MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  2sqlem9 Structured version   Unicode version

Theorem 2sqlem9 23513
Description: Lemma for 2sq 23516. (Contributed by Mario Carneiro, 19-Jun-2015.)
Hypotheses
Ref Expression
2sq.1  |-  S  =  ran  ( w  e.  ZZ[_i]  |->  ( ( abs `  w
) ^ 2 ) )
2sqlem7.2  |-  Y  =  { z  |  E. x  e.  ZZ  E. y  e.  ZZ  ( ( x  gcd  y )  =  1  /\  z  =  ( ( x ^
2 )  +  ( y ^ 2 ) ) ) }
2sqlem9.5  |-  ( ph  ->  A. b  e.  ( 1 ... ( M  -  1 ) ) A. a  e.  Y  ( b  ||  a  ->  b  e.  S ) )
2sqlem9.7  |-  ( ph  ->  M  ||  N )
2sqlem9.6  |-  ( ph  ->  M  e.  NN )
2sqlem9.4  |-  ( ph  ->  N  e.  Y )
Assertion
Ref Expression
2sqlem9  |-  ( ph  ->  M  e.  S )
Distinct variable groups:    a, b, w, x, y, z    ph, x, y    M, a, b, x, y, z    S, a, b, x, y, z   
x, N, y, z    Y, a, b, x, y
Allowed substitution hints:    ph( z, w, a, b)    S( w)    M( w)    N( w, a, b)    Y( z, w)

Proof of Theorem 2sqlem9
Dummy variables  u  v are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 2sqlem9.4 . . 3  |-  ( ph  ->  N  e.  Y )
2 eqeq1 2445 . . . . . . . 8  |-  ( z  =  N  ->  (
z  =  ( ( x ^ 2 )  +  ( y ^
2 ) )  <->  N  =  ( ( x ^
2 )  +  ( y ^ 2 ) ) ) )
32anbi2d 703 . . . . . . 7  |-  ( z  =  N  ->  (
( ( x  gcd  y )  =  1  /\  z  =  ( ( x ^ 2 )  +  ( y ^ 2 ) ) )  <->  ( ( x  gcd  y )  =  1  /\  N  =  ( ( x ^
2 )  +  ( y ^ 2 ) ) ) ) )
432rexbidv 2959 . . . . . 6  |-  ( z  =  N  ->  ( E. x  e.  ZZ  E. y  e.  ZZ  (
( x  gcd  y
)  =  1  /\  z  =  ( ( x ^ 2 )  +  ( y ^
2 ) ) )  <->  E. x  e.  ZZ  E. y  e.  ZZ  (
( x  gcd  y
)  =  1  /\  N  =  ( ( x ^ 2 )  +  ( y ^
2 ) ) ) ) )
5 oveq1 6284 . . . . . . . . 9  |-  ( x  =  u  ->  (
x  gcd  y )  =  ( u  gcd  y ) )
65eqeq1d 2443 . . . . . . . 8  |-  ( x  =  u  ->  (
( x  gcd  y
)  =  1  <->  (
u  gcd  y )  =  1 ) )
7 oveq1 6284 . . . . . . . . . 10  |-  ( x  =  u  ->  (
x ^ 2 )  =  ( u ^
2 ) )
87oveq1d 6292 . . . . . . . . 9  |-  ( x  =  u  ->  (
( x ^ 2 )  +  ( y ^ 2 ) )  =  ( ( u ^ 2 )  +  ( y ^ 2 ) ) )
98eqeq2d 2455 . . . . . . . 8  |-  ( x  =  u  ->  ( N  =  ( (
x ^ 2 )  +  ( y ^
2 ) )  <->  N  =  ( ( u ^
2 )  +  ( y ^ 2 ) ) ) )
106, 9anbi12d 710 . . . . . . 7  |-  ( x  =  u  ->  (
( ( x  gcd  y )  =  1  /\  N  =  ( ( x ^ 2 )  +  ( y ^ 2 ) ) )  <->  ( ( u  gcd  y )  =  1  /\  N  =  ( ( u ^
2 )  +  ( y ^ 2 ) ) ) ) )
11 oveq2 6285 . . . . . . . . 9  |-  ( y  =  v  ->  (
u  gcd  y )  =  ( u  gcd  v ) )
1211eqeq1d 2443 . . . . . . . 8  |-  ( y  =  v  ->  (
( u  gcd  y
)  =  1  <->  (
u  gcd  v )  =  1 ) )
13 oveq1 6284 . . . . . . . . . 10  |-  ( y  =  v  ->  (
y ^ 2 )  =  ( v ^
