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Theorem prmfac1 12084
Description: The factorial of a number only contains primes less than the base. (Contributed by Mario Carneiro, 6-Mar-2014.)
Assertion
Ref Expression
prmfac1  |-  ( ( N  e.  NN0  /\  P  e.  Prime  /\  P  ||  ( ! `  N
) )  ->  P  <_  N )

Proof of Theorem prmfac1
Dummy variables  x  k are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 fveq2 5486 . . . . . 6  |-  ( x  =  0  ->  ( ! `  x )  =  ( ! ` 
0 ) )
21breq2d 3994 . . . . 5  |-  ( x  =  0  ->  ( P  ||  ( ! `  x )  <->  P  ||  ( ! `  0 )
) )
3 breq2 3986 . . . . 5  |-  ( x  =  0  ->  ( P  <_  x  <->  P  <_  0 ) )
42, 3imbi12d 233 . . . 4  |-  ( x  =  0  ->  (
( P  ||  ( ! `  x )  ->  P  <_  x )  <->  ( P  ||  ( ! `
 0 )  ->  P  <_  0 ) ) )
54imbi2d 229 . . 3  |-  ( x  =  0  ->  (
( P  e.  Prime  -> 
( P  ||  ( ! `  x )  ->  P  <_  x )
)  <->  ( P  e. 
Prime  ->  ( P  ||  ( ! `  0 )  ->  P  <_  0
) ) ) )
6 fveq2 5486 . . . . . 6  |-  ( x  =  k  ->  ( ! `  x )  =  ( ! `  k ) )
76breq2d 3994 . . . . 5  |-  ( x  =  k  ->  ( P  ||  ( ! `  x )  <->  P  ||  ( ! `  k )
) )
8 breq2 3986 . . . . 5  |-  ( x  =  k  ->  ( P  <_  x  <->  P  <_  k ) )
97, 8imbi12d 233 . . . 4  |-  ( x  =  k  ->  (
( P  ||  ( ! `  x )  ->  P  <_  x )  <->  ( P  ||  ( ! `
 k )  ->  P  <_  k ) ) )
109imbi2d 229 . . 3  |-  ( x  =  k  ->  (
( P  e.  Prime  -> 
( P  ||  ( ! `  x )  ->  P  <_  x )
)  <->  ( P  e. 
Prime  ->  ( P  ||  ( ! `  k )  ->  P  <_  k
) ) ) )
11 fveq2 5486 . . . . . 6  |-  ( x  =  ( k  +  1 )  ->  ( ! `  x )  =  ( ! `  ( k  +  1 ) ) )
1211breq2d 3994 . . . . 5  |-  ( x  =  ( k  +  1 )  ->  ( P  ||  ( ! `  x )  <->  P  ||  ( ! `  ( k  +  1 ) ) ) )
13 breq2 3986 . . . . 5  |-  ( x  =  ( k  +  1 )  ->  ( P  <_  x  <->  P  <_  ( k  +  1 ) ) )
1412, 13imbi12d 233 . . . 4  |-  ( x  =  ( k  +  1 )  ->  (
( P  ||  ( ! `  x )  ->  P  <_  x )  <->  ( P  ||  ( ! `
 ( k  +  1 ) )  ->  P  <_  ( k  +  1 ) ) ) )
1514imbi2d 229 . . 3  |-  ( x  =  ( k  +  1 )  ->  (
( P  e.  Prime  -> 
( P  ||  ( ! `  x )  ->  P  <_  x )
)  <->  ( P  e. 
Prime  ->  ( P  ||  ( ! `  ( k  +  1 ) )  ->  P  <_  (
k  +  1 ) ) ) ) )
16 fveq2 5486 . . . . . 6  |-  ( x  =  N  ->  ( ! `  x )  =  ( ! `  N ) )
1716breq2d 3994 . . . . 5  |-  ( x  =  N  ->  ( P  ||  ( ! `  x )  <->  P  ||  ( ! `  N )
) )
18 breq2 3986 . . . . 5  |-  ( x  =  N  ->  ( P  <_  x  <->  P  <_  N ) )
1917, 18imbi12d 233 . . . 4  |-  ( x  =  N  ->  (
( P  ||  ( ! `  x )  ->  P  <_  x )  <->  ( P  ||  ( ! `
 N )  ->  P  <_  N ) ) )
2019imbi2d 229 . . 3  |-  ( x  =  N  ->  (
( P  e.  Prime  -> 
( P  ||  ( ! `  x )  ->  P  <_  x )
)  <->  ( P  e. 
