False
From OpenEUO
Description
false is a lua keyword and valid value of type 'boolean'. While false is the opposite of true, nil is also considered false unless explicitly tested for. All boolean operators return either true or false.
local a,b,c = true,false,nil print(a == b) print(a ~= b) print(a ~= c) print(b ~= c) print(c ~= nil)
--> 'false' --> 'true' --> 'true' --> 'true' --> 'false'