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Theorem addpipqqs 7332
Description: Addition of positive fractions in terms of positive integers. (Contributed by NM, 28-Aug-1995.)
Assertion
Ref Expression
addpipqqs  |-  ( ( ( A  e.  N.  /\  B  e.  N. )  /\  ( C  e.  N.  /\  D  e.  N. )
)  ->  ( [ <. A ,  B >. ]  ~Q  +Q  [ <. C ,  D >. ]  ~Q  )  =  [ <. (
( A  .N  D
)  +N  ( B  .N  C ) ) ,  ( B  .N  D ) >. ]  ~Q  )

Proof of Theorem addpipqqs
Dummy variables  x  y  z  w  v  u  t  s  f  g  h  a  b  c  d are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 addpipqqslem 7331 . 2  |-  ( ( ( A  e.  N.  /\  B  e.  N. )  /\  ( C  e.  N.  /\  D  e.  N. )
)  ->  <. ( ( A  .N  D )  +N  ( B  .N  C ) ) ,  ( B  .N  D
) >.  e.  ( N. 
X.  N. ) )
2 addpipqqslem 7331 . 2  |-  ( ( ( a  e.  N.  /\  b  e.  N. )  /\  ( g  e.  N.  /\  h  e.  N. )
)  ->  <. ( ( a  .N  h )  +N  ( b  .N  g ) ) ,  ( b  .N  h
) >.  e.  ( N. 
X.  N. ) )
3 addpipqqslem 7331 . 2  |-  ( ( ( c  e.  N.  /\  d  e.  N. )  /\  ( t  e.  N.  /\  s  e.  N. )
)  ->  <. ( ( c  .N  s )  +N  ( d  .N  t ) ) ,  ( d  .N  s
) >.  e.  ( N. 
X.  N. ) )
4 enqex 7322 . 2  |-  ~Q  e.  _V
5 enqer 7320 . 2  |-  ~Q  Er  ( N.  X.  N. )
6 df-enq 7309 . 2  |-  ~Q  =  { <. x ,  y
>.  |  ( (
x  e.  ( N. 
X.  N. )  /\  y  e.  ( N.  X.  N. ) )  /\  E. z E. w E. v E. u ( ( x  =  <. z ,  w >.  /\  y  =  <. v ,  u >. )  /\  ( z  .N  u
)  =  ( w  .N  v ) ) ) }
7 oveq12 5862 . . . 4  |-  ( ( z  =  a  /\  u  =  d )  ->  ( z  .N  u
)  =  ( a  .N  d ) )
8 oveq12 5862 . . . 4  |-  ( ( w  =  b  /\  v  =  c )  ->  ( w  .N  v
)  =  ( b  .N  c ) )
97, 8eqeqan12d 2186 . . 3  |-  ( ( ( z  =  a  /\  u  =  d )  /\  ( w  =  b  /\  v  =  c ) )  ->  ( ( z  .N  u )  =  ( w  .N  v
)  <->  ( a  .N  d )  =  ( b  .N  c ) ) )
109an42s 584 . 2  |-  ( ( ( z  =  a  /\  w  =  b )  /\  ( v  =  c  /\  u  =  d ) )  ->  ( ( z  .N  u )  =  ( w  .N  v
)  <->  ( a  .N  d )  =  ( b  .N  c ) ) )
11 oveq12 5862 . . . 4  |-  ( ( z  =  g  /\  u  =  s )  ->  ( z  .N  u
)  =  ( g  .N  s ) )
12 oveq12 5862 . . . 4  |-  ( ( w  =  h  /\  v  =  t )  ->  ( w  .N  v
)  =  ( h  .N  t ) )
1311, 12eqeqan12d 2186 . . 3  |-  ( ( ( z  =  g  /\  u  =  s )  /\  ( w  =  h  /\  v  =  t ) )  ->  ( ( z  .N  u )  =  ( w  .N  v
)  <->  ( g  .N  s )  =  ( h  .N  t ) ) )
1413an42s 584 . 2  |-  ( ( ( z  =  g  /\  w  =  h )  /\  ( v  =  t  /\  u  =  s ) )  ->  ( ( z  .N  u )  =  ( w  .N  v
)  <->  ( g  .N  s )  =  ( h  .N  t ) ) )
15 dfplpq2 7316 . 2  |-  +pQ  =  { <. <. x ,  y
>. ,  z >.  |  ( ( x  e.  ( N.  X.  N. )  /\  y  e.  ( N.  X.  N. )