2 ) )
1413oveq2d 6293 . . . . . . . . 9  |-  ( y  =  v  ->  (
( u ^ 2 )  +  ( y ^ 2 ) )  =  ( ( u ^ 2 )  +  ( v ^ 2 ) ) )
1514eqeq2d 2455 . . . . . . . 8  |-  ( y  =  v  ->  ( N  =  ( (
u ^ 2 )  +  ( y ^
2 ) )  <->  N  =  ( ( u ^
2 )  +  ( v ^ 2 ) ) ) )
1612, 15anbi12d 710 . . . . . . 7  |-  ( y  =  v  ->  (
( ( u  gcd  y )  =  1  /\  N  =  ( ( u ^ 2 )  +  ( y ^ 2 ) ) )  <->  ( ( u  gcd  v )  =  1  /\  N  =  ( ( u ^
2 )  +  ( v ^ 2 ) ) ) ) )
1710, 16cbvrex2v 3077 . . . . . 6  |-  ( E. x  e.  ZZ  E. y  e.  ZZ  (
( x  gcd  y
)  =  1  /\  N  =  ( ( x ^ 2 )  +  ( y ^
2 ) ) )  <->  E. u  e.  ZZ  E. v  e.  ZZ  (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) ) )
184, 17syl6bb 261 . . . . 5  |-  ( z  =  N  ->  ( E. x  e.  ZZ  E. y  e.  ZZ  (
( x  gcd  y
)  =  1  /\  z  =  ( ( x ^ 2 )  +  ( y ^
2 ) ) )  <->  E. u  e.  ZZ  E. v  e.  ZZ  (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) ) ) )
19 2sqlem7.2 . . . . 5  |-  Y  =  { z  |  E. x  e.  ZZ  E. y  e.  ZZ  ( ( x  gcd  y )  =  1  /\  z  =  ( ( x ^
2 )  +  ( y ^ 2 ) ) ) }
2018, 19elab2g 3232 . . . 4  |-  ( N  e.  Y  ->  ( N  e.  Y  <->  E. u  e.  ZZ  E. v  e.  ZZ  ( ( u  gcd  v )  =  1  /\  N  =  ( ( u ^
2 )  +  ( v ^ 2 ) ) ) ) )
2120ibi 241 . . 3  |-  ( N  e.  Y  ->  E. u  e.  ZZ  E. v  e.  ZZ  ( ( u  gcd  v )  =  1  /\  N  =  ( ( u ^
2 )  +  ( v ^ 2 ) ) ) )
221, 21syl 16 . 2  |-  ( ph  ->  E. u  e.  ZZ  E. v  e.  ZZ  (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) ) )
23 simpr 461 . . . . . 6  |-  ( ( ( ( ph  /\  ( u  e.  ZZ  /\  v  e.  ZZ ) )  /\  ( ( u  gcd  v )  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^ 2 ) ) ) )  /\  M  =  1 )  ->  M  = 
1 )
24 1z 10895 . . . . . . . . 9  |-  1  e.  ZZ
25 zgz 14323 . . . . . . . . 9  |-  ( 1  e.  ZZ  ->  1  e.  ZZ[_i]
)
2624, 25ax-mp 5 . . . . . . . 8  |-  1  e.  ZZ[_i]
27 sq1 12236 . . . . . . . . 9  |-  ( 1 ^ 2 )  =  1
2827eqcomi 2454 . . . . . . . 8  |-  1  =  ( 1 ^ 2 )
29 fveq2 5852 . . . . . . . . . . . 12  |-  ( x  =  1  ->  ( abs `  x )  =  ( abs `  1
) )
30 abs1 13104 . . . . . . . . . . . 12  |-  ( abs `  1 )  =  1
3129, 30syl6eq 2498 . . . . . . . . . . 11  |-  ( x  =  1  ->  ( abs `  x )  =  1 )
3231oveq1d 6292 . . . . . . . . . 10  |-  ( x  =  1  ->  (
( abs `  x
) ^ 2 )  =  ( 1 ^ 2 ) )
3332eqeq2d 2455 . . . . . . . . 9  |-  ( x  =  1  ->  (
1  =  ( ( abs `  x ) ^ 2 )  <->  1  =  ( 1 ^ 2 ) ) )
3433rspcev 3194 . . . . . . . 8  |-  ( ( 1  e.  ZZ[_i]  /\  1  =  ( 1 ^ 2 ) )  ->  E. x  e.  ZZ[_i]  1  =  ( ( abs `  x ) ^ 2 ) )
3526, 28, 34mp2an 672 . . . . . . 7  |-  E. x  e.  ZZ[_i] 
