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Theorem prsrriota 8155
Description: Mapping a restricted iota from a positive real to a signed real. (Contributed by Jim Kingdon, 29-Jun-2021.)
Assertion
Ref Expression
prsrriota  |-  ( ( A  e.  R.  /\  0R  <R  A )  ->  [ <. ( ( iota_ x  e.  P.  [ <. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  +P.  1P ) ,  1P >. ]  ~R  =  A )
Distinct variable group:    x, A

Proof of Theorem prsrriota
Dummy variable  y is distinct from all other variables.
StepHypRef Expression
1 srpospr 8150 . . 3  |-  ( ( A  e.  R.  /\  0R  <R  A )  ->  E! y  e.  P.  [
<. ( y  +P.  1P ) ,  1P >. ]  ~R  =  A )
2 reurex 2771 . . 3  |-  ( E! y  e.  P.  [ <. ( y  +P.  1P ) ,  1P >. ]  ~R  =  A  ->  E. y  e.  P.  [ <. (
y  +P.  1P ) ,  1P >. ]  ~R  =  A )
31, 2syl 14 . 2  |-  ( ( A  e.  R.  /\  0R  <R  A )  ->  E. y  e.  P.  [
<. ( y  +P.  1P ) ,  1P >. ]  ~R  =  A )
4 simprr 537 . . . . 5  |-  ( ( ( A  e.  R.  /\  0R  <R  A )  /\  ( y  e.  P.  /\ 
[ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  =  A ) )  ->  [ <. ( y  +P.  1P ) ,  1P >. ]  ~R  =  A )
5 simprl 535 . . . . . 6  |-  ( ( ( A  e.  R.  /\  0R  <R  A )  /\  ( y  e.  P.  /\ 
[ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  =  A ) )  ->  y  e.  P. )
6 srpospr 8150 . . . . . . 7  |-  ( ( A  e.  R.  /\  0R  <R  A )  ->  E! x  e.  P.  [
<. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )
76adantr 276 . . . . . 6  |-  ( ( ( A  e.  R.  /\  0R  <R  A )  /\  ( y  e.  P.  /\ 
[ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  =  A ) )  ->  E! x  e.  P.  [ <. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )
8 oveq1 6092 . . . . . . . . . 10  |-  ( x  =  y  ->  (
x  +P.  1P )  =  ( y  +P. 
1P ) )
98opeq1d 3910 . . . . . . . . 9  |-  ( x  =  y  ->  <. (
x  +P.  1P ) ,  1P >.  =  <. ( y  +P.  1P ) ,  1P >. )
109eceq1d 6843 . . . . . . . 8  |-  ( x  =  y  ->  [ <. ( x  +P.  1P ) ,  1P >. ]  ~R  =  [ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  )
1110eqeq1d 2247 . . . . . . 7  |-  ( x  =  y  ->  ( [ <. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A  <->  [ <. (
y  +P.  1P ) ,  1P >. ]  ~R  =  A ) )
1211riota2 6062 . . . . . 6  |-  ( ( y  e.  P.  /\  E! x  e.  P.  [
<. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  ->  ( [ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  =  A  <-> 
( iota_ x  e.  P.  [
<. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  =  y ) )
135, 7, 12syl2anc 415 . . . . 5  |-  ( ( ( A  e.  R.  /\  0R  <R  A )  /\  ( y  e.  P.  /\ 
[ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  =  A ) )  ->  ( [ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  =  A  <-> 
( iota_ x  e.  P.  [
<. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  =  y ) )
144, 13mpbid 147 . . . 4  |-  ( ( ( A  e.  R.  /\  0R  <R  A )  /\  ( y  e.  P.  /\ 
[ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  =  A ) )  ->  ( iota_ x  e.  P.  [ <. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  =  y )
15 oveq1 6092 . . . . . 6  |-  ( (
iota_ x  e.  P.  [
<. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  =  y  ->  ( ( iota_ x  e.  P.  [ <. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  +P.  1P )  =  ( y  +P.  1P ) )
