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Theorem ndvdssub 11889
Description: Corollary of the division algorithm. If an integer  D greater than  1 divides  N, then it does not divide any of  N  -  1,  N  -  2...  N  -  ( D  -  1 ). (Contributed by Paul Chapman, 31-Mar-2011.)
Assertion
Ref Expression
ndvdssub  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  ( K  e.  NN  /\  K  <  D ) )  -> 
( D  ||  N  ->  -.  D  ||  ( N  -  K )
) )

Proof of Theorem ndvdssub
Dummy variables  r  x are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 nnnn0 9142 . . . . . . . 8  |-  ( K  e.  NN  ->  K  e.  NN0 )
2 nnne0 8906 . . . . . . . 8  |-  ( K  e.  NN  ->  K  =/=  0 )
31, 2jca 304 . . . . . . 7  |-  ( K  e.  NN  ->  ( K  e.  NN0  /\  K  =/=  0 ) )
4 df-ne 2341 . . . . . . . . . . . 12  |-  ( K  =/=  0  <->  -.  K  =  0 )
54anbi2i 454 . . . . . . . . . . 11  |-  ( ( K  <  D  /\  K  =/=  0 )  <->  ( K  <  D  /\  -.  K  =  0 ) )
6 divalg2 11885 . . . . . . . . . . . . . . . . . . 19  |-  ( ( N  e.  ZZ  /\  D  e.  NN )  ->  E! r  e.  NN0  ( r  <  D  /\  D  ||  ( N  -  r ) ) )
7 breq1 3992 . . . . . . . . . . . . . . . . . . . . 21  |-  ( r  =  x  ->  (
r  <  D  <->  x  <  D ) )
8 oveq2 5861 . . . . . . . . . . . . . . . . . . . . . 22  |-  ( r  =  x  ->  ( N  -  r )  =  ( N  -  x ) )
98breq2d 4001 . . . . . . . . . . . . . . . . . . . . 21  |-  ( r  =  x  ->  ( D  ||  ( N  -  r )  <->  D  ||  ( N  -  x )
) )
107, 9anbi12d 470 . . . . . . . . . . . . . . . . . . . 20  |-  ( r  =  x  ->  (
( r  <  D  /\  D  ||  ( N  -  r ) )  <-> 
( x  <  D  /\  D  ||  ( N  -  x ) ) ) )
1110reu4 2924 . . . . . . . . . . . . . . . . . . 19  |-  ( E! r  e.  NN0  (
r  <  D  /\  D  ||  ( N  -  r ) )  <->  ( E. r  e.  NN0  ( r  <  D  /\  D  ||  ( N  -  r
) )  /\  A. r  e.  NN0  A. x  e.  NN0  ( ( ( r  <  D  /\  D  ||  ( N  -  r ) )  /\  ( x  <  D  /\  D  ||  ( N  -  x ) ) )  ->  r  =  x ) ) )
126, 11sylib 121 . . . . . . . . . . . . . . . . . 18  |-  ( ( N  e.  ZZ  /\  D  e.  NN )  ->  ( E. r  e. 
NN0  ( r  < 
D  /\  D  ||  ( N  -  r )
)  /\  A. r  e.  NN0  A. x  e. 
