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Theorem prsrriota 7848
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 7843 . . 3  |-  ( ( A  e.  R.  /\  0R  <R  A )  ->  E! y  e.  P.  [
<. ( y  +P.  1P ) ,  1P >. ]  ~R  =  A )
2 reurex 2712 . . 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 531 . . . . 5  |-  ( ( ( A  e.  R.  /\  0R  <R  A )  /\  ( y  e.  P.  /\ 
[ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  =  A ) )  ->  [ <. ( y  +P.  1P ) ,  1P >. ]  ~R  =  A )
5 simprl 529 . . . . . 6  |-  ( ( ( A  e.  R.  /\  0R  <R  A )  /\  ( y  e.  P.  /\ 
[ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  =  A ) )  ->  y  e.  P. )
6 srpospr 7843 . . . . . . 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 5925 . . . . . . . . . 10  |-  ( x  =  y  ->  (
x  +P.  1P )  =  ( y  +P. 
1P ) )
98opeq1d 3810 . . . . . . . . 9  |-  ( x  =  y  ->  <. (
x  +P.  1P ) ,  1P >.  =  <. ( y  +P.  1P ) ,  1P >. )
109eceq1d 6623 . . . . . . . 8  |-  ( x  =  y  ->  [ <. ( x  +P.  1P ) ,  1P >. ]  ~R  =  [ <. ( y  +P. 
1P ) ,  1P >. ]  ~R  )
1110eqeq1d 2202 . . . . . . 7  |-  ( x  =  y  ->  ( [ <. ( x  +P.  1P ) ,  1P >. ]  ~R  =  A  <->  [ <. (
y  +P.  1P ) ,  1P >. ]  ~R  =  A ) )
1211riota2 5896 . . . . . 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 411 . . . . 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 5925 . . . . . 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 3810 . . . . 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 6623 . . . 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 2226 . 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 2616 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
Syntax hints:    -> wi 4    /\ wa 104    <-> wb 105    = wceq 1364    e. wcel 2164   E.wrex 2473   E!wreu 2474   <.cop 3621   class class class wbr 4029   iota_crio 5872  (class class class)co 5918   [cec 6585   P.cnp 7351   1Pc1p 7352    +P. cpp 7353    ~R cer 7356   R.cnr 7357   0Rc0r 7358    <R cltr 7363
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 615  ax-in2 616  ax-io 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-13 2166  ax-14 2167  ax-ext 2175  ax-coll 4144  ax-sep 4147  ax-nul 4155  ax-pow 4203  ax-pr 4238  ax-un 4464  ax-setind 4569  ax-iinf 4620
This theorem depends on definitions:  df-bi 117  df-dc 836  df-3or 981  df-3an 982  df-tru 1367  df-fal 1370  df-nf 1472  df-sb 1774  df-eu 2045  df-mo 2046  df-clab 2180  df-cleq 2186  df-clel 2189  df-nfc 2325  df-ne 2365  df-ral 2477  df-rex 2478  df-reu 2479  df-rmo 2480  df-rab 2481  df-v 2762  df-sbc 2986  df-csb 3081  df-dif 3155  df-un 3157  df-in 3159  df-ss 3166  df-nul 3447  df-pw 3603  df-sn 3624  df-pr 3625  df-op 3627  df-uni 3836  df-int 3871  df-iun 3914  df-br 4030  df-opab 4091  df-mpt 4092  df-tr 4128  df-eprel 4320  df-id 4324  df-po 4327  df-iso 4328  df-iord 4397  df-on 4399  df-suc 4402  df-iom 4623  df-xp 4665  df-rel 4666  df-cnv 4667  df-co 4668  df-dm 4669  df-rn 4670  df-res 4671  df-ima 4672  df-iota 5215  df-fun 5256  df-fn 5257  df-f 5258  df-f1 5259  df-fo 5260  df-f1o 5261  df-fv 5262  df-riota 5873  df-ov 5921  df-oprab 5922  df-mpo 5923  df-1st 6193  df-2nd 6194  df-recs 6358  df-irdg 6423  df-1o 6469  df-2o 6470  df-oadd 6473  df-omul 6474  df-er 6587  df-ec 6589  df-qs 6593  df-ni 7364  df-pli 7365  df-mi 7366  df-lti 7367  df-plpq 7404  df-mpq 7405  df-enq 7407  df-nqqs 7408  df-plqqs 7409  df-mqqs 7410  df-1nqqs 7411  df-rq 7412  df-ltnqqs 7413  df-enq0 7484  df-nq0 7485  df-0nq0 7486  df-plq0 7487  df-mq0 7488  df-inp 7526  df-i1p 7527  df-iplp 7528  df-iltp 7530  df-enr 7786  df-nr 7787  df-ltr 7790  df-0r 7791
This theorem is referenced by:  caucvgsrlemfv  7851  caucvgsrlemgt1  7855
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