Prime  ->  ( P  ||  ( ! `  N )  ->  P  <_  N
) ) ) )
21 fac0 10641 . . . . 5  |-  ( ! `
 0 )  =  1
2221breq2i 3990 . . . 4  |-  ( P 
||  ( ! ` 
0 )  <->  P  ||  1
)
23 nprmdvds1 12072 . . . . 5  |-  ( P  e.  Prime  ->  -.  P  ||  1 )
2423pm2.21d 609 . . . 4  |-  ( P  e.  Prime  ->  ( P 
||  1  ->  P  <_  0 ) )
2522, 24syl5bi 151 . . 3  |-  ( P  e.  Prime  ->  ( P 
||  ( ! ` 
0 )  ->  P  <_  0 ) )
26 facp1 10643 . . . . . . . . . 10  |-  ( k  e.  NN0  ->  ( ! `
 ( k  +  1 ) )  =  ( ( ! `  k )  x.  (
k  +  1 ) ) )
2726adantr 274 . . . . . . . . 9  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( ! `  (
k  +  1 ) )  =  ( ( ! `  k )  x.  ( k  +  1 ) ) )
2827breq2d 3994 . . . . . . . 8  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( P  ||  ( ! `  ( k  +  1 ) )  <-> 
P  ||  ( ( ! `  k )  x.  ( k  +  1 ) ) ) )
29 simpr 109 . . . . . . . . 9  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  ->  P  e.  Prime )
30 faccl 10648 . . . . . . . . . . 11  |-  ( k  e.  NN0  ->  ( ! `
 k )  e.  NN )
3130adantr 274 . . . . . . . . . 10  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( ! `  k
)  e.  NN )
3231nnzd 9312 . . . . . . . . 9  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( ! `  k
)  e.  ZZ )
33 nn0p1nn 9153 . . . . . . . . . . 11  |-  ( k  e.  NN0  ->  ( k  +  1 )  e.  NN )
3433adantr 274 . . . . . . . . . 10  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( k  +  1 )  e.  NN )
3534nnzd 9312 . . . . . . . . 9  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( k  +  1 )  e.  ZZ )
36 euclemma 12078 . . . . . . . . 9  |-  ( ( P  e.  Prime  /\  ( ! `  k )  e.  ZZ  /\  ( k  +  1 )  e.  ZZ )  ->  ( P  ||  ( ( ! `
 k )  x.  ( k  +  1 ) )  <->  ( P  ||  ( ! `  k
)  \/  P  ||  ( k  +  1 ) ) ) )
3729, 32, 35, 36syl3anc 1228 . . . . . . . 8  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( P  ||  (
( ! `  k
)  x.  ( k  +  1 ) )  <-> 
( P  ||  ( ! `  k )  \/  P  ||  ( k  +  1 ) ) ) )
3828, 37bitrd 187 . . . . . . 7  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( P  ||  ( ! `  ( k  +  1 ) )  <-> 
( P  ||  ( ! `  k )  \/  P  ||  ( k  +  1 ) ) ) )
39 nn0re 9123 . . . . . . . . . . . . 13  |-  ( k  e.  NN0  ->  k  e.  RR )
4039adantr 274 . . . . . . . . . . . 12  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
k  e.  RR )
4140lep1d 8826 . . . . . . . . . . 11  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
k  <_  ( k  +  1 ) )
42 prmz 12043 . . . . . . . . . . . . . 14  |-  ( P  e.  Prime  ->  P  e.  ZZ )
