[] v : a -> [] w : b -> SKIP
[] v : a -> [] w : b -> SKIP
[] v : a -> [] w : b -> SKIP
if true then STOP else SKIP
if true then STOP else SKIP
if true then STOP else SKIP
if false then STOP else SKIP
if false then STOP else SKIP
if false then STOP else SKIP
if x = y then STOP else SKIP
if x = y then STOP else SKIP
if x = y then STOP else SKIP
if (x = y) then STOP else SKIP
if x = y then STOP else SKIP
if (x = y) then STOP else SKIP
STOP || ( SKIP ||| STOP )
STOP || ( SKIP ||| STOP )
STOP || ( SKIP ||| STOP )