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Theorem ax5seglem6 25777
Description: Lemma for ax5seg 25781. 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 1076 . . . 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 9047 . . . . . 6  |-  0  e.  RR
3 1re 9046 . . . . . 6  |-  1  e.  RR
42, 3elicc2i 10932 . . . . 5  |-  ( T  e.  ( 0 [,] 1 )  <->  ( T  e.  RR  /\  0  <_  T  /\  T  <_  1
) )
54simp1bi 972 . . . 4  |-  ( T  e.  ( 0 [,] 1 )  ->  T  e.  RR )
6 resqcl 11404 . . . . 5  |-  ( T  e.  RR  ->  ( T ^ 2 )  e.  RR )
76recnd 9070 . . . 4  |-  ( T  e.  RR  ->  ( T ^ 2 )  e.  CC )
81, 5, 73syl 19 . . 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 1077 . . . 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 10932 . . . . 5  |-  ( S  e.  ( 0 [,] 1 )  <->  ( S  e.  RR  /\  0  <_  S  /\  S  <_  1
) )
1110simp1bi 972 . . . 4  |-  ( S  e.  ( 0 [,] 1 )  ->  S  e.  RR )
12 resqcl 11404 . . . . 5  |-  ( S  e.  RR  ->  ( S ^ 2 )  e.  RR )
1312recnd 9070 . . . 4  |-  ( S  e.  RR  ->  ( S ^ 2 )  e.  CC )
149, 11, 133syl 19 . . 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 11267 . . . 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 1002 . . . . . . . 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 978 . . . . . . 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 25745 . . . . . . 7  |-  ( ( A  e.  ( EE
`  N )  /\  j  e.  ( 1 ... N ) )  ->  ( A `  j )  e.  CC )
1917, 18sylan 458 . . . . . 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 1004 . . . . . . . 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 978 . . . . . . 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 25745 . . . . . . 7  |-  ( ( C  e.  ( EE
`  N )  /\  j  e.  ( 1 ... N ) )  ->  ( C `  j )  e.  CC )
2321, 22sylan 458 . . . . . 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 9367 . . . . 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 11476 . . . 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 12482 . . 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 981 . . . 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 1022 . . . 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 990 . . . 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 1078 . . . 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 25776 . . . 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 1191 . . 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 985 . . . . . 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 1003 . . . . . . . 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 1005 . . . . . . . 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 1006 . . . . . . . 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 25743 . . . . . . . 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 1185 . . . . . . 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 978 . . . . . 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 202 . . . . 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 25771 . . . . . 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 1193 . . . . 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 978 . . . . . 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 1007 . . . . . . 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 978 . . . . . 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 1079 . . . . . 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 25771 . . . . . 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 1193 . . . . 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 2444 . . . 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 1023 . . . . . 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 991 . . . . . 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 992 . . . . . 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 986 . . . . . 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 25774 . . . . . 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 1212 . . . . 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 6056 . . . 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 2439 . . 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 9614 . 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 973 . . . . 5  |-  ( T  e.  ( 0 [,] 1 )  ->  0  <_  T )
