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Theorem 0dvds 12371
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 9489 . . . 4  |-  0  e.  ZZ
2 divides 12349 . . . 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 9483 . . . . . . 7  |-  ( n  e.  ZZ  ->  n  e.  CC )
54mul01d 8571 . . . . . 6  |-  ( n  e.  ZZ  ->  (
n  x.  0 )  =  0 )
6 eqtr2 2250 . . . . . 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 2645 . . 3  |-  ( E. n  e.  ZZ  (
n  x.  0 )  =  N  ->  N  =  0 )
103, 9biimtrdi 163 . 2  |-  ( N  e.  ZZ  ->  (
0  ||  N  ->  N  =  0 ) )
11 dvds0 12366 . . . 4  |-  ( 0  e.  ZZ  ->  0  ||  0 )
121, 11ax-mp 5 . . 3  |-  0  ||  0
13 breq2 4092 . . 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 1397    e. wcel 2202   E.wrex 2511   class class class wbr 4088  (class class class)co 6017   0cc0 8031    x. cmul 8036   ZZcz 9478    || cdvds 12347
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-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-setind 4635  ax-resscn 8123  ax-1cn 8124  ax-1re 8125  ax-icn 8126  ax-addcl 8127  ax-addrcl 8128  ax-mulcl 8129  ax-addcom 8131  ax-mulcom 8132  ax-addass 8133  ax-distr 8135  ax-i2m1 8136  ax-0id 8139  ax-rnegex 8140  ax-cnre 8142
This theorem depends on definitions:  df-bi 117  df-3or 1005  df-3an 1006  df-tru 1400  df-fal 1403  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-ral 2515  df-rex 2516  df-reu 2517  df-rab 2519  df-v 2804  df-sbc 3032  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-br 4089  df-opab 4151  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-iota 5286  df-fun 5328  df-fv 5334  df-riota 5970  df-ov 6020  df-oprab 6021  df-mpo 6022  df-sub 8351  df-neg 8352  df-z 9479  df-dvds 12348
This theorem is referenced by:  zdvdsdc  12372  fsumdvds  12402  dvdsabseq  12407  bezoutlemle  12578  dfgcd3  12580  dfgcd2  12584  dvdssq  12601  rpdvds  12670  pcdvdstr  12899  pc2dvds  12902  znf1o  14664
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