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Theorem gtiso 27384
Description: Two ways to write a strictly decreasing function on the reals. (Contributed by Thierry Arnoux, 6-Apr-2017.)
Assertion
Ref Expression
gtiso  |-  ( ( A  C_  RR*  /\  B  C_ 
RR* )  ->  ( F  Isom  <  ,  `'  <  ( A ,  B
)  <->  F  Isom  <_  ,  `'  <_  ( A ,  B
) ) )

Proof of Theorem gtiso
StepHypRef Expression
1 eqid 2441 . . . . 5  |-  ( ( A  X.  A ) 
\  <  )  =  ( ( A  X.  A )  \  <  )
2 eqid 2441 . . . . 5  |-  ( ( B  X.  B ) 
\  `'  <  )  =  ( ( B  X.  B )  \  `'  <  )
31, 2isocnv3 6209 . . . 4  |-  ( F 
Isom  <  ,  `'  <  ( A ,  B )  <-> 
F  Isom  ( ( A  X.  A )  \  <  ) ,  ( ( B  X.  B ) 
\  `'  <  )
( A ,  B
) )
43a1i 11 . . 3  |-  ( ( A  C_  RR*  /\  B  C_ 
RR* )  ->  ( F  Isom  <  ,  `'  <  ( A ,  B
)  <->  F  Isom  ( ( A  X.  A ) 
\  <  ) , 
( ( B  X.  B )  \  `'  <  ) ( A ,  B ) ) )
5 df-le 9632 . . . . . . . . . 10  |-  <_  =  ( ( RR*  X.  RR* )  \  `'  <  )
65cnveqi 5163 . . . . . . . . 9  |-  `'  <_  =  `' ( ( RR*  X. 
RR* )  \  `'  <  )
7 cnvdif 5398 . . . . . . . . 9  |-  `' ( ( RR*  X.  RR* )  \  `'  <  )  =  ( `' ( RR*  X. 
RR* )  \  `' `'  <  )
8 cnvxp 5410 . . . . . . . . . 10  |-  `' (
RR*  X.  RR* )  =  ( RR*  X.  RR* )
9 ltrel 9647 . . . . . . . . . . 11  |-  Rel  <
10 dfrel2 5443 . . . . . . . . . . 11  |-  ( Rel 
< 
<->  `' `'  <  =  < 
)
119, 10mpbi 208 . . . . . . . . . 10  |-  `' `'  <  =  <
128, 11difeq12i 3602 . . . . . . . . 9  |-  ( `' ( RR*  X.  RR* )  \  `' `'  <  )  =  ( ( RR*  X.  RR* )  \  <  )
136, 7, 123eqtri 2474 . . . . . . . 8  |-  `'  <_  =  ( ( RR*  X.  RR* )  \  <  )
1413ineq1i 3678 . . . . . . 7  |-  ( `' 
<_  i^i  ( A  X.  A ) )  =  ( ( ( RR*  X. 
RR* )  \  <  )  i^i  ( A  X.  A ) )
15 indif1 3724 . . . . . . 7  |-  ( ( ( RR*  X.  RR* )  \  <  )  i^i  ( A  X.  A ) )  =  ( ( (
RR*  X.  RR* )  i^i  ( A  X.  A
) )  \  <  )
1614, 15eqtri 2470 . . . . . 6  |-  ( `' 
<_  i^i  ( A  X.  A ) )  =  ( ( ( RR*  X. 
