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> Although "local function X ... end" is basically syntax sugar for
> "local X = function ... end", it isn't exactly equivalent, as this
> example shows:  The former syntax makes the definition visible to the
> function body, whereas the latter syntax does not.

The manual [2] is clear about this:  "local function X ... end" is
equal to "local X; X = function end" and NOT to "local X = function
This makes the use of recursive local functions easier to write.