small gnu find question

[Alex fxmbsw7 Ratchev]

i look at half older code i did
i remember quite doing so, sorry for not testing unconfortably on the
cmdline but asking here..

do i need the second last statement, the -o, there ?

   find \
    "${pos[@]}" \
     \( -name '*.off' -o -name '*.old' -o -name '*.old.*' -o -name
'*.off.*' -o -name '*.sw[a-z]' \) -prune -o \
     -printf '%Y\0%s\0%m\0%T@\0%f\0%p\0\0'