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Theorem ax5seglem6 23003
Description: Lemma for ax5seg 23007. Given two line segments that are divided into pieces, if the pieces are congruent, then the scaling constant is the same. (Contributed by Scott Fenton, 12-Jun-2013.)
Assertion
Ref Expression
ax5seglem6  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  T  =  S )
Distinct variable groups:    A, i    B, i    C, i    D, i   
i, E    i, F    i, N    S, i    T, i

Proof of Theorem ax5seglem6
Dummy variable  j is distinct from all other variables.
StepHypRef Expression
1 simp22l 1100 . . . 4  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  T  e.  ( 0 [,] 1
) )
2 0re 9374 . . . . . 6  |-  0  e.  RR
3 1re 9373 . . . . . 6  |-  1  e.  RR
42, 3elicc2i 11349 . . . . 5  |-  ( T  e.  ( 0 [,] 1 )  <->  ( T  e.  RR  /\  0  <_  T  /\  T  <_  1
) )
54simp1bi 996 . . . 4  |-  ( T  e.  ( 0 [,] 1 )  ->  T  e.  RR )
6 resqcl 11917 . . . . 5  |-  ( T  e.  RR  ->  ( T ^ 2 )  e.  RR )
76recnd 9400 . . . 4  |-  ( T  e.  RR  ->  ( T ^ 2 )  e.  CC )
81, 5, 73syl 20 . . 3  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( T ^ 2 )  e.  CC )
9 simp22r 1101 . . . 4  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  S  e.  ( 0 [,] 1
) )
102, 3elicc2i 11349 . . . . 5  |-  ( S  e.  ( 0 [,] 1 )  <->  ( S  e.  RR  /\  0  <_  S  /\  S  <_  1
) )
1110simp1bi 996 . . . 4  |-  ( S  e.  ( 0 [,] 1 )  ->  S  e.  RR )
12 resqcl 11917 . . . . 5  |-  ( S  e.  RR  ->  ( S ^ 2 )  e.  RR )
1312recnd 9400 . . . 4  |-  ( S  e.  RR  ->  ( S ^ 2 )  e.  CC )
149, 11, 133syl 20 . . 3  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( S ^ 2 )  e.  CC )
15 fzfid 11779 . . . 4  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( 1 ... N )  e. 
Fin )
16 simprl1 1026 . . . . . . . 8  |-  ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  ->  A  e.  ( EE `  N ) )
17163ad2ant1 1002 . . . . . . 7  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  A  e.  ( EE `  N ) )
18 fveecn 22971 . . . . . . 7  |-  ( ( A  e.  ( EE
`  N )  /\  j  e.  ( 1 ... N ) )  ->  ( A `  j )  e.  CC )
1917, 18sylan 468 . . . . . 6  |-  ( ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE
`  N )  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N
) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  /\  j  e.  ( 1 ... N
) )  ->  ( A `  j )  e.  CC )
20 simprl3 1028 . . . . . . . 8  |-  ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  ->  C  e.  ( EE `  N ) )
21203ad2ant1 1002 . . . . . . 7  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  C  e.  ( EE `  N ) )
22 fveecn 22971 . . . . . . 7  |-  ( ( C  e.  ( EE
`  N )  /\  j  e.  ( 1 ... N ) )  ->  ( C `  j )  e.  CC )
2321, 22sylan 468 . . . . . 6  |-  ( ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE
`  N )  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N
) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  /\  j  e.  ( 1 ... N
) )  ->  ( C `  j )  e.  CC )
2419, 23subcld 9707 . . . . 5  |-  ( ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE
`  N )  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N
) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  /\  j  e.  ( 1 ... N
) )  ->  (
( A `  j
)  -  ( C `
 j ) )  e.  CC )
2524sqcld 11990 . . . 4  |-  ( ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE
`  N )  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N
) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  /\  j  e.  ( 1 ... N
) )  ->  (
( ( A `  j )  -  ( C `  j )
) ^ 2 )  e.  CC )
2615, 25fsumcl 13194 . . 3  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  sum_ j  e.  ( 1 ... N
) ( ( ( A `  j )  -  ( C `  j ) ) ^
2 )  e.  CC )
27 simp1l 1005 . . . 4  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  N  e.  NN )
28 simp1rl 1046 . . . 4  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) ) )
29 simp21 1014 . . . 4  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  A  =/=  B )
30 simp23l 1102 . . . 4  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  A. i  e.  ( 1 ... N
) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i )
)  +  ( T  x.  ( C `  i ) ) ) )
31 ax5seglem5 23002 . . . 4  |-  ( ( ( N  e.  NN  /\  ( A  e.  ( EE `  N )  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) ) )  /\  ( A  =/=  B  /\  T  e.  ( 0 [,] 1
)  /\  A. i  e.  ( 1 ... N
) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i )
)  +  ( T  x.  ( C `  i ) ) ) ) )  ->  sum_ j  e.  ( 1 ... N
) ( ( ( A `  j )  -  ( C `  j ) ) ^
2 )  =/=  0
)
3227, 28, 29, 1, 30, 31syl23anc 1218 . . 3  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  sum_ j  e.  ( 1 ... N
) ( ( ( A `  j )  -  ( C `  j ) ) ^
2 )  =/=  0
)
33 simp3l 1009 . . . . . 6  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  <. A ,  B >.Cgr <. D ,  E >. )
34 simprl2 1027 . . . . . . . 8  |-  ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  ->  B  e.  ( EE `  N ) )
35 simprr1 1029 . . . . . . . 8  |-  ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  ->  D  e.  ( EE `  N ) )
36 simprr2 1030 . . . . . . . 8  |-  ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  ->  E  e.  ( EE `  N ) )
37 brcgr 22969 . . . . . . . 8  |-  ( ( ( A  e.  ( EE `  N )  /\  B  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
) ) )  -> 
( <. A ,  B >.Cgr
<. D ,  E >.  <->  sum_ j  e.  ( 1 ... N ) ( ( ( A `  j )  -  ( B `  j )
) ^ 2 )  =  sum_ j  e.  ( 1 ... N ) ( ( ( D `
 j )  -  ( E `  j ) ) ^ 2 ) ) )
3816, 34, 35, 36, 37syl22anc 1212 . . . . . . 7  |-  ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  -> 
( <. A ,  B >.Cgr
<. D ,  E >.  <->  sum_ j  e.  ( 1 ... N ) ( ( ( A `  j )  -  ( B `  j )
) ^ 2 )  =  sum_ j  e.  ( 1 ... N ) ( ( ( D `
 j )  -  ( E `  j ) ) ^ 2 ) ) )
39383ad2ant1 1002 . . . . . 6  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( <. A ,  B >.Cgr <. D ,  E >. 
<-> 
sum_ j  e.  ( 1 ... N ) ( ( ( A `
 j )  -  ( B `  j ) ) ^ 2 )  =  sum_ j  e.  ( 1 ... N ) ( ( ( D `
 j )  -  ( E `  j ) ) ^ 2 ) ) )
4033, 39mpbid 210 . . . . 5  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  sum_ j  e.  ( 1 ... N
) ( ( ( A `  j )  -  ( B `  j ) ) ^
2 )  =  sum_ j  e.  ( 1 ... N ) ( ( ( D `  j )  -  ( E `  j )
) ^ 2 ) )
41 ax5seglem1 22997 . . . . . 6  |-  ( ( N  e.  NN  /\  ( A  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( T  e.  (
0 [,] 1 )  /\  A. i  e.  ( 1 ... N
) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i )
)  +  ( T  x.  ( C `  i ) ) ) ) )  ->  sum_ j  e.  ( 1 ... N
) ( ( ( A `  j )  -  ( B `  j ) ) ^
2 )  =  ( ( T ^ 2 )  x.  sum_ j  e.  ( 1 ... N
) ( ( ( A `  j )  -  ( C `  j ) ) ^
2 ) ) )
4227, 17, 21, 1, 30, 41syl122anc 1220 . . . . 5  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  sum_ j  e.  ( 1 ... N
) ( ( ( A `  j )  -  ( B `  j ) ) ^
2 )  =  ( ( T ^ 2 )  x.  sum_ j  e.  ( 1 ... N
) ( ( ( A `  j )  -  ( C `  j ) ) ^
2 ) ) )
43353ad2ant1 1002 . . . . . 6  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  D  e.  ( EE `  N ) )
44 simprr3 1031 . . . . . . 7  |-  ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  ->  F  e.  ( EE `  N ) )
45443ad2ant1 1002 . . . . . 6  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  F  e.  ( EE `  N ) )
46 simp23r 1103 . . . . . 6  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  A. i  e.  ( 1 ... N
) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i )
)  +  ( S  x.  ( F `  i ) ) ) )
47 ax5seglem1 22997 . . . . . 6  |-  ( ( N  e.  NN  /\  ( D  e.  ( EE `  N )  /\  F  e.  ( EE `  N ) )  /\  ( S  e.  (
0 [,] 1 )  /\  A. i  e.  ( 1 ... N
) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i )
)  +  ( S  x.  ( F `  i ) ) ) ) )  ->  sum_ j  e.  ( 1 ... N
) ( ( ( D `  j )  -  ( E `  j ) ) ^
2 )  =  ( ( S ^ 2 )  x.  sum_ j  e.  ( 1 ... N
) ( ( ( D `  j )  -  ( F `  j ) ) ^
2 ) ) )
4827, 43, 45, 9, 46, 47syl122anc 1220 . . . . 5  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  sum_ j  e.  ( 1 ... N
) ( ( ( D `  j )  -  ( E `  j ) ) ^
2 )  =  ( ( S ^ 2 )  x.  sum_ j  e.  ( 1 ... N
) ( ( ( D `  j )  -  ( F `  j ) ) ^
2 ) ) )
4940, 42, 483eqtr3d 2473 . . . 4  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( ( T ^ 2 )  x. 