1  =  ( ( abs `  x ) ^ 2 )
36 2sq.1 . . . . . . . 8  |-  S  =  ran  ( w  e.  ZZ[_i]  |->  ( ( abs `  w
) ^ 2 ) )
37362sqlem1 23503 . . . . . . 7  |-  ( 1  e.  S  <->  E. x  e.  ZZ[_i] 
1  =  ( ( abs `  x ) ^ 2 ) )
3835, 37mpbir 209 . . . . . 6  |-  1  e.  S
3923, 38syl6eqel 2537 . . . . 5  |-  ( ( ( ( ph  /\  ( u  e.  ZZ  /\  v  e.  ZZ ) )  /\  ( ( u  gcd  v )  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^ 2 ) ) ) )  /\  M  =  1 )  ->  M  e.  S )
40 2sqlem9.5 . . . . . . . 8  |-  ( ph  ->  A. b  e.  ( 1 ... ( M  -  1 ) ) A. a  e.  Y  ( b  ||  a  ->  b  e.  S ) )
4140ad2antrr 725 . . . . . . 7  |-  ( ( ( ph  /\  (
u  e.  ZZ  /\  v  e.  ZZ )
)  /\  ( (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) )  /\  M  =/=  1
) )  ->  A. b  e.  ( 1 ... ( M  -  1 ) ) A. a  e.  Y  ( b  ||  a  ->  b  e.  S
) )
42 2sqlem9.7 . . . . . . . 8  |-  ( ph  ->  M  ||  N )
4342ad2antrr 725 . . . . . . 7  |-  ( ( ( ph  /\  (
u  e.  ZZ  /\  v  e.  ZZ )
)  /\  ( (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) )  /\  M  =/=  1
) )  ->  M  ||  N )
4436, 192sqlem7 23510 . . . . . . . . . 10  |-  Y  C_  ( S  i^i  NN )
45 inss2 3701 . . . . . . . . . 10  |-  ( S  i^i  NN )  C_  NN
4644, 45sstri 3495 . . . . . . . . 9  |-  Y  C_  NN
4746, 1sseldi 3484 . . . . . . . 8  |-  ( ph  ->  N  e.  NN )
4847ad2antrr 725 . . . . . . 7  |-  ( ( ( ph  /\  (
u  e.  ZZ  /\  v  e.  ZZ )
)  /\  ( (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) )  /\  M  =/=  1
) )  ->  N  e.  NN )
49 2sqlem9.6 . . . . . . . . 9  |-  ( ph  ->  M  e.  NN )
5049ad2antrr 725 . . . . . . . 8  |-  ( ( ( ph  /\  (
u  e.  ZZ  /\  v  e.  ZZ )
)  /\  ( (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) )  /\  M  =/=  1
) )  ->  M  e.  NN )
51 simprr 756 . . . . . . . 8  |-  ( ( ( ph  /\  (
u  e.  ZZ  /\  v  e.  ZZ )
)  /\  ( (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) )  /\  M  =/=  1
) )  ->  M  =/=  1 )
52 eluz2b3 11159 . . . . . . . 8  |-  ( M  e.  ( ZZ>= `  2
)  <->  ( M  e.  NN  /\  M  =/=  1 ) )
5350, 51, 52sylanbrc 664 . . . . . . 7  |-  ( ( ( ph  /\  (
u  e.  ZZ  /\  v  e.  ZZ )
)  /\  ( (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) )  /\  M  =/=  1
) )  ->  M  e.  ( ZZ>= `  2 )
)
54 simplrl 759 . . . . . . 7  |-  ( ( ( ph  /\  (
u  e.  ZZ  /\  v  e.  ZZ )
)  /\  ( (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) )  /\  M  =/=  1
) )  ->  u  e.  ZZ )
55 simplrr 760 . . . . . . 7  |-  ( ( ( ph  /\  (
u  e.  ZZ  /\  v  e.  ZZ )
)  /\  ( (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) )  /\  M  =/=  1
) )  ->  v  e.  ZZ )
