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Theorem nn0opth2d 10940
Description: An ordered pair theorem for nonnegative integers. Theorem 17.3 of [Quine] p. 124. See comments for nn0opthd 10939. (Contributed by Jim Kingdon, 31-Oct-2021.)
Hypotheses
Ref Expression
nn0opthd.1  |-  ( ph  ->  A  e.  NN0 )
nn0opthd.2  |-  ( ph  ->  B  e.  NN0 )
nn0opthd.3  |-  ( ph  ->  C  e.  NN0 )
nn0opthd.4  |-  ( ph  ->  D  e.  NN0 )
Assertion
Ref Expression
nn0opth2d  |-  ( ph  ->  ( ( ( ( A  +  B ) ^ 2 )  +  B )  =  ( ( ( C  +  D ) ^ 2 )  +  D )  <-> 
( A  =  C  /\  B  =  D ) ) )

Proof of Theorem nn0opth2d
StepHypRef Expression
1 nn0opthd.1 . . . . . . 7  |-  ( ph  ->  A  e.  NN0 )
2 nn0opthd.2 . . . . . . 7  |-  ( ph  ->  B  e.  NN0 )
31, 2nn0addcld 9422 . . . . . 6  |-  ( ph  ->  ( A  +  B
)  e.  NN0 )
43nn0cnd 9420 . . . . 5  |-  ( ph  ->  ( A  +  B
)  e.  CC )
54sqvald 10887 . . . 4  |-  ( ph  ->  ( ( A  +  B ) ^ 2 )  =  ( ( A  +  B )  x.  ( A  +  B ) ) )
65oveq1d 6015 . . 3  |-  ( ph  ->  ( ( ( A  +  B ) ^
2 )  +  B
)  =  ( ( ( A  +  B
)  x.  ( A  +  B ) )  +  B ) )
7 nn0opthd.3 . . . . . . 7  |-  ( ph  ->  C  e.  NN0 )
8 nn0opthd.4 . . . . . . 7  |-  ( ph  ->  D  e.  NN0 )
97, 8nn0addcld 9422 . . . . . 6  |-  ( ph  ->  ( C  +  D
)  e.  NN0 )
109nn0cnd 9420 . . . . 5  |-  ( ph  ->  ( C  +  D
)  e.  CC )
1110sqvald 10887 . . . 4  |-  ( ph  ->  ( ( C  +  D ) ^ 2 )  =  ( ( C  +  D )  x.  ( C  +  D ) ) )
1211oveq1d 6015 . . 3  |-  ( ph  ->  ( ( ( C  +  D ) ^
2 )  +  D
)  =  ( ( ( C  +  D
)  x.  ( C  +  D ) )  +  D ) )
136, 12eqeq12d 2244 . 2  |-  ( ph  ->  ( ( ( ( A  +  B ) ^ 2 )  +  B )  =  ( ( ( C  +  D ) ^ 2 )  +  D )  <-> 
( ( ( A  +  B )  x.  ( A  +  B
) )  +  B
)  =  ( ( ( C  +  D
)  x.  ( C  +  D ) )  +  D ) ) )
141, 2, 7, 8nn0opthd 10939 . 2  |-  ( ph  ->  ( ( ( ( A  +  B )  x.  ( A  +  B ) )  +  B )  =  ( ( ( C  +  D )  x.  ( C  +  D )
)  +  D )  <-> 
( A  =  C  /\  B  =  D ) ) )
1513, 14bitrd 188 1  |-  ( ph  ->  ( ( ( ( A  +  B ) ^ 2 )  +  B )  =  ( ( ( C  +  D ) ^ 2 )  +  D )  <-> 
( A  =  C  /\  B  =  D ) ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 104    <-> wb 105    = wceq 1395    e. wcel 2200  (class class class)co 6000    + caddc 7998    x. cmul 8000   2c2 9157   NN0cn0 9365   ^cexp 10755
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 617  ax-in2 618  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-coll 4198  ax-sep 4201  ax-nul 4209  ax-pow 4257  ax-pr 4292  ax-un 4523  ax-setind 4628  ax-iinf 4679  ax-cnex 8086  ax-resscn 8087  ax-1cn 8088  ax-1re 8089  ax-icn 8090  ax-addcl 8091  ax-addrcl 8092  ax-mulcl 8093  ax-mulrcl 8094  ax-addcom 8095  ax-mulcom 8096  ax-addass 8097  ax-mulass 8098  ax-distr 8099  ax-i2m1 8100  ax-0lt1 8101  ax-1rid 8102  ax-0id 8103  ax-rnegex 8104  ax-precex 8105  ax-cnre 8106  ax-pre-ltirr 8107  ax-pre-ltwlin 8108  ax-pre-lttrn 8109  ax-pre-apti 8110  ax-pre-ltadd 8111  ax-pre-mulgt0 8112  ax-pre-mulext 8113
This theorem depends on definitions:  df-bi 117  df-dc 840  df-3or 1003  df-3an 1004  df-tru 1398  df-fal 1401  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ne 2401  df-nel 2496  df-ral 2513  df-rex 2514  df-reu 2515  df-rmo 2516  df-rab 2517  df-v 2801  df-sbc 3029  df-csb 3125  df-dif 3199  df-un 3201  df-in 3203  df-ss 3210  df-nul 3492  df-if 3603  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3888  df-int 3923  df-iun 3966  df-br 4083  df-opab 4145  df-mpt 4146  df-tr 4182  df-id 4383  df-po 4386  df-iso 4387  df-iord 4456  df-on 4458  df-ilim 4459  df-suc 4461  df-iom 4682  df-xp 4724  df-rel 4725  df-cnv 4726  df-co 4727  df-dm 4728  df-rn 4729  df-res 4730  df-ima 4731  df-iota 5277  df-fun 5319  df-fn 5320  df-f 5321  df-f1 5322  df-fo 5323  df-f1o 5324  df-fv 5325  df-riota 5953  df-ov 6003  df-oprab 6004  df-mpo 6005  df-1st 6284  df-2nd 6285  df-recs 6449  df-frec 6535  df-pnf 8179  df-mnf 8180  df-xr 8181  df-ltxr 8182  df-le 8183  df-sub 8315  df-neg 8316  df-reap 8718  df-ap 8725  df-div 8816  df-inn 9107  df-2 9165  df-n0 9366  df-z 9443  df-uz 9719  df-seqfrec 10665  df-exp 10756
This theorem is referenced by:  nn0opth2  10941
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