4342adantl 275 . . . . . . . . . . . . 13  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  ->  P  e.  ZZ )
4443zred 9313 . . . . . . . . . . . 12  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  ->  P  e.  RR )
4534nnred 8870 . . . . . . . . . . . 12  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( k  +  1 )  e.  RR )
46 letr 7981 . . . . . . . . . . . 12  |-  ( ( P  e.  RR  /\  k  e.  RR  /\  (
k  +  1 )  e.  RR )  -> 
( ( P  <_ 
k  /\  k  <_  ( k  +  1 ) )  ->  P  <_  ( k  +  1 ) ) )
4744, 40, 45, 46syl3anc 1228 . . . . . . . . . . 11  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( ( P  <_ 
k  /\  k  <_  ( k  +  1 ) )  ->  P  <_  ( k  +  1 ) ) )
4841, 47mpan2d 425 . . . . . . . . . 10  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( P  <_  k  ->  P  <_  ( k  +  1 ) ) )
4948imim2d 54 . . . . . . . . 9  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( ( P  ||  ( ! `  k )  ->  P  <_  k
)  ->  ( P  ||  ( ! `  k
)  ->  P  <_  ( k  +  1 ) ) ) )
5049com23 78 . . . . . . . 8  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( P  ||  ( ! `  k )  ->  ( ( P  ||  ( ! `  k )  ->  P  <_  k
)  ->  P  <_  ( k  +  1 ) ) ) )
51 dvdsle 11782 . . . . . . . . . 10  |-  ( ( P  e.  ZZ  /\  ( k  +  1 )  e.  NN )  ->  ( P  ||  ( k  +  1 )  ->  P  <_  ( k  +  1 ) ) )
5243, 34, 51syl2anc 409 . . . . . . . . 9  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( P  ||  (
k  +  1 )  ->  P  <_  (
k  +  1 ) ) )
5352a1dd 48 . . . . . . . 8  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( P  ||  (
k  +  1 )  ->  ( ( P 
||  ( ! `  k )  ->  P  <_  k )  ->  P  <_  ( k  +  1 ) ) ) )
5450, 53jaod 707 . . . . . . 7  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( ( P  ||  ( ! `  k )  \/  P  ||  (
k  +  1 ) )  ->  ( ( P  ||  ( ! `  k )  ->  P  <_  k )  ->  P  <_  ( k  +  1 ) ) ) )
5538, 54sylbid 149 . . . . . 6  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( P  ||  ( ! `  ( k  +  1 ) )  ->  ( ( P 
||  ( ! `  k )  ->  P  <_  k )  ->  P  <_  ( k  +  1 ) ) ) )
5655com23 78 . . . . 5  |-  ( ( k  e.  NN0  /\  P  e.  Prime )  -> 
( ( P  ||  ( ! `  k )  ->  P  <_  k
)  ->  ( P  ||  ( ! `  (
k  +  1 ) )  ->  P  <_  ( k  +  1 ) ) ) )
5756ex 114 . . . 4  |-  ( k  e.  NN0  ->  ( P  e.  Prime  ->  ( ( P  ||  ( ! `
 k )  ->  P  <_  k )  -> 
( P  ||  ( ! `  ( k  +  1 ) )  ->  P  <_  (
k  +  1 ) ) ) ) )
5857a2d 26 . . 3  |-  ( k  e.  NN0  ->  ( ( P  e.  Prime  ->  ( P  ||  ( ! `
 k )  ->  P  <_  k ) )  ->  ( P  e. 
