270
THE
RELATIVITY PRINCIPLE
1 dN]
51'
c
up
XH
+
cte'
1
dl
c
UF
1 !
51' dV
c
oF
7h}
1
dV 57'
-
dZ'
,
|,
«f*»l
1 ^ 1 M
c
w
1
?#'
_
5/'
dX1
c
bv
dx' bz'
1
M1
dX
dV
c
cfF
by[
bx'
where
we
have
put
(5')
(6')
r
=
i
r
=
ß
Y
-
-N
v
=
ß
Z
+
V-M
(7a)
Z"
=
Z
r
=
ß
M
+
-Z
if
=
ß
n-
"Y
(7b)
,
ÄP
x
dV
x
0Z'
n
p
~
^
+ W
+
'
ß
1
-
(8)