NN0  ( ( ( r  <  D  /\  D  ||  ( N  -  r ) )  /\  ( x  <  D  /\  D  ||  ( N  -  x ) ) )  ->  r  =  x ) ) )
13 nngt0 8903 . . . . . . . . . . . . . . . . . . . . . . . . . 26  |-  ( D  e.  NN  ->  0  <  D )
14133ad2ant2 1014 . . . . . . . . . . . . . . . . . . . . . . . . 25  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  0  <  D )
15 zcn 9217 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29  |-  ( N  e.  ZZ  ->  N  e.  CC )
1615subid1d 8219 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  |-  ( N  e.  ZZ  ->  ( N  -  0 )  =  N )
1716breq2d 4001 . . . . . . . . . . . . . . . . . . . . . . . . . . 27  |-  ( N  e.  ZZ  ->  ( D  ||  ( N  - 
0 )  <->  D  ||  N
) )
1817biimpar 295 . . . . . . . . . . . . . . . . . . . . . . . . . 26  |-  ( ( N  e.  ZZ  /\  D  ||  N )  ->  D  ||  ( N  - 
0 ) )
19183adant2 1011 . . . . . . . . . . . . . . . . . . . . . . . . 25  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  D  ||  ( N  -  0 ) )
2014, 19jca 304 . . . . . . . . . . . . . . . . . . . . . . . 24  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  (
0  <  D  /\  D  ||  ( N  - 
0 ) ) )
21203expa 1198 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( ( ( N  e.  ZZ  /\  D  e.  NN )  /\  D  ||  N
)  ->  ( 0  <  D  /\  D  ||  ( N  -  0 ) ) )
2221anim2i 340 . . . . . . . . . . . . . . . . . . . . . 22  |-  ( ( ( r  <  D  /\  D  ||  ( N  -  r ) )  /\  ( ( N  e.  ZZ  /\  D  e.  NN )  /\  D  ||  N ) )  -> 
( ( r  < 
D  /\  D  ||  ( N  -  r )
)  /\  ( 0  <  D  /\  D  ||  ( N  -  0 ) ) ) )
2322ancoms 266 . . . . . . . . . . . . . . . . . . . . 21  |-  ( ( ( ( N  e.  ZZ  /\  D  e.  NN )  /\  D  ||  N )  /\  (
r  <  D  /\  D  ||  ( N  -  r ) ) )  ->  ( ( r  <  D  /\  D  ||  ( N  -  r
) )  /\  (
0  <  D  /\  D  ||  ( N  - 
0 ) ) ) )
24 0nn0 9150 . . . . . . . . . . . . . . . . . . . . . 22  |-  0  e.  NN0
25 breq1 3992 . . . . . . . . . . . . . . . . . . . . . . . . . 26  |-  ( x  =  0  ->  (
x  <  D  <->  0  <  D ) )
26 oveq2 5861 . . . . . . . . . . . . . . . . . . . . . . . . . . 27  |-  ( x  =  0  ->  ( N  -  x )  =  ( N  - 
0 ) )
2726breq2d 4001 . . . . . . . . . . . . . . . . . . . . . . . . . 26  |-  ( x  =  0  ->  ( D  ||  ( N  -  x )  <->  D  ||  ( N  -  0 ) ) )
2825, 27anbi12d 470 . . . . . . . . . . . . . . . . . . . . . . . . 25  |-  ( x  =  0  ->  (
( x  <  D  /\  D  ||  ( N  -  x ) )  <-> 
( 0  <  D  /\  D  ||  ( N  -  0 ) ) ) )
2928anbi2d 461 . . . . . . . . . . . . . . . . . . . . . . . 24  |-  ( x  =  0  ->  (
( ( r  < 
D  /\  D  ||  ( N  -  r )
)  /\  ( x  <  D  /\  D  ||  ( N  -  x
) ) )  <->  ( (
r  <  D  /\  D  ||  ( N  -  r ) )  /\  ( 0  <  D  /\  D  ||  ( N  -  0 ) ) ) ) )
30 eqeq2 2180 . . . . . . . . . . . . . . . . . . . . . . . 24  |-  ( x  =  0  ->  (
r  =  x  <->  r  = 
0 ) )
3129, 30imbi12d 233 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( x  =  0  ->  (