605, 59jca 519 . . . 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 973 . . . . 5  |-  ( S  e.  ( 0 [,] 1 )  ->  0  <_  S )
6311, 62jca 519 . . . 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 11409 . . 3  |-  ( ( ( T  e.  RR  /\  0  <_  T )  /\  ( S  e.  RR  /\  0  <_  S )
)  ->  ( ( T ^ 2 )  =  ( S ^ 2 )  <->  T  =  S
) )
6661, 64, 65syl2anc 643 . 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 202 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 set class
Syntax hints:    -> wi 4    <-> wb 177    /\ wa 359    /\ w3a 936    = wceq 1649    e. wcel 1721    =/= wne 2567   A.wral 2666   <.cop 3777   class class class wbr 4172   ` cfv 5413  (class class class)co 6040   CCcc 8944   RRcr 8945   0cc0 8946   1c1 8947    + caddc 8949    x. cmul 8951    <_ cle 9077    - cmin 9247   NNcn 9956   2c2 10005   [,]cicc 10875   ...cfz 10999   ^cexp 11337   sum_csu 12434   EEcee 25731  Cgrccgr 25733
This theorem is referenced by:  ax5seg  25781
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1552  ax-5 1563  ax-17 1623  ax-9 1662  ax-8 1683  ax-13 1723  ax-14 1725  ax-6 1740  ax-7 1745  ax-11 1757  ax-12 1946  ax-ext 2385  ax-rep 4280  ax-sep 4290  ax-nul 4298  ax-pow 4337  ax-pr 4363  ax-un 4660  ax-inf2 7552  ax-cnex 9002  ax-resscn 9003  ax-1cn 9004  ax-icn 9005  ax-addcl 9006  ax-addrcl 9007  ax-mulcl 9008  ax-mulrcl 9009  ax-mulcom 9010  ax-addass 9011  ax-mulass 9012  ax-distr 9013  ax-i2m1 9014  ax-1ne0 9015  ax-1rid 9016  ax-rnegex 9017  ax-rrecex 9018  ax-cnre 9019  ax-pre-lttri 9020  ax-pre-lttrn 9021  ax-pre-ltadd 9022  ax-pre-mulgt0 9023  ax-pre-sup 9024
This theorem depends on definitions:  df-bi 178  df-or 360  df-an 361  df-3or 937  df-3an 938  df-tru 1325  df-ex 1548  df-nf 1551  df-sb 1656  df-eu 2258  df-mo 2259  df-clab 2391  df-cleq 2397  df-clel 2400  df-nfc 2529  df-ne 2569  df-nel 2570  df-ral 2671  df-rex 2672  df-reu 2673  df-rmo 2674  df-rab 2675  df-v 2918  df-sbc 3122  df-csb 3212  df-dif 3283  df-un 3285  df-in 3287  df-ss 3294  df-pss 3296  df-nul 3589  df-if 3700  df-pw 3761  df-sn 3780  df-pr 3781  df-tp 3782  df-op 3783  df-uni 3976  df-int 4011  df-iun 4055  df-br 4173  df-opab 4227  df-mpt 4228  df-tr 4263  df-eprel 4454  df-id 4458  df-po 4463  df-so 4464  df-fr 4501  df-se 4502  df-we 4503  df-ord 4544  df-on 4545  df-lim 4546  df-suc 4547  df-om 4805  df-xp 4843  df-rel 4844  df-cnv 4845  df-co 4846  df-dm 4847  df-rn 4848  df-res 4849  df-ima 4850  df-iota 5377  df-fun 5415  df-fn 5416  df-f 5417  df-f1 5418  df-fo 5419  df-f1o 5420  df-fv 5421  df-isom 5422  df-ov 6043  df-oprab 6044  df-mpt2 6045  df-1st 6308  df-2nd 6309  df-riota 6508  df-recs 6592  df-rdg 6627  df-1o 6683  df-oadd 6687  df-er 6864  df-map 6979  df-en 7069  df-dom 7070  df-sdom 7071  df-fin 7072  df-sup 7404  df-oi 7435  df-card 7782  df-pnf 9078  df-mnf 9079  df-xr 9080  df-ltxr 9081  df-le 9082  df-sub 9249  df-neg 9250  df-div 9634  df-nn 9957  df-2 10014  df-3 10015  df-n0 10178  df-z 10239  df-uz 10445  df-rp 10569  df-ico 10878  df-icc 10879  df-fz 11000  df-fzo 11091  df-seq 11279  df-exp 11338  df-hash 11574  df-cj 11859  df-re 11860  df-im 11861  df-sqr 11995  df-abs 11996  df-clim 12237  df-sum 12435  df-ee 25734  df-cgr 25736
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