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Theorem 0dvds 12522
Description: Only 0 is divisible by 0. Theorem 1.1(h) in [ApostolNT] p. 14. (Contributed by Paul Chapman, 21-Mar-2011.)
Assertion
Ref Expression
0dvds  |-  ( N  e.  ZZ  ->  (
0  ||  N  <->  N  = 
0 ) )

Proof of Theorem 0dvds
Dummy variable  n is distinct from all other variables.
StepHypRef Expression
1 0z 9605 . . . 4  |-  0  e.  ZZ
2 divides 12500 . . . 4  |-  ( ( 0  e.  ZZ  /\  N  e.  ZZ )  ->  ( 0  ||  N  <->  E. n  e.  ZZ  (
n  x.  0 )  =  N ) )
31, 2mpan 424 . . 3  |-  ( N  e.  ZZ  ->  (
0  ||  N  <->  E. n  e.  ZZ  ( n  x.  0 )  =  N ) )
4 zcn 9599 . . . . . . 7  |-  ( n  e.  ZZ  ->  n  e.  CC )
54mul01d 8683 . . . . . 6  |-  ( n  e.  ZZ  ->  (
n  x.  0 )  =  0 )
6 eqtr2 2253 . . . . . 6  |-  ( ( ( n  x.  0 )  =  N  /\  ( n  x.  0
)  =  0 )  ->  N  =  0 )
75, 6sylan2 286 . . . . 5  |-  ( ( ( n  x.  0 )  =  N  /\  n  e.  ZZ )  ->  N  =  0 )
87ancoms 268 . . . 4  |-  ( ( n  e.  ZZ  /\  ( n  x.  0
)  =  N )  ->  N  =  0 )
98rexlimiva 2657 . . 3  |-  ( E. n  e.  ZZ  (
n  x.  0 )  =  N  ->  N  =  0 )
103, 9biimtrdi 163 . 2  |-  ( N  e.  ZZ  ->  (
0  ||  N  ->  N  =  0 ) )
11 dvds0 12517 . . . 4  |-  ( 0  e.  ZZ  ->  0  ||  0 )
121, 11ax-mp 5 . . 3  |-  0  ||  0
13 breq2 4118 . . 3  |-  ( N  =  0  ->  (
0  ||  N  <->  0  ||  0 ) )
1412, 13mpbiri 168 . 2  |-  ( N  =  0  ->  0  ||  N )
1510, 14impbid1 142 1  |-  ( N  e.  ZZ  ->  (
0  ||  N  <->  N  = 
0 ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    <-> wb 105    = wceq 1398    e. wcel 2205   E.wrex 2523   class class class wbr 4114  (class class class)co 6058   0cc0 8143    x. cmul 8148   ZZcz 9594    || cdvds 12498
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 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-14 2208  ax-ext 2216  ax-sep 4233  ax-pow 4292  ax-pr 4327  ax-setind 4664  ax-resscn 8235  ax-1cn 8236  ax-1re 8237  ax-icn 8238  ax-addcl 8239  ax-addrcl 8240  ax-mulcl 8241  ax-addcom 8243  ax-mulcom 8244  ax-addass 8245  ax-distr 8247  ax-i2m1 8248  ax-0id 8251  ax-rnegex 8252  ax-cnre 8254
This theorem depends on definitions:  df-bi 117  df-3or 1006  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ne 2415  df-ral 2527  df-rex 2528  df-reu 2529  df-rab 2531  df-v 2817  df-sbc 3046  df-dif 3216  df-un 3218  df-in 3220  df-ss 3227  df-pw 3676  df-sn 3700  df-pr 3701  df-op 3703  df-uni 3920  df-br 4115  df-opab 4177  df-id 4419  df-xp 4760  df-rel 4761  df-cnv 4762  df-co 4763  df-dm 4764  df-iota 5317  df-fun 5359  df-fv 5365  df-riota 6011  df-ov 6061  df-oprab 6062  df-mpo 6063  df-sub 8462  df-neg 8463  df-z 9595  df-dvds 12499
This theorem is referenced by:  zdvdsdc  12523  fsumdvds  12553  dvdsabseq  12558  bezoutlemle  12729  dfgcd3  12731  dfgcd2  12735  dvdssq  12752  rpdvds  12821  pcdvdstr  13050  pc2dvds  13053  znf1o  14925
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