Prime  ->  ( P  ||  ( ! `  ( k  +  1 ) )  ->  P  <_  (
k  +  1 ) ) ) ) )
595, 10, 15, 20, 25, 58nn0ind 9305 . 2  |-  ( N  e.  NN0  ->  ( P  e.  Prime  ->  ( P 
||  ( ! `  N )  ->  P  <_  N ) ) )
60593imp 1183 1  |-  ( ( N  e.  NN0  /\  P  e.  Prime  /\  P  ||  ( ! `  N
) )  ->  P  <_  N )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 103    <-> wb 104    \/ wo 698    /\ w3a 968    = wceq 1343    e. wcel 2136   class class class wbr 3982   ` cfv 5188  (class class class)co 5842   RRcr 7752   0cc0 7753   1c1 7754    + caddc 7756    x. cmul 7758    <_ cle 7934   NNcn 8857   NN0cn0 9114   ZZcz 9191   !cfa 10638    || cdvds 11727   Primecprime 12039
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 604  ax-in2 605  ax-io 699  ax-5 1435  ax-7 1436  ax-gen 1437  ax-ie1 1481  ax-ie2 1482  ax-8 1492  ax-10 1493  ax-11 1494  ax-i12 1495  ax-bndl 1497  ax-4 1498  ax-17 1514  ax-i9 1518  ax-ial 1522  ax-i5r 1523  ax-13 2138  ax-14 2139  ax-ext 2147  ax-coll 4097  ax-sep 4100  ax-nul 4108  ax-pow 4153  ax-pr 4187  ax-un 4411  ax-setind 4514  ax-iinf 4565  ax-cnex 7844  ax-resscn 7845  ax-1cn 7846  ax-1re 7847  ax-icn 7848  ax-addcl 7849  ax-addrcl 7850  ax-mulcl 7851  ax-mulrcl 7852  ax-addcom 7853  ax-mulcom 7854  ax-addass 7855  ax-mulass 7856  ax-distr 7857  ax-i2m1 7858  ax-0lt1 7859  ax-1rid 7860  ax-0id 7861  ax-rnegex 7862  ax-precex 7863  ax-cnre 7864  ax-pre-ltirr 7865  ax-pre-ltwlin 7866  ax-pre-lttrn 7867  ax-pre-apti 7868  ax-pre-ltadd 7869  ax-pre-mulgt0 7870  ax-pre-mulext 7871  ax-arch 7872  ax-caucvg 7873
This theorem depends on definitions:  df-bi 116  df-dc 825  df-3or 969  df-3an 970  df-tru 1346  df-fal 1349  df-nf 1449  df-sb 1751  df-eu 2017  df-mo 2018  df-clab 2152  df-cleq 2158  df-clel 2161  df-nfc 2297  df-ne 2337  df-nel 2432  df-ral 2449  df-rex 2450  df-reu 2451  df-rmo 2452  df-rab 2453  df-v 2728  df-sbc 2952  df-csb 3046  df-dif 3118  df-un 3120  df-in 3122  df-ss 3129  df-nul 3410  df-if 3521  df-pw 3561  df-sn 3582  df-pr 3583  df-op 3585  df-uni 3790  df-int 3825  df-iun 3868  df-br 3983  df-opab 4044  df-mpt 4045  df-tr 4081  df-id 4271  df-po 4274  df-iso 4275  df-iord 4344  df-on 4346  df-ilim 4347  df-suc 4349  df-iom 4568  df-xp 4610  df-rel 4611  df-cnv 4612  df-co 4613  df-dm 4614  df-rn 4615  df-res 4616  df-ima 4617  df-iota 5153  df-fun 5190  df-fn 5191  df-f 5192  df-f1 5193  df-fo 5194  df-f1o 5195  df-fv 5196  df-riota 5798  df-ov 5845  df-oprab 5846  df-mpo 5847  df-1st 6108  df-2nd 6109  df-recs 6273  df-frec 6359  df-1o 6384  df-2o 6385  df-er 6501  df-en 6707  df-sup 6949  df-pnf 7935  df-mnf 7936  df-xr 7937  df-ltxr 7938  df-le 7939  df-sub 8071  df-neg 8072  df-reap 8473  df-ap 8480  df-div 8569  df-inn 8858  df-2 8916  df-3 8917  df-4 8918  df-n0 9115  df-z 9192  df-uz 9467  df-q 9558  df-rp 9590  df-fz 9945  df-fzo 10078  df-fl 10205  df-mod 10258  df-seqfrec 10381  df-exp 10455  df-fac 10639  df-cj 10784  df-re 10785  df-im 10786  df-rsqrt 10940  df-abs 10941  df-dvds 11728  df-gcd 11876  df-prm 12040
This theorem is referenced by:  prmndvdsfaclt  12088
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