56 simprll 761 . . . . . . 7  |-  ( ( ( ph  /\  (
u  e.  ZZ  /\  v  e.  ZZ )
)  /\  ( (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) )  /\  M  =/=  1
) )  ->  (
u  gcd  v )  =  1 )
57 simprlr 762 . . . . . . 7  |-  ( ( ( ph  /\  (
u  e.  ZZ  /\  v  e.  ZZ )
)  /\  ( (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) )  /\  M  =/=  1
) )  ->  N  =  ( ( u ^ 2 )  +  ( v ^ 2 ) ) )
58 eqid 2441 . . . . . . 7  |-  ( ( ( u  +  ( M  /  2 ) )  mod  M )  -  ( M  / 
2 ) )  =  ( ( ( u  +  ( M  / 
2 ) )  mod 
M )  -  ( M  /  2 ) )
59 eqid 2441 . . . . . . 7  |-  ( ( ( v  +  ( M  /  2 ) )  mod  M )  -  ( M  / 
2 ) )  =  ( ( ( v  +  ( M  / 
2 ) )  mod 
M )  -  ( M  /  2 ) )
60 eqid 2441 . . . . . . 7  |-  ( ( ( ( u  +  ( M  /  2
) )  mod  M
)  -  ( M  /  2 ) )  /  ( ( ( ( u  +  ( M  /  2 ) )  mod  M )  -  ( M  / 
2 ) )  gcd  ( ( ( v  +  ( M  / 
2 ) )  mod 
M )  -  ( M  /  2 ) ) ) )  =  ( ( ( ( u  +  ( M  / 
2 ) )  mod 
M )  -  ( M  /  2 ) )  /  ( ( ( ( u  +  ( M  /  2 ) )  mod  M )  -  ( M  / 
2 ) )  gcd  ( ( ( v  +  ( M  / 
2 ) )  mod 
M )  -  ( M  /  2 ) ) ) )
61 eqid 2441 . . . . . . 7  |-  ( ( ( ( v  +  ( M  /  2
) )  mod  M
)  -  ( M  /  2 ) )  /  ( ( ( ( u  +  ( M  /  2 ) )  mod  M )  -  ( M  / 
2 ) )  gcd  ( ( ( v  +  ( M  / 
2 ) )  mod 
M )  -  ( M  /  2 ) ) ) )  =  ( ( ( ( v  +  ( M  / 
2 ) )  mod 
M )  -  ( M  /  2 ) )  /  ( ( ( ( u  +  ( M  /  2 ) )  mod  M )  -  ( M  / 
2 ) )  gcd  ( ( ( v  +  ( M  / 
2 ) )  mod 
M )  -  ( M  /  2 ) ) ) )
6236, 19, 41, 43, 48, 53, 54, 55, 56, 57, 58, 59, 60, 612sqlem8 23512 . . . . . 6  |-  ( ( ( ph  /\  (
u  e.  ZZ  /\  v  e.  ZZ )
)  /\  ( (
( u  gcd  v
)  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^
2 ) ) )  /\  M  =/=  1
) )  ->  M  e.  S )
6362anassrs 648 . . . . 5  |-  ( ( ( ( ph  /\  ( u  e.  ZZ  /\  v  e.  ZZ ) )  /\  ( ( u  gcd  v )  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^ 2 ) ) ) )  /\  M  =/=  1
)  ->  M  e.  S )
6439, 63pm2.61dane 2759 . . . 4  |-  ( ( ( ph  /\  (
u  e.  ZZ  /\  v  e.  ZZ )
)  /\  ( (
u  gcd  v )  =  1  /\  N  =  ( ( u ^ 2 )  +  ( v ^ 2 ) ) ) )  ->  M  e.  S
)
6564ex 434 . . 3  |-  ( (
ph  /\  ( u  e.  ZZ  /\  v  e.  ZZ ) )  -> 
( ( ( u  gcd  v )  =  1  /\  N  =  ( ( u ^
2 )  +  ( v ^ 2 ) ) )  ->  M  e.  S ) )
6665rexlimdvva 2940 . 2  |-  ( ph  ->  ( E. u  e.  ZZ  E. v  e.  ZZ  ( ( u  gcd  v )  =  1  /\  N  =  ( ( u ^
2 )  +  ( v ^ 2 ) ) )  ->  M  e.  S ) )