RR* )  i^i  ( A  X.  A ) ) 
\  <  )
17 xpss12 5094 . . . . . . . . 9  |-  ( ( A  C_  RR*  /\  A  C_ 
RR* )  ->  ( A  X.  A )  C_  ( RR*  X.  RR* )
)
1817anidms 645 . . . . . . . 8  |-  ( A 
C_  RR*  ->  ( A  X.  A )  C_  ( RR*  X.  RR* ) )
19 dfss1 3685 . . . . . . . 8  |-  ( ( A  X.  A ) 
C_  ( RR*  X.  RR* ) 
<->  ( ( RR*  X.  RR* )  i^i  ( A  X.  A ) )  =  ( A  X.  A
) )
2018, 19sylib 196 . . . . . . 7  |-  ( A 
C_  RR*  ->  ( ( RR*  X.  RR* )  i^i  ( A  X.  A ) )  =  ( A  X.  A ) )
2120difeq1d 3603 . . . . . 6  |-  ( A 
C_  RR*  ->  ( (
( RR*  X.  RR* )  i^i  ( A  X.  A
) )  \  <  )  =  ( ( A  X.  A )  \  <  ) )
2216, 21syl5req 2495 . . . . 5  |-  ( A 
C_  RR*  ->  ( ( A  X.  A )  \  <  )  =  ( `' 
<_  i^i  ( A  X.  A ) ) )
2322adantr 465 . . . 4  |-  ( ( A  C_  RR*  /\  B  C_ 
RR* )  ->  (
( A  X.  A
)  \  <  )  =  ( `'  <_  i^i  ( A  X.  A
) ) )
24 isoeq2 6197 . . . 4  |-  ( ( ( A  X.  A
)  \  <  )  =  ( `'  <_  i^i  ( A  X.  A
) )  ->  ( F  Isom  ( ( A  X.  A )  \  <  ) ,  ( ( B  X.  B ) 
\  `'  <  )
( A ,  B
)  <->  F  Isom  ( `' 
<_  i^i  ( A  X.  A ) ) ,  ( ( B  X.  B )  \  `'  <  ) ( A ,  B ) ) )
2523, 24syl 16 . . 3  |-  ( ( A  C_  RR*  /\  B  C_ 
RR* )  ->  ( F  Isom  ( ( A  X.  A )  \  <  ) ,  ( ( B  X.  B ) 
\  `'  <  )
( A ,  B
)  <->  F  Isom  ( `' 
<_  i^i  ( A  X.  A ) ) ,  ( ( B  X.  B )  \  `'  <  ) ( A ,  B ) ) )
265ineq1i 3678 . . . . . . 7  |-  (  <_  i^i  ( B  X.  B
) )  =  ( ( ( RR*  X.  RR* )  \  `'  <  )  i^i  ( B  X.  B
) )
27 indif1 3724 . . . . . . 7  |-  ( ( ( RR*  X.  RR* )  \  `'  <  )  i^i  ( B  X.  B
) )  =  ( ( ( RR*  X.  RR* )  i^i  ( B  X.  B ) )  \  `'  <  )
2826, 27eqtri 2470 . . . . . 6  |-  (  <_  i^i  ( B  X.  B
) )  =  ( ( ( RR*  X.  RR* )  i^i  ( B  X.  B ) )  \  `'  <  )
29 xpss12 5094 . . . . . . . . 9  |-  ( ( B  C_  RR*  /\  B  C_ 
RR* )  ->  ( B  X.  B )  C_  ( RR*  X.  RR* )
)
3029anidms 645 . . . . . . . 8  |-  ( B 
C_  RR*  ->  ( B  X.  B )  C_  ( RR*  X.  RR* ) )
31 dfss1 3685 . . . . . . . 8  |-  ( ( B  X.  B ) 
C_  ( RR*  X.  RR* ) 
<->  ( ( RR*  X.  RR* )  i^i  ( B  X.  B ) )  =  ( B  X.  B
) )
3230, 31sylib 196 . . . . . . 7  |-  ( B 
C_  RR*  ->  ( ( RR*  X.  RR* )  i^i  ( B  X.  B ) )  =  ( B  X.  B ) )
3332difeq1d 3603 . . . . . 6  |-  ( B 
C_  RR*  ->  ( (
( RR*  X.  RR* )  i^i  ( B  X.  B
) )  \  `'  <  )  =  ( ( B  X.  B ) 
\  `'  <  )
)
3428, 33syl5req 2495 . . . . 5  |-  ( B 
C_  RR*  ->  ( ( B  X.  B )  \  `'  <  )  =  (  <_  i^i  ( B  X.  B ) ) )
3534adantl 466 . . . 4  |-  ( ( A  C_  RR*  /\  B  C_ 
RR* )  ->  (
( B  X.  B
)  \  `'  <  )  =  (  <_  i^i  ( B  X.  B
) ) )
36 isoeq3 6198 . . . 4  |-  ( ( ( B  X.  B
)  \  `'  <  )  =  (  <_  i^i  ( B  X.  B
) )  ->  ( F  Isom  ( `'  <_  i^i  ( A  X.  A
) ) ,  ( ( B  X.  B
)  \  `'  <  ) ( A ,  B
)  <->  F  Isom  ( `' 
<_  i^i  ( A  X.  A ) ) ,  (  <_  i^i  ( B  X.  B ) ) ( A ,  B
) ) )
3735, 36syl 16 . . 3  |-  ( ( A  C_  RR*  /\  B  C_ 
