8032   1c1 8033   x. cmul 8037   < clt 8214   <_ cle 8215   - cmin 8350   / cdiv 8852   NNcn 9143   2c2 9194   4c4 9196   ZZcz 9479   ZZ>=cuz 9755   ...cfz 10243   |_cfl 10529   Primecprime 12684

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 619  ax-in2 620  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-coll 4204  ax-sep 4207  ax-nul 4215  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-setind 4635  ax-iinf 4686  ax-cnex 8123  ax-resscn 8124  ax-1cn 8125  ax-1re 8126  ax-icn 8127  ax-addcl 8128  ax-addrcl 8129  ax-mulcl 8130  ax-mulrcl 8131  ax-addcom 8132  ax-mulcom 8133  ax-addass 8134  ax-mulass 8135  ax-distr 8136  ax-i2m1 8137  ax-0lt1 8138  ax-1rid 8139  ax-0id 8140  ax-rnegex 8141  ax-precex 8142  ax-cnre 8143  ax-pre-ltirr 8144  ax-pre-ltwlin 8145  ax-pre-lttrn 8146  ax-pre-apti 8147  ax-pre-ltadd 8148  ax-pre-mulgt0 8149  ax-pre-mulext 8150  ax-arch 8151  ax-caucvg 8152

This theorem depends on definitions:  df-bi 117  df-dc 842  df-3or 1005  df-3an 1006  df-tru 1400  df-fal 1403  df-xor 1420  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ne 2403  df-nel 2498  df-ral 2515  df-rex 2516  df-reu 2517  df-rmo 2518  df-rab 2519  df-v 2804  df-sbc 3032  df-csb 3128  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-nul 3495  df-if 3606  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-int 3929  df-iun 3972  df-br 4089  df-opab 4151  df-mpt 4152  df-tr 4188  df-id 4390  df-po 4393  df-iso 4394  df-iord 4463  df-on 4465  df-ilim 4466  df-suc 4468  df-iom 4689  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-rn 4736  df-res 4737  df-ima 4738  df-iota 5286  df-fun 5328  df-fn 5329  df-f 5330  df-f1 5331  df-fo 5332  df-f1o 5333  df-fv 5334  df-riota 5971  df-ov 6021  df-oprab 6022  df-mpo 6023  df-1st 6303  df-2nd 6304  df-recs 6471  df-frec 6557  df-1o 6582  df-2o 6583  df-er 6702  df-en 6910  df-pnf 8216  df-mnf 8217  df-xr 8218  df-ltxr 8219  df-le 8220  df-sub 8352  df-neg 8353  df-reap 8755  df-ap 8762  df-div 8853  df-inn 9144  df-2 9202  df-3 9203  df-4 9204  df-n0 9403  df-z 9480  df-uz 9756  df-q 9854  df-rp 9889  df-fz 10244  df-fl 10531  df-seqfrec 10711  df-exp 10802  df-cj 11407  df-re 11408  df-im 11409  df-rsqrt 11563  df-abs 11564  df-dvds 12354  df-prm 12685

This theorem is referenced by:  gausslemma2dlem6  15802