1615opeq1d 3910 . . . . 5  |-  ( (
iota_ x  e.  P.  [
<. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  =  y  ->  <. ( ( iota_ x  e.  P.  [ <. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  +P.  1P ) ,  1P >.  =  <. ( y  +P.  1P ) ,  1P >. )
1716eceq1d 6843 . . . 4  |-  ( (
iota_ x  e.  P.  [
<. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  =  y  ->  [ <. (
( iota_ x  e.  P.  [
<. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  +P.  1P ) ,  1P >. ]  ~R  =  [ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  )
1814, 17syl 14 . . 3  |-  ( ( ( A  e.  R.  /\  0R  <R  A )  /\  ( y  e.  P.  /\ 
[ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  =  A ) )  ->  [ <. ( ( iota_ x  e.  P.  [
<. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  +P.  1P ) ,  1P >. ]  ~R  =  [ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  )
1918, 4eqtrd 2271 . 2  |-  ( ( ( A  e.  R.  /\  0R  <R  A )  /\  ( y  e.  P.  /\ 
[ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  =  A ) )  ->  [ <. ( ( iota_ x  e.  P.  [
<. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  +P.  1P ) ,  1P >. ]  ~R  =  A )
203, 19rexlimddv 2673 1  |-  ( ( A  e.  R.  /\  0R  <R  A )  ->  [ <. ( ( iota_ x  e.  P.  [ <. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A )  +P.  1P ) ,  1P >. ]  ~R  =  A )
Colors of variables:    wff set class
This proof depends on syntax axioms:    -> wi 4    /\ wa 104    <-> wb 105    = wceq 1402    e. wcel 2209   E.wrex 2529   E!wreu 2530   <.cop 3712   class class class wbr 4130   iota_crio 6037  (class class class)co 6085   [cec 6805   P.cnp 7658   1Pc1p 7659    +P. cpp 7660    ~R cer 7663   R.cnr 7664   0Rc0r 7665    <R cltr 7670
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-coll 4246  ax-sep 4249  ax-nul 4259  ax-pow 4311  ax-pr 4346  ax-un 4578  ax-setind 4684  ax-iinf 4735
This proof depends on definitions:  df-bi 117  df-dc 847  df-3or 1010  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-ral 2533  df-rex 2534  df-reu 2535  df-rmo 2536  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-int 3971  df-iun 4014  df-br 4131  df-opab 4193  df-mpt 4194  df-tr 4230  df-eprel 4434  df-id 4438  df-po 4441  df-iso 4442  df-iord 4511  df-on 4513  df-suc 4516  df-iom 4738  df-xp 4780  df-rel 4781  df-cnv 4782  df-co 4783  df-dm 4784  df-rn 4785  df-res 4786  df-ima 4787  df-iota 5337  df-fun 5379  df-fn 5380  df-f 5381  df-f1 5382  df-fo 5383  df-f1o 5384  df-fv 5385  df-riota 6038  df-ov 6088  df-oprab 6089  df-mpo 6090  df-1st 6374  df-2nd 6375  df-recs 6576  df-irdg 6641  df-1o 6687  df-2o 6688  df-oadd 6691  df-omul 6692  df-er 6807  df-ec 6809  df-qs 6813  df-ni 7671  df-pli 7672  df-mi 7673  df-lti 7674  df-plpq 7711  df-mpq 7712  df-enq 7714  df-nqqs 7715  df-plqqs 7716  df-mqqs 7717  df-1nqqs 7718  df-rq 7719  df-ltnqqs 7720  df-enq0 7791  df-nq0 7792  df-0nq0 7793  df-plq0 7794  df-mq0 7795  df-inp 7833  df-i1p 7834  df-iplp 7835  df-iltp 7837  df-enr 8093  df-nr 8094  df-ltr 8097  df-0r 8098
This theorem is used by:  caucvgsrlemfv  8158  caucvgsrlemgt1  8162
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