"To facilitate that, three global objects are provided:" followed by a list of four objects. Also, the list should probably include the settings object.
In the class listing:
"LuaDecorativePrototype Prototype of a virtual signal." - someone copied a class?

In http://lua-api.factorio.com/latest/Conc ... Parameters - only lists the old four ops as legal strings for operation. Similarly, DeciderCombinatorParameters and CircuitCondition only list the old comparison operators.
http://lua-api.factorio.com/latest/Data-Lifecycle.html does not mention when settings.lua is in the process or when the settings object is available