( ( ( r  <  D  /\  D  ||  ( N  -  r
) )  /\  (
x  <  D  /\  D  ||  ( N  -  x ) ) )  ->  r  =  x )  <->  ( ( ( r  <  D  /\  D  ||  ( N  -  r ) )  /\  ( 0  <  D  /\  D  ||  ( N  -  0 ) ) )  ->  r  = 
0 ) ) )
3231rspcv 2830 . . . . . . . . . . . . . . . . . . . . . 22  |-  ( 0  e.  NN0  ->  ( A. x  e.  NN0  ( ( ( r  <  D  /\  D  ||  ( N  -  r ) )  /\  ( x  < 
D  /\  D  ||  ( N  -  x )
) )  ->  r  =  x )  ->  (
( ( r  < 
D  /\  D  ||  ( N  -  r )
)  /\  ( 0  <  D  /\  D  ||  ( N  -  0 ) ) )  -> 
r  =  0 ) ) )
3324, 32ax-mp 5 . . . . . . . . . . . . . . . . . . . . 21  |-  ( A. x  e.  NN0  ( ( ( r  <  D  /\  D  ||  ( N  -  r ) )  /\  ( x  < 
D  /\  D  ||  ( N  -  x )
) )  ->  r  =  x )  ->  (
( ( r  < 
D  /\  D  ||  ( N  -  r )
)  /\  ( 0  <  D  /\  D  ||  ( N  -  0 ) ) )  -> 
r  =  0 ) )
3423, 33syl5 32 . . . . . . . . . . . . . . . . . . . 20  |-  ( A. x  e.  NN0  ( ( ( r  <  D  /\  D  ||  ( N  -  r ) )  /\  ( x  < 
D  /\  D  ||  ( N  -  x )
) )  ->  r  =  x )  ->  (
( ( ( N  e.  ZZ  /\  D  e.  NN )  /\  D  ||  N )  /\  (
r  <  D  /\  D  ||  ( N  -  r ) ) )  ->  r  =  0 ) )
3534expd 256 . . . . . . . . . . . . . . . . . . 19  |-  ( A. x  e.  NN0  ( ( ( r  <  D  /\  D  ||  ( N  -  r ) )  /\  ( x  < 
D  /\  D  ||  ( N  -  x )
) )  ->  r  =  x )  ->  (
( ( N  e.  ZZ  /\  D  e.  NN )  /\  D  ||  N )  ->  (
( r  <  D  /\  D  ||  ( N  -  r ) )  ->  r  =  0 ) ) )
3635ralimi 2533 . . . . . . . . . . . . . . . . . 18  |-  ( A. r  e.  NN0  A. x  e.  NN0  ( ( ( r  <  D  /\  D  ||  ( N  -  r ) )  /\  ( x  <  D  /\  D  ||  ( N  -  x ) ) )  ->  r  =  x )  ->  A. r  e.  NN0  ( ( ( N  e.  ZZ  /\  D  e.  NN )  /\  D  ||  N )  ->  ( ( r  <  D  /\  D  ||  ( N  -  r
) )  ->  r  =  0 ) ) )
3712, 36simpl2im 384 . . . . . . . . . . . . . . . . 17  |-  ( ( N  e.  ZZ  /\  D  e.  NN )  ->  A. r  e.  NN0  ( ( ( N  e.  ZZ  /\  D  e.  NN )  /\  D  ||  N )  ->  (
( r  <  D  /\  D  ||  ( N  -  r ) )  ->  r  =  0 ) ) )
38 r19.21v 2547 . . . . . . . . . . . . . . . . 17  |-  ( A. r  e.  NN0  ( ( ( N  e.  ZZ  /\  D  e.  NN )  /\  D  ||  N
)  ->  ( (
r  <  D  /\  D  ||  ( N  -  r ) )  -> 
r  =  0 ) )  <->  ( ( ( N  e.  ZZ  /\  D  e.  NN )  /\  D  ||  N )  ->  A. r  e.  NN0  ( ( r  < 
D  /\  D  ||  ( N  -  r )
)  ->  r  = 
0 ) ) )
3937, 38sylib 121 . . . . . . . . . . . . . . . 16  |-  ( ( N  e.  ZZ  /\  D  e.  NN )  ->  ( ( ( N  e.  ZZ  /\  D  e.  NN )  /\  D  ||  N )  ->  A. r  e.  NN0  ( ( r  <  D  /\  D  ||  ( N  -  r
) )  ->  r  =  0 ) ) )
4039expd 256 . . . . . . . . . . . . . . 15  |-  ( ( N  e.  ZZ  /\  D  e.  NN )  ->  ( ( N  e.  ZZ  /\  D  e.  NN )  ->  ( D  ||  N  ->  A. r  e.  NN0  ( ( r  <  D  /\  D  ||  ( N  -  r
) )  ->  r  =  0 ) ) ) )
4140pm2.43i 49 . . . . . . . . . . . . . 14  |-  ( ( N  e.  ZZ  /\  D  e.  NN )  ->  ( D  ||  N  ->  A. r  e.  NN0  ( ( r  < 
D  /\  D  ||  ( N  -  r )
)  ->  r  = 
0 ) ) )
