DOCUMENT 12 ON KALUZA'S THEORY 71 4 IDfU .1 JWS'K .M VII ,r = o "ipa dsn1? mtr ^Notrn ixnty ijbd .dsn1? mts ^d\-i -ran jrapn myt^n ^hn pm ppsrua^N it by bipz pm (8) g45 = jnap myty g44 (8a) g45 = jn3p myt? g55 -nap^NPi bw g45 ^yjaispn ,m^p^N puisn ty mpon bw epo-pta ün mty g45 ^Kjaisnty ,(8a)"i (8) mwirnno kxt pm .dsn1? mty jtpp6 -ps np^aao ^np1? ntrsN ^n dj pi ,Dipnn mntyan ^otsn ^wwais u1? ptr m .Dipn dsn1? na^D-nmai g(xv"3 pi ^rin pins Nn^p *io bw imir6 pNtr /uroipt nm .piap^N myot^DPi in NPim ,Dipn hzn nVim