)  /\  E. w E. v E. u E. f ( ( x  =  <. w ,  v
>.  /\  y  =  <. u ,  f >. )  /\  z  =  <. ( ( w  .N  f
)  +N  ( v  .N  u ) ) ,  ( v  .N  f ) >. )
) }
16 oveq12 5862 . . . . 5  |-  ( ( w  =  a  /\  f  =  h )  ->  ( w  .N  f
)  =  ( a  .N  h ) )
17 oveq12 5862 . . . . 5  |-  ( ( v  =  b  /\  u  =  g )  ->  ( v  .N  u
)  =  ( b  .N  g ) )
1816, 17oveqan12d 5872 . . . 4  |-  ( ( ( w  =  a  /\  f  =  h )  /\  ( v  =  b  /\  u  =  g ) )  ->  ( ( w  .N  f )  +N  ( v  .N  u
) )  =  ( ( a  .N  h
)  +N  ( b  .N  g ) ) )
1918an42s 584 . . 3  |-  ( ( ( w  =  a  /\  v  =  b )  /\  ( u  =  g  /\  f  =  h ) )  -> 
( ( w  .N  f )  +N  (
v  .N  u ) )  =  ( ( a  .N  h )  +N  ( b  .N  g ) ) )
20 oveq12 5862 . . . 4  |-  ( ( v  =  b  /\  f  =  h )  ->  ( v  .N  f
)  =  ( b  .N  h ) )
2120ad2ant2l 505 . . 3  |-  ( ( ( w  =  a  /\  v  =  b )  /\  ( u  =  g  /\  f  =  h ) )  -> 
( v  .N  f
)  =  ( b  .N  h ) )
2219, 21opeq12d 3773 . 2  |-  ( ( ( w  =  a  /\  v  =  b )  /\  ( u  =  g  /\  f  =  h ) )  ->  <. ( ( w  .N  f )  +N  (
v  .N  u ) ) ,  ( v  .N  f ) >.  =  <. ( ( a  .N  h )  +N  ( b  .N  g
) ) ,  ( b  .N  h )
>. )
23 oveq12 5862 . . . . 5  |-  ( ( w  =  c  /\  f  =  s )  ->  ( w  .N  f
)  =  ( c  .N  s ) )
24 oveq12 5862 . . . . 5  |-  ( ( v  =  d  /\  u  =  t )  ->  ( v  .N  u
)  =  ( d  .N  t ) )
2523, 24oveqan12d 5872 . . . 4  |-  ( ( ( w  =  c  /\  f  =  s )  /\  ( v  =  d  /\  u  =  t ) )  ->  ( ( w  .N  f )  +N  ( v  .N  u
) )  =  ( ( c  .N  s
)  +N  ( d  .N  t ) ) )
2625an42s 584 . . 3  |-  ( ( ( w  =  c  /\  v  =  d )  /\  ( u  =  t  /\  f  =  s ) )  ->  ( ( w  .N  f )  +N  ( v  .N  u
) )  =  ( ( c  .N  s
)  +N  ( d  .N  t ) ) )
27 oveq12 5862 . . . 4  |-  ( ( v  =  d  /\  f  =  s )  ->  ( v  .N  f
)  =  ( d  .N  s ) )
2827ad2ant2l 505 . . 3  |-  ( ( ( w  =  c  /\  v  =  d )  /\  ( u  =  t  /\  f  =  s ) )  ->  ( v  .N  f )  =  ( d  .N  s ) )
2926, 28opeq12d 3773 . 2  |-  ( ( ( w  =  c  /\  v  =  d )  /\  ( u  =  t  /\  f  =  s ) )  ->  <. ( ( w  .N  f )  +N  ( v  .N  u
) ) ,  ( v  .N  f )
>.  =  <. ( ( c  .N  s )  +N  ( d  .N  t ) ) ,  ( d  .N  s
) >. )
30 oveq12 5862 . . . . 5  |-  ( ( w  =  A  /\  f  =  D )  ->  ( w  .N  f
)  =  ( A  .N  D ) )
31 oveq12 5862 . . . . 5  |-  ( ( v  =  B  /\  u  =  C )  ->  ( v  .N  u
)  =  ( B  .N  C ) )
3230, 31oveqan12d 5872 . . . 4  |-  ( ( ( w  =  A  /\  f  =  D )  /\  ( v  =  B  /\  u  =  C ) )  -> 
( ( w  .N  f )  +N  (
v  .N  u ) )  =  ( ( A  .N  D )  +N  ( B  .N  C ) ) )
3332an42s 584 . . 3  |-  ( ( ( w  =  A  /\  v  =  B )  /\  ( u  =  C  /\  f  =  D ) )  -> 
