ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  numltc Unicode version

Theorem numltc 9231
Description: Comparing two decimal integers (unequal higher places). (Contributed by Mario Carneiro, 18-Feb-2014.)
Hypotheses
Ref Expression
numlt.1  |-  T  e.  NN
numlt.2  |-  A  e. 
NN0
numlt.3  |-  B  e. 
NN0
numltc.3  |-  C  e. 
NN0
numltc.4  |-  D  e. 
NN0
numltc.5  |-  C  < 
T
numltc.6  |-  A  < 
B
Assertion
Ref Expression
numltc  |-  ( ( T  x.  A )  +  C )  < 
( ( T  x.  B )  +  D
)

Proof of Theorem numltc
StepHypRef Expression
1 numlt.1 . . . . 5  |-  T  e.  NN
2 numlt.2 . . . . 5  |-  A  e. 
NN0
3 numltc.3 . . . . 5  |-  C  e. 
NN0
4 numltc.5 . . . . 5  |-  C  < 
T
51, 2, 3, 1, 4numlt 9230 . . . 4  |-  ( ( T  x.  A )  +  C )  < 
( ( T  x.  A )  +  T
)
61nnrei 8753 . . . . . . 7  |-  T  e.  RR
76recni 7802 . . . . . 6  |-  T  e.  CC
82nn0rei 9012 . . . . . . 7  |-  A  e.  RR
98recni 7802 . . . . . 6  |-  A  e.  CC
10 ax-1cn 7737 . . . . . 6  |-  1  e.  CC
117, 9, 10adddii 7800 . . . . 5  |-  ( T  x.  ( A  + 
1 ) )  =  ( ( T  x.  A )  +  ( T  x.  1 ) )
127mulid1i 7792 . . . . . 6  |-  ( T  x.  1 )  =  T
1312oveq2i 5793 . . . . 5  |-  ( ( T  x.  A )  +  ( T  x.  1 ) )  =  ( ( T  x.  A )  +  T
)
1411, 13eqtri 2161 . . . 4  |-  ( T  x.  ( A  + 
1 ) )  =  ( ( T  x.  A )  +  T
)
155, 14breqtrri 3963 . . 3  |-  ( ( T  x.  A )  +  C )  < 
( T  x.  ( A  +  1 ) )
16 numltc.6 . . . . 5  |-  A  < 
B
17 numlt.3 . . . . . 6  |-  B  e. 
NN0
18 nn0ltp1le 9140 . . . . . 6  |-  ( ( A  e.  NN0  /\  B  e.  NN0 )  -> 
( A  <  B  <->  ( A  +  1 )  <_  B ) )
192, 17, 18mp2an 423 . . . . 5  |-  ( A  <  B  <->  ( A  +  1 )  <_  B )
2016, 19mpbi 144 . . . 4  |-  ( A  +  1 )  <_  B
211nngt0i 8774 . . . . 5  |-  0  <  T
22 peano2re 7922 . . . . . . 7  |-  ( A  e.  RR  ->  ( A  +  1 )  e.  RR )
238, 22ax-mp 5 . . . . . 6  |-  ( A  +  1 )  e.  RR
2417nn0rei 9012 . . . . . 6  |-  B  e.  RR
2523, 24, 6lemul2i 8707 . . . . 5  |-  ( 0  <  T  ->  (
( A  +  1 )  <_  B  <->  ( T  x.  ( A  +  1 ) )  <_  ( T  x.  B )
) )
2621, 25ax-mp 5 . . . 4  |-  ( ( A  +  1 )  <_  B  <->  ( T  x.  ( A  +  1 ) )  <_  ( T  x.  B )
)
2720, 26mpbi 144 . . 3  |-  ( T  x.  ( A  + 
1 ) )  <_ 
( T  x.  B
)
286, 8remulcli 7804 . . . . 5  |-  ( T  x.  A )  e.  RR
293nn0rei 9012 . . . . 5  |-  C  e.  RR
3028, 29readdcli 7803 . . . 4  |-  ( ( T  x.  A )  +  C )  e.  RR
316, 23remulcli 7804 . . . 4  |-  ( T  x.  ( A  + 
1 ) )  e.  RR
326, 24remulcli 7804 . . . 4  |-  ( T  x.  B )  e.  RR
3330, 31, 32ltletri 7894 . . 3  |-  ( ( ( ( T  x.  A )  +  C
)  <  ( T  x.  ( A  +  1 ) )  /\  ( T  x.  ( A  +  1 ) )  <_  ( T  x.  B ) )  -> 
( ( T  x.  A )  +  C
)  <  ( T  x.  B ) )
3415, 27, 33mp2an 423 . 2  |-  ( ( T  x.  A )  +  C )  < 
( T  x.  B
)
35 numltc.4 . . 3  |-  D  e. 