42413impia 1195 . . . . . . . . . . . . 13  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  A. r  e.  NN0  ( ( r  <  D  /\  D  ||  ( N  -  r
) )  ->  r  =  0 ) )
43 breq1 3992 . . . . . . . . . . . . . . . 16  |-  ( r  =  K  ->  (
r  <  D  <->  K  <  D ) )
44 oveq2 5861 . . . . . . . . . . . . . . . . 17  |-  ( r  =  K  ->  ( N  -  r )  =  ( N  -  K ) )
4544breq2d 4001 . . . . . . . . . . . . . . . 16  |-  ( r  =  K  ->  ( D  ||  ( N  -  r )  <->  D  ||  ( N  -  K )
) )
4643, 45anbi12d 470 . . . . . . . . . . . . . . 15  |-  ( r  =  K  ->  (
( r  <  D  /\  D  ||  ( N  -  r ) )  <-> 
( K  <  D  /\  D  ||  ( N  -  K ) ) ) )
47 eqeq1 2177 . . . . . . . . . . . . . . 15  |-  ( r  =  K  ->  (
r  =  0  <->  K  =  0 ) )
4846, 47imbi12d 233 . . . . . . . . . . . . . 14  |-  ( r  =  K  ->  (
( ( r  < 
D  /\  D  ||  ( N  -  r )
)  ->  r  = 
0 )  <->  ( ( K  <  D  /\  D  ||  ( N  -  K
) )  ->  K  =  0 ) ) )
4948rspcv 2830 . . . . . . . . . . . . 13  |-  ( K  e.  NN0  ->  ( A. r  e.  NN0  ( ( r  <  D  /\  D  ||  ( N  -  r ) )  -> 
r  =  0 )  ->  ( ( K  <  D  /\  D  ||  ( N  -  K
) )  ->  K  =  0 ) ) )
5042, 49syl5com 29 . . . . . . . . . . . 12  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  ( K  e.  NN0  ->  (
( K  <  D  /\  D  ||  ( N  -  K ) )  ->  K  =  0 ) ) )
51 pm3.37 684 . . . . . . . . . . . 12  |-  ( ( ( K  <  D  /\  D  ||  ( N  -  K ) )  ->  K  =  0 )  ->  ( ( K  <  D  /\  -.  K  =  0 )  ->  -.  D  ||  ( N  -  K )
) )
5250, 51syl6 33 . . . . . . . . . . 11  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  ( K  e.  NN0  ->  (
( K  <  D  /\  -.  K  =  0 )  ->  -.  D  ||  ( N  -  K
) ) ) )
535, 52syl7bi 164 . . . . . . . . . 10  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  ( K  e.  NN0  ->  (
( K  <  D  /\  K  =/=  0
)  ->  -.  D  ||  ( N  -  K
) ) ) )
5453exp4a 364 . . . . . . . . 9  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  ( K  e.  NN0  ->  ( K  <  D  ->  ( K  =/=  0  ->  -.  D  ||  ( N  -  K ) ) ) ) )
5554com23 78 . . . . . . . 8  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  ( K  <  D  ->  ( K  e.  NN0  ->  ( K  =/=  0  ->  -.  D  ||  ( N  -  K ) ) ) ) )
5655imp4a 347 . . . . . . 7  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  ( K  <  D  ->  (
( K  e.  NN0  /\  K  =/=  0 )  ->  -.  D  ||  ( N  -  K )
) ) )
573, 56syl7 69 . . . . . 6  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  ( K  <  D  ->  ( K  e.  NN  ->  -.  D  ||  ( N  -  K ) ) ) )
5857com23 78 . . . . 5  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  ( K  e.  NN  ->  ( K  <  D  ->  -.  D  ||  ( N  -  K ) ) ) )
5958impd 252 . . . 4  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  D  ||  N )  ->  (
( K  e.  NN  /\  K  <  D )  ->  -.  D  ||  ( N  -  K )
) )
60593expia 1200 . . 3  |-  ( ( N  e.  ZZ  /\  D  e.  NN )  ->  ( D  ||  N  ->  ( ( K  e.  NN  /\  K  < 
D )  ->  -.  D  ||  ( N  -  K ) ) ) )