6722, 66mpd 15 1  |-  ( ph  ->  M  e.  S )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    /\ wa 369    = wceq 1381    e. wcel 1802   {cab 2426    =/= wne 2636   A.wral 2791   E.wrex 2792    i^i cin 3457   class class class wbr 4433    |-> cmpt 4491   ran crn 4986   ` cfv 5574  (class class class)co 6277   1c1 9491    + caddc 9493    - cmin 9805    / cdiv 10207   NNcn 10537   2c2 10586   ZZcz 10865   ZZ>=cuz 11085   ...cfz 11676    mod cmo 11970   ^cexp 12140   abscabs 13041    || cdvds 13858    gcd cgcd 14016   ZZ[_i]cgz 14319
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1603  ax-4 1616  ax-5 1689  ax-6 1732  ax-7 1774  ax-8 1804  ax-9 1806  ax-10 1821  ax-11 1826  ax-12 1838  ax-13 1983  ax-ext 2419  ax-sep 4554  ax-nul 4562  ax-pow 4611  ax-pr 4672  ax-un 6573  ax-cnex 9546  ax-resscn 9547  ax-1cn 9548  ax-icn 9549  ax-addcl 9550  ax-addrcl 9551  ax-mulcl 9552  ax-mulrcl 9553  ax-mulcom 9554  ax-addass 9555  ax-mulass 9556  ax-distr 9557  ax-i2m1 9558  ax-1ne0 9559  ax-1rid 9560  ax-rnegex 9561  ax-rrecex 9562  ax-cnre 9563  ax-pre-lttri 9564  ax-pre-lttrn 9565  ax-pre-ltadd 9566  ax-pre-mulgt0 9567  ax-pre-sup 9568
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3or 973  df-3an 974  df-tru 1384  df-ex 1598  df-nf 1602  df-sb 1725  df-eu 2270  df-mo 2271  df-clab 2427  df-cleq 2433  df-clel 2436  df-nfc 2591  df-ne 2638  df-nel 2639  df-ral 2796  df-rex 2797  df-reu 2798  df-rmo 2799  df-rab 2800  df-v 3095  df-sbc 3312  df-csb 3418  df-dif 3461  df-un 3463  df-in 3465  df-ss 3472  df-pss 3474  df-nul 3768  df-if 3923  df-pw 3995  df-sn 4011  df-pr 4013  df-tp 4015  df-op 4017  df-uni 4231  df-int 4268  df-iun 4313  df-br 4434  df-opab 4492  df-mpt 4493  df-tr 4527  df-eprel 4777  df-id 4781  df-po 4786  df-so 4787  df-fr 4824  df-we 4826  df-ord 4867  df-on 4868  df-lim 4869  df-suc 4870  df-xp 4991  df-rel 4992  df-cnv 4993  df-co 4994  df-dm 4995  df-rn 4996  df-res 4997  df-ima 4998  df-iota 5537  df-fun 5576  df-fn 5577  df-f 5578  df-f1 5579  df-fo 5580  df-f1o 5581  df-fv 5582  df-riota 6238  df-ov 6280  df-oprab 6281  df-mpt2 6282  df-om 6682  df-1st 6781  df-2nd 6782  df-recs 7040  df-rdg 7074  df-1o 7128  df-2o 7129  df-oadd 7132  df-er 7309  df-en 7515  df-dom 7516  df-sdom 7517  df-fin 7518  df-sup 7899  df-pnf 9628  df-mnf 9629  df-xr 9630  df-ltxr 9631  df-le 9632  df-sub 9807  df-neg 9808  df-div 10208  df-nn 10538  df-2 10595  df-3 10596  df-n0 10797  df-z 10866  df-uz 11086  df-rp 11225  df-fz 11677  df-fl 11903  df-mod 11971  df-seq 12082  df-exp 12141  df-cj 12906  df-re 12907  df-im 12908  df-sqrt 13042  df-abs 13043  df-dvds 13859  df-gcd 14017  df-prm 14090  df-gz 14320
This theorem is referenced by:  2sqlem10  23514
  Copyright terms: Public domain W3C validator