NN0
3632, 35nn0addge1i 9049 . 2  |-  ( T  x.  B )  <_ 
( ( T  x.  B )  +  D
)
3735nn0rei 9012 . . . 4  |-  D  e.  RR
3832, 37readdcli 7803 . . 3  |-  ( ( T  x.  B )  +  D )  e.  RR
3930, 32, 38ltletri 7894 . 2  |-  ( ( ( ( T  x.  A )  +  C
)  <  ( T  x.  B )  /\  ( T  x.  B )  <_  ( ( T  x.  B )  +  D
) )  ->  (
( T  x.  A
)  +  C )  <  ( ( T  x.  B )  +  D ) )
4034, 36, 39mp2an 423 1  |-  ( ( T  x.  A )  +  C )  < 
( ( T  x.  B )  +  D
)
Colors of variables: wff set class
Syntax hints:    <-> wb 104    e. wcel 1481   class class class wbr 3937  (class class class)co 5782   RRcr 7643   0cc0 7644   1c1 7645    + caddc 7647    x. cmul 7649    < clt 7824    <_ cle 7825   NNcn 8744   NN0cn0 9001
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 1424  ax-7 1425  ax-gen 1426  ax-ie1 1470  ax-ie2 1471  ax-8 1483  ax-10 1484  ax-11 1485  ax-i12 1486  ax-bndl 1487  ax-4 1488  ax-13 1492  ax-14 1493  ax-17 1507  ax-i9 1511  ax-ial 1515  ax-i5r 1516  ax-ext 2122  ax-sep 4054  ax-pow 4106  ax-pr 4139  ax-un 4363  ax-setind 4460  ax-cnex 7735  ax-resscn 7736  ax-1cn 7737  ax-1re 7738  ax-icn 7739  ax-addcl 7740  ax-addrcl 7741  ax-mulcl 7742  ax-mulrcl 7743  ax-addcom 7744  ax-mulcom 7745  ax-addass 7746  ax-mulass 7747  ax-distr 7748  ax-i2m1 7749  ax-0lt1 7750  ax-1rid 7751  ax-0id 7752  ax-rnegex 7753  ax-precex 7754  ax-cnre 7755  ax-pre-ltirr 7756  ax-pre-ltwlin 7757  ax-pre-lttrn 7758  ax-pre-ltadd 7760  ax-pre-mulgt0 7761
This theorem depends on definitions:  df-bi 116  df-3or 964  df-3an 965  df-tru 1335  df-fal 1338  df-nf 1438  df-sb 1737  df-eu 2003  df-mo 2004  df-clab 2127  df-cleq 2133  df-clel 2136  df-nfc 2271  df-ne 2310  df-nel 2405  df-ral 2422  df-rex 2423  df-reu 2424  df-rab 2426  df-v 2691  df-sbc 2914  df-dif 3078  df-un 3080  df-in 3082  df-ss 3089  df-pw 3517  df-sn 3538  df-pr 3539  df-op 3541  df-uni 3745  df-int 3780  df-br 3938  df-opab 3998  df-id 4223  df-xp 4553  df-rel 4554  df-cnv 4555  df-co 4556  df-dm 4557  df-iota 5096  df-fun 5133  df-fv 5139  df-riota 5738  df-ov 5785  df-oprab 5786  df-mpo 5787  df-pnf 7826  df-mnf 7827  df-xr 7828  df-ltxr 7829  df-le 7830  df-sub 7959  df-neg 7960  df-inn 8745  df-n0 9002  df-z 9079
This theorem is referenced by:  decltc  9234  numlti  9242
  Copyright terms: Public domain W3C validator