sum_ j  e.  ( 1 ... N ) ( ( ( A `
 j )  -  ( C `  j ) ) ^ 2 ) )  =  ( ( S ^ 2 )  x.  sum_ j  e.  ( 1 ... N ) ( ( ( D `
 j )  -  ( F `  j ) ) ^ 2 ) ) )
50 simp1rr 1047 . . . . . 6  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( D  e.  ( EE `  N
)  /\  E  e.  ( EE `  N )  /\  F  e.  ( EE `  N ) ) )
51 simp22 1015 . . . . . 6  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( T  e.  ( 0 [,] 1
)  /\  S  e.  ( 0 [,] 1
) ) )
52 simp23 1016 . . . . . 6  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )
53 simp3r 1010 . . . . . 6  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  <. B ,  C >.Cgr <. E ,  F >. )
54 ax5seglem3 23000 . . . . . 6  |-  ( ( ( N  e.  NN  /\  ( A  e.  ( EE `  N )  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) )  /\  (
( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  sum_ j  e.  ( 1 ... N
) ( ( ( A `  j )  -  ( C `  j ) ) ^
2 )  =  sum_ j  e.  ( 1 ... N ) ( ( ( D `  j )  -  ( F `  j )
) ^ 2 ) )
5527, 28, 50, 51, 52, 33, 53, 54syl322anc 1239 . . . . 5  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  sum_ j  e.  ( 1 ... N
) ( ( ( A `  j )  -  ( C `  j ) ) ^
2 )  =  sum_ j  e.  ( 1 ... N ) ( ( ( D `  j )  -  ( F `  j )
) ^ 2 ) )
5655oveq2d 6096 . . . 4  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( ( S ^ 2 )  x. 
sum_ j  e.  ( 1 ... N ) ( ( ( A `
 j )  -  ( C `  j ) ) ^ 2 ) )  =  ( ( S ^ 2 )  x.  sum_ j  e.  ( 1 ... N ) ( ( ( D `
 j )  -  ( F `  j ) ) ^ 2 ) ) )
5749, 56eqtr4d 2468 . . 3  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( ( T ^ 2 )  x. 
sum_ j  e.  ( 1 ... N ) ( ( ( A `
 j )  -  ( C `  j ) ) ^ 2 ) )  =  ( ( S ^ 2 )  x.  sum_ j  e.  ( 1 ... N ) ( ( ( A `
 j )  -  ( C `  j ) ) ^ 2 ) ) )
588, 14, 26, 32, 57mulcan2ad 9960 . 2  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( T ^ 2 )  =  ( S ^ 2 ) )
594simp2bi 997 . . . . 5  |-  ( T  e.  ( 0 [,] 1 )  ->  0  <_  T )
605, 59jca 529 . . . 4  |-  ( T  e.  ( 0 [,] 1 )  ->  ( T  e.  RR  /\  0  <_  T ) )
611, 60syl 16 . . 3  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( T  e.  RR  /\  0  <_  T ) )
6210simp2bi 997 . . . . 5  |-  ( S  e.  ( 0 [,] 1 )  ->  0  <_  S )
6311, 62jca 529 . . . 4  |-  ( S  e.  ( 0 [,] 1 )  ->  ( S  e.  RR  /\  0  <_  S ) )
649, 63syl 16 . . 3  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( S  e.  RR  /\  0  <_  S ) )
65 sq11 11922 . . 3  |-  ( ( ( T  e.  RR  /\  0  <_  T )  /\  ( S  e.  RR  /\  0  <_  S )
)  ->  ( ( T ^ 2 )  =  ( S ^ 2 )  <->  T  =  S
) )
6661, 64, 65syl2anc 654 . 2  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  ( ( T ^ 2 )  =  ( S ^ 2 )  <->  T  =  S
) )
6758, 66mpbid 210 1  |-  ( ( ( N  e.  NN  /\  ( ( A  e.  ( EE `  N
)  /\  B  e.  ( EE `  N )  /\  C  e.  ( EE `  N ) )  /\  ( D  e.  ( EE `  N )  /\  E  e.  ( EE `  N
)  /\  F  e.  ( EE `  N ) ) ) )  /\  ( A  =/=  B  /\  ( T  e.  ( 0 [,] 1 )  /\  S  e.  ( 0 [,] 1 ) )  /\  ( A. i  e.  ( 1 ... N ) ( B `  i )  =  ( ( ( 1  -  T )  x.  ( A `  i ) )  +  ( T  x.  ( C `  i )