( ( w  .N  f )  +N  (
v  .N  u ) )  =  ( ( A  .N  D )  +N  ( B  .N  C ) ) )
34 oveq12 5862 . . . 4  |-  ( ( v  =  B  /\  f  =  D )  ->  ( v  .N  f
)  =  ( B  .N  D ) )
3534ad2ant2l 505 . . 3  |-  ( ( ( w  =  A  /\  v  =  B )  /\  ( u  =  C  /\  f  =  D ) )  -> 
( v  .N  f
)  =  ( B  .N  D ) )
3633, 35opeq12d 3773 . 2  |-  ( ( ( w  =  A  /\  v  =  B )  /\  ( u  =  C  /\  f  =  D ) )  ->  <. ( ( w  .N  f )  +N  (
v  .N  u ) ) ,  ( v  .N  f ) >.  =  <. ( ( A  .N  D )  +N  ( B  .N  C
) ) ,  ( B  .N  D )
>. )
37 df-plqqs 7311 . 2  |-  +Q  =  { <. <. x ,  y
>. ,  z >.  |  ( ( x  e. 
Q.  /\  y  e.  Q. )  /\  E. a E. b E. c E. d ( ( x  =  [ <. a ,  b >. ]  ~Q  /\  y  =  [ <. c ,  d >. ]  ~Q  )  /\  z  =  [
( <. a ,  b
>.  +pQ  <. c ,  d
>. ) ]  ~Q  )
) }
38 df-nqqs 7310 . 2  |-  Q.  =  ( ( N.  X.  N. ) /.  ~Q  )
39 addcmpblnq 7329 . 2  |-  ( ( ( ( a  e. 
N.  /\  b  e.  N. )  /\  (
c  e.  N.  /\  d  e.  N. )
)  /\  ( (
g  e.  N.  /\  h  e.  N. )  /\  ( t  e.  N.  /\  s  e.  N. )
) )  ->  (
( ( a  .N  d )  =  ( b  .N  c )  /\  ( g  .N  s )  =  ( h  .N  t ) )  ->  <. ( ( a  .N  h )  +N  ( b  .N  g ) ) ,  ( b  .N  h
) >.  ~Q  <. ( ( c  .N  s )  +N  ( d  .N  t ) ) ,  ( d  .N  s
) >. ) )
401, 2, 3, 4, 5, 6, 10, 14, 15, 22, 29, 36, 37, 38, 39oviec 6619 1  |-  ( ( ( A  e.  N.  /\  B  e.  N. )  /\  ( C  e.  N.  /\  D  e.  N. )
)  ->  ( [ <. A ,  B >. ]  ~Q  +Q  [ <. C ,  D >. ]  ~Q  )  =  [ <. (
( A  .N  D
)  +N  ( B  .N  C ) ) ,  ( B  .N  D ) >. ]  ~Q  )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 103    <-> wb 104    = wceq 1348    e. wcel 2141   <.cop 3586  (class class class)co 5853   [cec 6511   N.cnpi 7234    +N cpli 7235    .N cmi 7236    +pQ cplpq 7238    ~Q ceq 7241   Q.cnq 7242    +Q cplq 7244
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
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-ral 2453  df-rex 2454  df-reu 2455  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-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-iord 4351  df-on 4353  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-ov 5856  df-oprab 5857  df-mpo 5858  df-1st 6119  df-2nd 6120  df-recs 6284  df-irdg 6349  df-oadd 6399  df-omul 6400  df-er 6513  df-ec 6515  df-qs 6519  df-ni 7266  df-pli 7267  df-mi 7268  df-plpq 7306  df-enq 7309  df-nqqs 7310  df-plqqs 7311
This theorem is referenced by:  addclnq  7337  addcomnqg  7343  addassnqg  7344  distrnqg  7349  ltanqg  7362  1lt2nq  7368  ltexnqq  7370  nqnq0a  7416  addpinq1  7426
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