RR* )  ->  ( F  Isom  ( `'  <_  i^i  ( A  X.  A
) ) ,  ( ( B  X.  B
)  \  `'  <  ) ( A ,  B
)  <->  F  Isom  ( `' 
<_  i^i  ( A  X.  A ) ) ,  (  <_  i^i  ( B  X.  B ) ) ( A ,  B
) ) )
384, 25, 373bitrd 279 . 2  |-  ( ( A  C_  RR*  /\  B  C_ 
RR* )  ->  ( F  Isom  <  ,  `'  <  ( A ,  B
)  <->  F  Isom  ( `' 
<_  i^i  ( A  X.  A ) ) ,  (  <_  i^i  ( B  X.  B ) ) ( A ,  B
) ) )
39 isocnv2 6208 . . 3  |-  ( F 
Isom  `'  <_  ,  <_  ( A ,  B )  <-> 
F  Isom  `' `'  <_  ,  `'  <_  ( A ,  B )
)
40 isores2 6210 . . . 4  |-  ( F 
Isom  `'  <_  ,  <_  ( A ,  B )  <-> 
F  Isom  `'  <_  ,  (  <_  i^i  ( B  X.  B ) ) ( A ,  B
) )
41 isores1 6211 . . . 4  |-  ( F 
Isom  `'  <_  ,  (  <_  i^i  ( B  X.  B ) ) ( A ,  B )  <-> 
F  Isom  ( `'  <_  i^i  ( A  X.  A ) ) ,  (  <_  i^i  ( B  X.  B ) ) ( A ,  B
) )
4240, 41bitri 249 . . 3  |-  ( F 
Isom  `'  <_  ,  <_  ( A ,  B )  <-> 
F  Isom  ( `'  <_  i^i  ( A  X.  A ) ) ,  (  <_  i^i  ( B  X.  B ) ) ( A ,  B
) )
43 lerel 9649 . . . . 5  |-  Rel  <_
44 dfrel2 5443 . . . . 5  |-  ( Rel 
<_ 
<->  `' `'  <_  =  <_ 
)
4543, 44mpbi 208 . . . 4  |-  `' `'  <_  =  <_
46 isoeq2 6197 . . . 4  |-  ( `' `'  <_  =  <_  ->  ( F  Isom  `' `'  <_  ,  `'  <_  ( A ,  B )  <->  F 
Isom  <_  ,  `'  <_  ( A ,  B ) ) )
4745, 46ax-mp 5 . . 3  |-  ( F 
Isom  `' `'  <_  ,  `'  <_  ( A ,  B
)  <->  F  Isom  <_  ,  `'  <_  ( A ,  B
) )
4839, 42, 473bitr3ri 276 . 2  |-  ( F 
Isom  <_  ,  `'  <_  ( A ,  B )  <-> 
F  Isom  ( `'  <_  i^i  ( A  X.  A ) ) ,  (  <_  i^i  ( B  X.  B ) ) ( A ,  B
) )
4938, 48syl6bbr 263 1  |-  ( ( A  C_  RR*  /\  B  C_ 
RR* )  ->  ( F  Isom  <  ,  `'  <  ( A ,  B
)  <->  F  Isom  <_  ,  `'  <_  ( A ,  B
) ) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    <-> wb 184    /\ wa 369    = wceq 1381    \ cdif 3455    i^i cin 3457    C_ wss 3458    X. cxp 4983   `'ccnv 4984   Rel wrel 4990    Isom wiso 5575   RR*cxr 9625    < clt 9626    <_ cle 9627
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1603  ax-4 1616  ax-5 1689  ax-6 1732  ax-7 1774  ax-8 1804  ax-9 1806  ax-10 1821  ax-11 1826  ax-12 1838  ax-13 1983  ax-ext 2419  ax-sep 4554  ax-nul 4562  ax-pow 4611  ax-pr 4672
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 974  df-tru 1384  df-ex 1598  df-nf 1602  df-sb 1725  df-eu 2270  df-mo 2271  df-clab 2427  df-cleq 2433  df-clel 2436  df-nfc 2591  df-ne 2638  df-ral 2796  df-rex 2797  df-rab 2800  df-v 3095  df-sbc 3312  df-dif 3461  df-un 3463  df-in 3465  df-ss 3472  df-nul 3768  df-if 3923  df-sn 4011  df-pr 4013  df-op 4017  df-uni 4231  df-br 4434  df-opab 4492  df-id 4781  df-xp 4991  df-rel 4992  df-cnv 4993  df-co 4994  df-dm 4995  df-rn 4996  df-res 4997  df-ima 4998  df-iota 5537  df-fun 5576  df-fn 5577  df-f 5578  df-f1 5579  df-fo 5580  df-f1o 5581  df-fv 5582  df-isom 5583  df-xr 9630  df-ltxr 9631  df-le 9632
This theorem is referenced by:  xrge0iifhmeo  27784
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