6160com23 78 . 2  |-  ( ( N  e.  ZZ  /\  D  e.  NN )  ->  ( ( K  e.  NN  /\  K  < 
D )  ->  ( D  ||  N  ->  -.  D  ||  ( N  -  K ) ) ) )
62613impia 1195 1  |-  ( ( N  e.  ZZ  /\  D  e.  NN  /\  ( K  e.  NN  /\  K  <  D ) )  -> 
( D  ||  N  ->  -.  D  ||  ( N  -  K )
) )
Colors of variables: wff set class
Syntax hints:   -. wn 3    -> wi 4    /\ wa 103    /\ w3a 973    = wceq 1348    e. wcel 2141    =/= wne 2340   A.wral 2448   E.wrex 2449   E!wreu 2450   class class class wbr 3989  (class class class)co 5853   0cc0 7774    < clt 7954    - cmin 8090   NNcn 8878   NN0cn0 9135   ZZcz 9212    || cdvds 11749
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 609  ax-in2 610  ax-io 704  ax-5 1440  ax-7 1441  ax-gen 1442  ax-ie1 1486  ax-ie2 1487  ax-8 1497  ax-10 1498  ax-11 1499  ax-i12 1500  ax-bndl 1502  ax-4 1503  ax-17 1519  ax-i9 1523  ax-ial 1527  ax-i5r 1528  ax-13 2143  ax-14 2144  ax-ext 2152  ax-coll 4104  ax-sep 4107  ax-nul 4115  ax-pow 4160  ax-pr 4194  ax-un 4418  ax-setind 4521  ax-iinf 4572  ax-cnex 7865  ax-resscn 7866  ax-1cn 7867  ax-1re 7868  ax-icn 7869  ax-addcl 7870  ax-addrcl 7871  ax-mulcl 7872  ax-mulrcl 7873  ax-addcom 7874  ax-mulcom 7875  ax-addass 7876  ax-mulass 7877  ax-distr 7878  ax-i2m1 7879  ax-0lt1 7880  ax-1rid 7881  ax-0id 7882  ax-rnegex 7883  ax-precex 7884  ax-cnre 7885  ax-pre-ltirr 7886  ax-pre-ltwlin 7887  ax-pre-lttrn 7888  ax-pre-apti 7889  ax-pre-ltadd 7890  ax-pre-mulgt0 7891  ax-pre-mulext 7892  ax-arch 7893
This theorem depends on definitions:  df-bi 116  df-dc 830  df-3or 974  df-3an 975  df-tru 1351  df-fal 1354  df-nf 1454  df-sb 1756  df-eu 2022  df-mo 2023  df-clab 2157  df-cleq 2163  df-clel 2166  df-nfc 2301  df-ne 2341  df-nel 2436  df-ral 2453  df-rex 2454  df-reu 2455  df-rmo 2456  df-rab 2457  df-v 2732  df-sbc 2956  df-csb 3050  df-dif 3123  df-un 3125  df-in 3127  df-ss 3134  df-nul 3415  df-if 3527  df-pw 3568  df-sn 3589  df-pr 3590  df-op 3592  df-uni 3797  df-int 3832  df-iun 3875  df-br 3990  df-opab 4051  df-mpt 4052  df-tr 4088  df-id 4278  df-po 4281  df-iso 4282  df-iord 4351  df-on 4353  df-ilim 4354  df-suc 4356  df-iom 4575  df-xp 4617  df-rel 4618  df-cnv 4619  df-co 4620  df-dm 4621  df-rn 4622  df-res 4623  df-ima 4624  df-iota 5160  df-fun 5200  df-fn 5201  df-f 5202  df-f1 5203  df-fo 5204  df-f1o 5205  df-fv 5206  df-riota 5809  df-ov 5856  df-oprab 5857  df-mpo 5858  df-1st 6119  df-2nd 6120  df-recs 6284  df-frec 6370  df-pnf 7956  df-mnf 7957  df-xr 7958  df-ltxr 7959  df-le 7960  df-sub 8092  df-neg 8093  df-reap 8494  df-ap 8501  df-div 8590  df-inn 8879  df-2 8937  df-n0 9136  df-z 9213  df-uz 9488  df-q 9579  df-rp 9611  df-fl 10226  df-mod 10279  df-seqfrec 10402  df-exp 10476  df-cj 10806  df-re 10807  df-im 10808  df-rsqrt 10962  df-abs 10963  df-dvds 11750
This theorem is referenced by:  ndvdsadd  11890
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