) )  /\  A. i  e.  ( 1 ... N ) ( E `  i )  =  ( ( ( 1  -  S )  x.  ( D `  i ) )  +  ( S  x.  ( F `  i )
) ) ) )  /\  ( <. A ,  B >.Cgr <. D ,  E >.  /\  <. B ,  C >.Cgr
<. E ,  F >. ) )  ->  T  =  S )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    <-> wb 184    /\ wa 369    /\ w3a 958    = wceq 1362    e. wcel 1755    =/= wne 2596   A.wral 2705   <.cop 3871   class class class wbr 4280   ` cfv 5406  (class class class)co 6080   CCcc 9268   RRcr 9269   0cc0 9270   1c1 9271    + caddc 9273    x. cmul 9275    <_ cle 9407    - cmin 9583   NNcn 10310   2c2 10359   [,]cicc 11291   ...cfz 11424   ^cexp 11849   sum_csu 13147   EEcee 22957  Cgrccgr 22959
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1594  ax-4 1605  ax-5 1669  ax-6 1707  ax-7 1727  ax-8 1757  ax-9 1759  ax-10 1774  ax-11 1779  ax-12 1791  ax-13 1942  ax-ext 2414  ax-rep 4391  ax-sep 4401  ax-nul 4409  ax-pow 4458  ax-pr 4519  ax-un 6361  ax-inf2 7835  ax-cnex 9326  ax-resscn 9327  ax-1cn 9328  ax-icn 9329  ax-addcl 9330  ax-addrcl 9331  ax-mulcl 9332  ax-mulrcl 9333  ax-mulcom 9334  ax-addass 9335  ax-mulass 9336  ax-distr 9337  ax-i2m1 9338  ax-1ne0 9339  ax-1rid 9340  ax-rnegex 9341  ax-rrecex 9342  ax-cnre 9343  ax-pre-lttri 9344  ax-pre-lttrn 9345  ax-pre-ltadd 9346  ax-pre-mulgt0 9347  ax-pre-sup 9348
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3or 959  df-3an 960  df-tru 1365  df-fal 1368  df-ex 1590  df-nf 1593  df-sb 1700  df-eu 2258  df-mo 2259  df-clab 2420  df-cleq 2426  df-clel 2429  df-nfc 2558  df-ne 2598  df-nel 2599  df-ral 2710  df-rex 2711  df-reu 2712  df-rmo 2713  df-rab 2714  df-v 2964  df-sbc 3176  df-csb 3277  df-dif 3319  df-un 3321  df-in 3323  df-ss 3330  df-pss 3332  df-nul 3626  df-if 3780  df-pw 3850  df-sn 3866  df-pr 3868  df-tp 3870  df-op 3872  df-uni 4080  df-int 4117  df-iun 4161  df-br 4281  df-opab 4339  df-mpt 4340  df-tr 4374  df-eprel 4619  df-id 4623  df-po 4628  df-so 4629  df-fr 4666  df-se 4667  df-we 4668  df-ord 4709  df-on 4710  df-lim 4711  df-suc 4712  df-xp 4833  df-rel 4834  df-cnv 4835  df-co 4836  df-dm 4837  df-rn 4838  df-res 4839  df-ima 4840  df-iota 5369  df-fun 5408  df-fn 5409  df-f 5410  df-f1 5411  df-fo 5412  df-f1o 5413  df-fv 5414  df-isom 5415  df-riota 6039  df-ov 6083  df-oprab 6084  df-mpt2 6085  df-om 6466  df-1st 6566  df-2nd 6567  df-recs 6818  df-rdg 6852  df-1o 6908  df-oadd 6912  df-er 7089  df-map 7204  df-en 7299  df-dom 7300  df-sdom 7301  df-fin 7302  df-sup 7679  df-oi 7712  df-card 8097  df-pnf 9408  df-mnf 9409  df-xr 9410  df-ltxr 9411  df-le 9412  df-sub 9585  df-neg 9586  df-div 9982  df-nn 10311  df-2 10368  df-3 10369  df-n0 10568  df-z 10635  df-uz 10850  df-rp 10980  df-ico 11294  df-icc 11295  df-fz 11425  df-fzo 11533  df-seq 11791  df-exp 11850  df-hash 12088  df-cj 12572  df-re 12573  df-im 12574  df-sqr 12708  df-abs 12709  df-clim 12950  df-sum 13148  df-ee 22960  df-cgr 22962
This theorem is referenced by:  ax5seg  23007
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